A description of a new species of podapolipid mite, Tetrapolipus oudemansi, associated with the Philippine cockroach, Panesthia angustipennis (Illiger) is presented. Tetrapolipus blattae (Oudemans 19 11) collected from P. angustipennis from Java is redescribed

Husband, Robert W

English

Robert W Husband

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A New Species of Podapolipid Mite, and a Redescription of Tetrapolipus Blattae (Oudemans) (Acarina: Podapolipidae)

ValpoScholar

The Great Lakes Entomologist 
Volume 11 
Number 2 - Summer 1978 Number 2 - Summer 
1978 
Article 4 
June 1978 
A New Species of Podapolipid Mite, and a Redescription of 
Tetrapolipus Blattae (Oudemans) (Acarina: Podapolipidae) 
Robert W. Husband 
Adrian College 
Follow this and additional works at: https://scholar.valpo.edu/tgle 
 Part of the Entomology Commons 
Recommended Citation 
Husband, Robert W. 1978. "A New Species of Podapolipid Mite, and a Redescription of Tetrapolipus 
Blattae (Oudemans) (Acarina: Podapolipidae)," The Great Lakes Entomologist, vol 11 (2) 
Available at: https://scholar.valpo.edu/tgle/vol11/iss2/4 
This Peer-Review Article is brought to you for free and open access by the Department of Biology at ValpoScholar. 
It has been accepted for inclusion in The Great Lakes Entomologist by an authorized administrator of ValpoScholar. 
For more information, please contact a ValpoScholar staff member at scholar@valpo.edu. 
1978 THE GREAT LAKES ENTOMOLOGIST 9 3 
A NEW SPECIES OF PODAPOLlPlD MITE, AND 
A REDESCRIPTION OF TETRAPOLIPUS BLATTAE (OUDEIWANS) 
(ACARINA: PODAPOLIPIDAE) 
Robert W.  usb band' 
ABSTRACT 
A description of a new species of podapolipid mite, Tetrapolipus oudemansi, 
associated with the Philippine cockroach, Panesthia angustipennis (Illiger) is presented. 
Tetrapolipus blattae (Oudemans 19 11) collected from P. angustipennis from Java is 
redescribed. 
Tetrapolipus blattae (Oudemans 191 l), described from a single larviform female, was 
placed by Oudemans in the genus Pediculoides. No mention was made of this species 
when the family Podapolipidae was erected by Oudemans (1931). Vitzthum (1943) first 
used the combination Tetrapolipus blattae and reports the species from both Panesthia 
angustipennis and Periplaneta australasiae collected from Java. In an attempt to  find 
males and adult females, the specimens of cockroaches examined by Oudemans were 
reexamined and an additional specimen was found. A specimen of P. angustipennis from 
the Philippines yielded a new species here described as Tetrapolipus oudemansi in tribute 
to the numerous contributions to  acarology made by Dr. Oudemans. Tetrapolipus blattae 
(Oudemans 191 1) is redescribed and compared with T. oudemansi. An undescribed 
species of Tetrapolipus from P. australasiae from Java is briefly mentioned as it is 
probably the one which lead Vitzthum (1943) to change Pediculoides blattae to 
Tetrapolipus blattae. 
MATERIALS AND METHODS 
Pinned cockroaches were placed in individual beakers of distilled water and heated to 
approximately 50°C. for one half-hour. They were removed, placed over a Petri dish and 
washed with 70% alcohol administered from a tube inserted in a plastic squeeze bottle. 
Mites were removed from the Petri dish and placed in 70% alcohol in vials for storage. 
Some mites were placed on slides in Hoyer's mounting medium and placed on a slide 
warmer for a minimum of 24 hours. Mites were examined and drawn with the aid of a 
Wild-Heerbrug phase contrast microscope with a drawing attachment. Some specimens 
were placed on double stick tape on aluminum studs, gold coated, and examined with a 
Hitachi HHS-2R scanning electron microscope at  20 kV. Terms used by van der Hammen 
(1970) for Tarsonemidae and modified by Regenfuss (1974) for Podapolipidae have been 
incorporated, in part. 
Tetrapolipus oudemansi new species 
(Figs. 1-5) 
MALE: (Figs. 1, 2). Idiosoma 112 pm long, 92 pm wide. Gnathosoma: 30 pm long, 
23 pm wide; gnathosomal setae very short, palps relatively well developed. Chelicerae 
13  pm long. Propodosoma with three pairs of short setae; aedeagus located in anterior 
314 of metapodosoma. Each coxal plate with a single short seta; coxae 111 in contact 
medially. One spine on tibia I, 2 spines on tibiae 11, 111. Two dorsal blunt setae on tarsus 
I, no solenidion on tibia I. Fourth pair of legs absent. Leg chaetotaxy as in Table 1. 
l ~ e ~ a r t m e n t  of Biology, Adrian College, Adrian, M I  49221. 
1
Husband: A New Species of Podapolipid Mite, and a Redescription of Tetrapo
Published by ValpoScholar, 1978
THE GREAT LAKES ENTOMOLOGIST Vol. 11, No. 2 
Fig. 1. T. oudemansi n-sp. Dorsum of male. 
LARVlFORM FEMALE: (Figs. 3, 4). Idiosoma 148 Mm long, 105 pm wide. Gnathosoma: 
40 pm long, 49 pm wide; ventral gnathosomal setae less than 114 width of gnathosoma; 
dorsal gnathosomal setae ca 113 width of gnathosoma; chelicerae 61 pm long. Propodo- 
soma broader than long with three pairs of setae, posterior pair longest. Metapodosomal 
plates 1 & 2 partially fused, three pairs of short setae. Opisthosomal plate 1 with 1 pair 
of short setae. Opisthosomal plate 2, ventral, with two pairs of setae; lateral pair short, 
medial pair more than 112 width of idiosoma. Coxae I, I1 fused, separated from coxae 
2
The Great Lakes Entomologist, Vol. 11, No. 2 [1978], Art. 4
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THE GREAT LAKES ENTOMOLOGIST 
Fig. 2. T. oudemansi n.sp. Venter of male. 
111; coxae 111 separated medially, each coxal plate with a single short setum. No tibia1 
spines. Two dorsal blunt setae on tarsus I, no solenidion on tibia I. Leg chaetotaxy as in 
Table I. 
FEMALE: (Fig. 5). Idiosoma 268 pm long, 195 pm wide. Gnathosoma 49 pm long, 35 pm 
wide; Chelicerae 42 pm long. Idiosoma without plates or setae. Posterior ventral genital 
opening extends 113 the distance of the ventral surface. One pair of legs; tarsi with three 
setae, a medial stout spine and a terminal sucker. 
3
Husband: A New Species of Podapolipid Mite, and a Redescription of Tetrapo
Published by ValpoScholar, 1978
THE GREAT LAKES ENTOMOLOGIST Vol. 11, No. 2 
Fig. 3. T. oudemmsi n.sp. Dorsum of lamiform female. 
EGG: 177 pm long, 82 pm wide; smooth, oval. 
Type data: All collected from Panesthia angustipennis (Illiger) (Orthoptera: Blaberi- 
dae). Holotype, male, Balbalaan, Kalinga, Luzon, Philippines; March, 1918, by W. 
Boettcher; allotype, larviform female, same data. Paratypes: 11 adult females, 9 lawiform 
females, 3 males, 2 eggs. Holotype, allotype, and adult female paratype deposited in 
Rijksmuseum van Natuurlijke Historie, Leiden, Netherlands. Additional male, larviform 
female, female, and egg paratypes deposited in the Acarology Collection, Biology 
Department, Adrian College, Adrian, Michigan. 
Tetrapolipus blattae (Oudeman s) 
(Fig. 6) 
Pediculoides blattae in Oudemans (1 91 1, 191 2, 19 15): as Tetrapolipus blattae in 
Vitzthum (1943), Naudo (1967), Regenfuss (1968). Type locality: from Panesthia 
angustipennis (Illiger) (Orthoptera: Blaberidae), East Java, Coll. MacGillavry. 
4
The Great Lakes Entomologist, Vol. 11, No. 2 [1978], Art. 4
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THE GREAT LAKES ENTOMOLOGIST 
Fig. 4 .  T. oudemansi n.sp. Venter of larviform female. 
Vitzthum reported T. blattae from Periplaneta australasiae. This report is probably in 
error as specimens collected from P. australasiae from Java and located in the Leiden 
Museum yielded a new species of Tetrapolipus which is not closely related to T. blattae. 
A second l a ~ f o r m  female T. blattae has been collected from the specimen of P. 
angustipennis which yielded the type specimen. These specimens resemble the first 
described Tetrapolipus, Tetrapolipus batocerae (Berlese, 1910, 1911). When adult females 
of T. blattae are found, they will probably have two legs as does T. oudemansi. Rather 
than proliferating more new genera, I choose to leave both species with the other species 
of Tetrapolipus in which lamiform females have very long chelicerae. 
LARVlFORM FEMALE: (Fig. 6). Idiosoma 269 pm long, 181 prn wide. Gnathosoma 
90pm long, 78 pm wide; ventral gnathosomal setae slender, more than 112 width of 
5
Husband: A New Species of Podapolipid Mite, and a Redescription of Tetrapo
Published by ValpoScholar, 1978
98 THE GREAT LAKES ENTOMOLOGIST Vol. 11, No. 2 
Fig. 5. T. oudemansi n.sp. A. Venter of adult female. B. Dorsum of leg I. C. Venter of 
leg I. 
Table I .  Leg chaetotaxy of Tarsopolipus oudemansi 
Leg 1 1 0-1 1 0  0 1- 1 2 1 1 1 1-1 3 
Leg 11 0 0-0 1 0 0  1- l o  1 0 0 1 2-1 1 
Leg 111 0 0-0 0 1-0 1 0 --- 0 0 
0 0 2 2-1 2 
Larviform Female 
Leg I 1 0-1 1 
1 0 0  
1 
1 2 0  1 2 0  
1 2 
0 2 Leg I1 1-0 
0 1 0 0   1 1 0  1 1-1 1 
Leg 111 0 0-0 
0 1 0 0  1 I 1 1 0   
1 4 - 1  
gnathosoma; dorsal gnathosomal setae more than 112 width of gnathosoma; chelicerae 
148 pm long. Propodosoma with three pairs of setae, posterior pair longer than 112 width 
of idiosoma. Metapodosomal plates 1 & 2 partially fused, three pairs of setae. 
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THE GREAT LAKES ENTOMOLOGIST 
Fig. 6. T. blattae (Oudemans 191 1) Dorsum of larviform female. 
Opisthosomal plate 1 with a pair of long thick setae, Opisthosomal plate 2, ventral, with 
two pairs of setae; lateral pair moderately long and thick, medial pair longer than width 
of idiosoma Coxae I, I1 fused, separated from coxae 111; coxae 111 separated medially, 
each coxal plate with a single short slender setum. No tibial spines. Tarsus I solenidion 
(w) equal to width of tarsus in one specimen, shorter in the second specimen. Tibia1 
solenidion (w) about equal to the width of the tibia. 
DISCUSSION 
The larviform females of T. blattae and T. oudernansi have very long chelicerae, well 
developed palpi, partial or complete fusion of metapodosomal plates I and 111, conspicu- 
ous caudal assessory setae, and both are parasites of Panesthia angustipennis. 
Many of the setae on the idiosoma of T. oudemansi are shorter than in T. blattae. T. 
oudemansi lacks solenidia on tarsus and tibia I. T. blattae was collected on the east coast 
of Java while T. oudemansi was collected on Luzon in the Philippines. 
7
Husband: A New Species of Podapolipid Mite, and a Redescription of Tetrapo
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100 THE GREAT LAKES ENTOMOLOGIST Vol. 11,No. 2 
The specimens of Tetrapolipus from the Leiden Museum from Periplaneta australasiae 
are probably those viewed by Vitzthum (1943). Vitzthum reports T. blattae from P. 
australasiae collected from Java. These mites have four legs in the adult female and 
resemble Tetrapolipus in other respects. However, the aedeagus is unique in originating 
more forward and extending more forward than does the aedeagus of other Tetrapolipus. 
The genus Tetrapolipus and those related mites in which adult females have two pairs 
of legs have been discussed by Regenfuss (1973) and Feldman-Muhsam (1977). Tetra- 
polipus includes mites in which adult females have only one pair of legs if one includes 
Coccipolipus with Tetrapolipus. Due to differences in all three stages and particularly the 
smaller chelicerae of larviform females, I prefer to continue to refer to Coccipolipus as a 
separate genus. Coccipolipus has adult females with either two or four legs. As 
Feldman-Muhsam (1977) suggests, in most species considered Tetrapolipus the aedeagus 
at least originates at or near the anterior border of the metapodosoma. Genera which 
have the characteristic aedeagal position and very long chelicerae include Tetrapolipus, 
Podapolipoides, Rhynchopolipus, Bakerpolipus and Stign~acatus. Rhynchopolipus and 
Stigmacarus are associated with the weevil family Curculionidae, Podapolipoides has been 
found only on grasshoppers, and Bakerpolipus has been found on cockroaches (Blaberi- 
dae). Tetrapolipus, sensu stnctu, has been found on Cerambycidae, Curculionidae and on 
four species of cockroaches. It is likely that the genus Tetrapolipus may eventually be 
restricted to only those mites from the beetle families. However, with only seven species 
(including three undescribed), there is not sufficient material for restructuring the generic 
concept at this time. 
ACKNOWLEDGMENTS 
I wish to thank Dr. Richard Crang and Martha Bushlow of Bowling Green State 
University for providing help with electron microscopy; the staff of the Leiden Museum 
of Natural History for loaning type specimens of mites as well as a number of 
cockroaches from Java; and Dr. David Rentz of the Academy of Natural Sciences of 
Philadelphia for loaning a large number of P. angustipennis. 
LITERATURE CITED 
Berlese, A. 1910. Lista di nuove specie e nuove generi di Acari. Redia, 6:270-272. 
. 19 11. Acarorum species movae quindecim. Redia 7:429435. 
Feldman-Muhsam, B. and Y. Havivi. 1977. Stignwcarus lukoschusi, new genus and new 
species (Acarina: Podapolipidae) from beetles in Italy. Acarologia 18:545-552. 
Hammen, L. Van der. 1970. Tarsonemoides limbratus nov. spec., and the systematic 
position of the Tarsonemida (Acarida). 2001. Verh. 108:3-35. 
Naudo, M. H. 1967. Contribution B l'dtude des acariens parasites dYorthoptPres mala- 
gaches. I. Le genre Podapolipus (Podapolipidae): diagnoses prlliminaires d'especes 
nouvelles. Acarologia 9: 30-54. 
Oudemans, A. C. 191 1. Acarologische aanteekenigen XXXVIII. Entomol. Bericht., 3:187. 
. 1912. Tijds. Ent. 55:XXVI-XXX. 
7 1915. Notizen Uber Acari, XXIII. Riehe Archiv Naturgesch. 81A:4144. 
. 193 1. Acarologische aanteekenigen CXI. Entomol. Bericht. 8: 327. 
Regenfuss, H. 1968. Untersuchungen zur morphologie, systematic and 6kologie der 
Podapolipidae (Acarina: Tarsonemini). A. Wiss. Zool., 177: 182-282. 
. 1973. Beinreduction and verlagerung des kopulationsapparates in der 
milbenfamilie Podapolipidae, ein beispiel ftir verhaltensgesteuerte evolution mor- 
phologischer strukteren. 2. f. zool. Systematik u. Evol. 11:173-195. 
. 1974. Neue ketoparasitische arten der familie Podapolipidae (Acari: 
Tarsonemina) von carabiden. Mitt Hamburg. Zool. Mus. Inst. 71:147-163. 
Vitzthum, H. G. 1943. Acarina. In Bronn's, Klassen and Ordnungen des Tierreichs. 5(4. 
Abt: 5). 
8
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Valparaiso University

The Great Lakes Entomologist Volume 11 Number 2 - Summer 1978 Number 2 - Summer 1978 Article 4 June 1978 A New Species of Podapolipid Mite, and a Redescription of Tetrapolipus Blattae (Oudemans) (Acarina: Podapolipidae) Robert W. Husband Adrian College Follow this and additional works at: https://scholar.valpo.edu/tgle  Part of the Entomology Commons Recommended Citation Husband, Robert W. 1978. "A New Species of Podapolipid Mite, and a Redescription of Tetrapolipus Blattae (Oudemans) (Acarina: Podapolipidae)," The Great Lakes Entomologist, vol 11 (2) Available at: https://scholar.valpo.edu/tgle/vol11/iss2/4 This Peer-Review Article is brought to you for free and open access by the Department of Biology at ValpoScholar. It has been accepted for inclusion in The Great Lakes Entomologist by an authorized administrator of ValpoScholar. For more information, please contact a ValpoScholar staff member at scholar@valpo.edu. 1978 THE GREAT LAKES ENTOMOLOGIST 9 3 A NEW SPECIES OF PODAPOLlPlD MITE, AND A REDESCRIPTION OF TETRAPOLIPUS BLATTAE (OUDEIWANS) (ACARINA: PODAPOLIPIDAE) Robert W.  usb band' ABSTRACT A description of a new species of podapolipid mite, Tetrapolipus oudemansi, associated with the Philippine cockroach, Panesthia angustipennis (Illiger) is presented. Tetrapolipus blattae (Oudemans 19 11) collected from P. angustipennis from Java is redescribed. Tetrapolipus blattae (Oudemans 191 l), described from a single larviform female, was placed by Oudemans in the genus Pediculoides. No mention was made of this species when the family Podapolipidae was erected by Oudemans (1931). Vitzthum (1943) first used the combination Tetrapolipus blattae and reports the species from both Panesthia angustipennis and Periplaneta australasiae collected from Java. In an attempt to  find males and adult females, the specimens of cockroaches examined by Oudemans were reexamined and an additional specimen was found. A specimen of P. angustipennis from the Philippines yielded a new species here described as Tetrapolipus oudemansi in tribute to the numerous contributions to  acarology made by Dr. Oudemans. Tetrapolipus blattae (Oudemans 191 1) is redescribed and compared with T. oudemansi. An undescribed species of Tetrapolipus from P. australasiae from Java is briefly mentioned as it is probably the one which lead Vitzthum (1943) to change Pediculoides blattae to Tetrapolipus blattae. MATERIALS AND METHODS Pinned cockroaches were placed in individual beakers of distilled water and heated to approximately 50°C. for one half-hour. They were removed, placed over a Petri dish and washed with 70% alcohol administered from a tube inserted in a plastic squeeze bottle. Mites were removed from the Petri dish and placed in 70% alcohol in vials for storage. Some mites were placed on slides in Hoyer's mounting medium and placed on a slide warmer for a minimum of 24 hours. Mites were examined and drawn with the aid of a Wild-Heerbrug phase contrast microscope with a drawing attachment. Some specimens were placed on double stick tape on aluminum studs, gold coated, and examined with a Hitachi HHS-2R scanning electron microscope at  20 kV. Terms used by van der Hammen (1970) for Tarsonemidae and modified by Regenfuss (1974) for Podapolipidae have been incorporated, in part. Tetrapolipus oudemansi new species (Figs. 1-5) MALE: (Figs. 1, 2). Idiosoma 112 pm long, 92 pm wide. Gnathosoma: 30 pm long, 23 pm wide; gnathosomal setae very short, palps relatively well developed. Chelicerae 13  pm long. Propodosoma with three pairs of short setae; aedeagus located in anterior 314 of metapodosoma. Each coxal plate with a single short seta; coxae 111 in contact medially. One spine on tibia I, 2 spines on tibiae 11, 111. Two dorsal blunt setae on tarsus I, no solenidion on tibia I. Fourth pair of legs absent. Leg chaetotaxy as in Table 1. l ~ e ~ a r t m e n t  of Biology, Adrian College, Adrian, M I  49221. 1Husband: A New Species of Podapolipid Mite, and a Redescription of TetrapoPublished by ValpoScholar, 1978THE GREAT LAKES ENTOMOLOGIST Vol. 11, No. 2 Fig. 1. T. oudemansi n-sp. Dorsum of male. LARVlFORM FEMALE: (Figs. 3, 4). Idiosoma 148 Mm long, 105 pm wide. Gnathosoma: 40 pm long, 49 pm wide; ventral gnathosomal setae less than 114 width of gnathosoma; dorsal gnathosomal setae ca 113 width of gnathosoma; chelicerae 61 pm long. Propodo- soma broader than long with three pairs of setae, posterior pair longest. Metapodosomal plates 1 & 2 partially fused, three pairs of short setae. Opisthosomal plate 1 with 1 pair of short setae. Opisthosomal plate 2, ventral, with two pairs of setae; lateral pair short, medial pair more than 112 width of idiosoma. Coxae I, I1 fused, separated from coxae 2The Great Lakes Entomologist, Vol. 11, No. 2 [1978], Art. 4https://scholar.valpo.edu/tgle/vol11/iss2/4THE GREAT LAKES ENTOMOLOGIST Fig. 2. T. oudemansi n.sp. Venter of male. 111; coxae 111 separated medially, each coxal plate with a single short setum. No tibia1 spines. Two dorsal blunt setae on tarsus I, no solenidion on tibia I. Leg chaetotaxy as in Table I. FEMALE: (Fig. 5). Idiosoma 268 pm long, 195 pm wide. Gnathosoma 49 pm long, 35 pm wide; Chelicerae 42 pm long. Idiosoma without plates or setae. Posterior ventral genital opening extends 113 the distance of the ventral surface. One pair of legs; tarsi with three setae, a medial stout spine and a terminal sucker. 3Husband: A New Species of Podapolipid Mite, and a Redescription of TetrapoPublished by ValpoScholar, 1978THE GREAT LAKES ENTOMOLOGIST Vol. 11, No. 2 Fig. 3. T. oudemmsi n.sp. Dorsum of lamiform female. EGG: 177 pm long, 82 pm wide; smooth, oval. Type data: All collected from Panesthia angustipennis (Illiger) (Orthoptera: Blaberi- dae). Holotype, male, Balbalaan, Kalinga, Luzon, Philippines; March, 1918, by W. Boettcher; allotype, larviform female, same data. Paratypes: 11 adult females, 9 lawiform females, 3 males, 2 eggs. Holotype, allotype, and adult female paratype deposited in Rijksmuseum van Natuurlijke Historie, Leiden, Netherlands. Additional male, larviform female, female, and egg paratypes deposited in the Acarology Collection, Biology Department, Adrian College, Adrian, Michigan. Tetrapolipus blattae (Oudeman s) (Fig. 6) Pediculoides blattae in Oudemans (1 91 1, 191 2, 19 15): as Tetrapolipus blattae in Vitzthum (1943), Naudo (1967), Regenfuss (1968). Type locality: from Panesthia angustipennis (Illiger) (Orthoptera: Blaberidae), East Java, Coll. MacGillavry. 4The Great Lakes Entomologist, Vol. 11, No. 2 [1978], Art. 4https://scholar.valpo.edu/tgle/vol11/iss2/4THE GREAT LAKES ENTOMOLOGIST Fig. 4 .  T. oudemansi n.sp. Venter of larviform female. Vitzthum reported T. blattae from Periplaneta australasiae. This report is probably in error as specimens collected from P. australasiae from Java and located in the Leiden Museum yielded a new species of Tetrapolipus which is not closely related to T. blattae. A second l a ~ f o r m  female T. blattae has been collected from the specimen of P. angustipennis which yielded the type specimen. These specimens resemble the first described Tetrapolipus, Tetrapolipus batocerae (Berlese, 1910, 1911). When adult females of T. blattae are found, they will probably have two legs as does T. oudemansi. Rather than proliferating more new genera, I choose to leave both species with the other species of Tetrapolipus in which lamiform females have very long chelicerae. LARVlFORM FEMALE: (Fig. 6). Idiosoma 269 pm long, 181 prn wide. Gnathosoma 90pm long, 78 pm wide; ventral gnathosomal setae slender, more than 112 width of 5Husband: A New Species of Podapolipid Mite, and a Redescription of TetrapoPublished by ValpoScholar, 197898 THE GREAT LAKES ENTOMOLOGIST Vol. 11, No. 2 Fig. 5. T. oudemansi n.sp. A. Venter of adult female. B. Dorsum of leg I. C. Venter of leg I. Table I .  Leg chaetotaxy of Tarsopolipus oudemansi Leg 1 1 0-1 1 0  0 1- 1 2 1 1 1 1-1 3 Leg 11 0 0-0 1 0 0  1- l o  1 0 0 1 2-1 1 Leg 111 0 0-0 0 1-0 1 0 --- 0 0 0 0 2 2-1 2 Larviform Female Leg I 1 0-1 1 1 0 0  1 1 2 0  1 2 0  1 2 0 2 Leg I1 1-0 0 1 0 0   1 1 0  1 1-1 1 Leg 111 0 0-0 0 1 0 0  1 I 1 1 0   1 4 - 1  gnathosoma; dorsal gnathosomal setae more than 112 width of gnathosoma; chelicerae 148 pm long. Propodosoma with three pairs of setae, posterior pair longer than 112 width of idiosoma. Metapodosomal plates 1 & 2 partially fused, three pairs of setae. 6The Great Lakes Entomologist, Vol. 11, No. 2 [1978], Art. 4https://scholar.valpo.edu/tgle/vol11/iss2/4THE GREAT LAKES ENTOMOLOGIST Fig. 6. T. blattae (Oudemans 191 1) Dorsum of larviform female. Opisthosomal plate 1 with a pair of long thick setae, Opisthosomal plate 2, ventral, with two pairs of setae; lateral pair moderately long and thick, medial pair longer than width of idiosoma Coxae I, I1 fused, separated from coxae 111; coxae 111 separated medially, each coxal plate with a single short slender setum. No tibial spines. Tarsus I solenidion (w) equal to width of tarsus in one specimen, shorter in the second specimen. Tibia1 solenidion (w) about equal to the width of the tibia. DISCUSSION The larviform females of T. blattae and T. oudernansi have very long chelicerae, well developed palpi, partial or complete fusion of metapodosomal plates I and 111, conspicu- ous caudal assessory setae, and both are parasites of Panesthia angustipennis. Many of the setae on the idiosoma of T. oudemansi are shorter than in T. blattae. T. oudemansi lacks solenidia on tarsus and tibia I. T. blattae was collected on the east coast of Java while T. oudemansi was collected on Luzon in the Philippines. 7Husband: A New Species of Podapolipid Mite, and a Redescription of TetrapoPublished by ValpoScholar, 1978100 THE GREAT LAKES ENTOMOLOGIST Vol. 11,No. 2 The specimens of Tetrapolipus from the Leiden Museum from Periplaneta australasiae are probably those viewed by Vitzthum (1943). Vitzthum reports T. blattae from P. australasiae collected from Java. These mites have four legs in the adult female and resemble Tetrapolipus in other respects. However, the aedeagus is unique in originating more forward and extending more forward than does the aedeagus of other Tetrapolipus. The genus Tetrapolipus and those related mites in which adult females have two pairs of legs have been discussed by Regenfuss (1973) and Feldman-Muhsam (1977). Tetra- polipus includes mites in which adult females have only one pair of legs if one includes Coccipolipus with Tetrapolipus. Due to differences in all three stages and particularly the smaller chelicerae of larviform females, I prefer to continue to refer to Coccipolipus as a separate genus. Coccipolipus has adult females with either two or four legs. As Feldman-Muhsam (1977) suggests, in most species considered Tetrapolipus the aedeagus at least originates at or near the anterior border of the metapodosoma. Genera which have the characteristic aedeagal position and very long chelicerae include Tetrapolipus, Podapolipoides, Rhynchopolipus, Bakerpolipus and Stign~acatus. Rhynchopolipus and Stigmacarus are associated with the weevil family Curculionidae, Podapolipoides has been found only on grasshoppers, and Bakerpolipus has been found on cockroaches (Blaberi- dae). Tetrapolipus, sensu stnctu, has been found on Cerambycidae, Curculionidae and on four species of cockroaches. It is likely that the genus Tetrapolipus may eventually be restricted to only those mites from the beetle families. However, with only seven species (including three undescribed), there is not sufficient material for restructuring the generic concept at this time. ACKNOWLEDGMENTS I wish to thank Dr. Richard Crang and Martha Bushlow of Bowling Green State University for providing help with electron microscopy; the staff of the Leiden Museum of Natural History for loaning type specimens of mites as well as a number of cockroaches from Java; and Dr. David Rentz of the Academy of Natural Sciences of Philadelphia for loaning a large number of P. angustipennis. LITERATURE CITED Berlese, A. 1910. Lista di nuove specie e nuove generi di Acari. Redia, 6:270-272. . 19 11. Acarorum species movae quindecim. Redia 7:429435. Feldman-Muhsam, B. and Y. Havivi. 1977. Stignwcarus lukoschusi, new genus and new species (Acarina: Podapolipidae) from beetles in Italy. Acarologia 18:545-552. Hammen, L. Van der. 1970. Tarsonemoides limbratus nov. spec., and the systematic position of the Tarsonemida (Acarida). 2001. Verh. 108:3-35. Naudo, M. H. 1967. Contribution B l'dtude des acariens parasites dYorthoptPres mala- gaches. I. Le genre Podapolipus (Podapolipidae): diagnoses prlliminaires d'especes nouvelles. Acarologia 9: 30-54. Oudemans, A. C. 191 1. Acarologische aanteekenigen XXXVIII. Entomol. Bericht., 3:187. . 1912. Tijds. Ent. 55:XXVI-XXX. 7 1915. Notizen Uber Acari, XXIII. Riehe Archiv Naturgesch. 81A:4144. . 193 1. Acarologische aanteekenigen CXI. Entomol. Bericht. 8: 327. Regenfuss, H. 1968. Untersuchungen zur morphologie, systematic and 6kologie der Podapolipidae (Acarina: Tarsonemini). A. Wiss. Zool., 177: 182-282. . 1973. Beinreduction and verlagerung des kopulationsapparates in der milbenfamilie Podapolipidae, ein beispiel ftir verhaltensgesteuerte evolution mor- phologischer strukteren. 2. f. zool. Systematik u. Evol. 11:173-195. . 1974. Neue ketoparasitische arten der familie Podapolipidae (Acari: Tarsonemina) von carabiden. Mitt Hamburg. Zool. Mus. Inst. 71:147-163. Vitzthum, H. G. 1943. Acarina. In Bronn's, Klassen and Ordnungen des Tierreichs. 5(4. Abt: 5). 8The Great Lakes Entomologist, Vol. 11, No. 2 [1978], Art. 4https://scholar.valpo.edu/tgle/vol11/iss2/4

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A New Species of Podapolipid Mite, and a Redescription of Tetrapolipus Blattae (Oudemans) (Acarina: Podapolipidae)

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