Gutierrez, Jean

Schicha, E.

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J. ìlust. ent. Soc., 1982,21: !37-141~ 137 
TWO NEW SPECIES OF TENUIPALPUS DONNADIEU FROM NEW SOUTH 
WALES (ACARI: TENUIPALPIDAE) 
J. GUTIERREZ and E. SCHICHA 
OBce de la Recherche Scientgque et Technique Outre-Mer, B.P. A5, Nouméa, New Caledonia. 
Biological and Chemical Research Institute, New South Wales Department of Agriculture, Rydalmere, N.S. W. I I 2116. 
1, Abstract 
Tenuipalpus banksiae and T. grevilleae spp. n. are described and illustrated from the native Australian 
Banksia spinulosa Sm. and Grevillea sericea (Sm.) (Proteaceae). 
Introduction 
Tenuipalpus Donnadieu was revised by Meyer-Smith (1979) to include the genera 
Tenuipalpus sensu stricto and Colopalpus Pritchard and Baker. As the mites recorded 
by Womersley (1940, 1941) belong in Brevipalpus Donnadieu, only 3 species of 
Tenuipalpus were known from Australia. T. womersleyi Pritchard and Baker 
(quadrisetosus group) was originally collected in Queensland on Leptospermum sp. and 
later by Collyer (1973b) in New Zealand on L.  ericoides A. Rich. T. pacijicus Baker 
(caudatus group), a widespread pest of orchids (England, Holland, Germany, 
California, Florida, Indonesia and the Philippines) was recorded on Orchidaceae and 
on Platycerium sp. in Australia by Baker (1945), Pritchard and Baker (1958) and 
Manson (1967). T. mansoni (Collyer) (caudatus group) was intercepted entering New 
Zealand on leaves of Pomaderris sp. from Australia (Collyer 1973a). 
The 2 new species described below belong to the caudatus group (3 pairs of 
dorsocentral hysterosomal setae plus 3 pairs of non-flagellate and 1 pair of whip-like 
caudolateral hysterosomal setae). 
All measurements are in micrometres ((pm), the body size being measured from all 
specimens, whereas setal lengths are from the holotype and paratype males only. 
Depositories are abbreviated: BCRI, Biological and Chemical Research Institute, 
Rydalmere; MHNP, Museum d'Histoire Naturelle de Paris; ORSTOM, Office de la 
Recherche Scientifique et Technique Outre-Mer, Paris. 
Tenuipalpus banksiae sp. n. (Figs 1-5) 
Types.-NEW SOUTH WALES: holotype Ç! and 20 paratypes on Banksia spinulosa Sm., Woolwich, 
13.i.1980, J. Gutierrez and E. Schicha. Holotype and 2 Ç! and 2 3 paratypes in BCRI; 1 Ç! and 1 d paratype in 
MHNP; 11 Ç! and 3 3 paratypes in ORSTOM. 
Female 
Dorsum.-Length of idiosoma 265-290, including gnathosoma 295-3 15; width of idiosoma 130-140. 
Idiosoma almost oval; podosoma slightly differentiated from opisthosoma. Propodosoma with loose 
polygonal cells. Twelve pairs of serrated setae, all on tubercles and some setae very long. Second pair of 
propodosomal setae 180 long, directed anteriorly and up. All 3 pairs of dorsocentral hysterosomal setae 
directed posteriorly and up, with second pair 125 the longest. First pair of dorsolateral hysterosomal setae 
130, longer than first, second and fourth pairs of caudolateral hysterosomal setae. Third pair of caudolateral 
hysterosomal setae very long and whip-like (Fig. 1). 
Venter.-Ventral and genital plates indistinctly separated. All setae smooth. Podosoma with 1 pair of 
short anterior medioventral setae and 1 pair of long posterior medioventral setae. Two pairs of relatively 
long genital setae; 2 pairs of very short anal setae (Fig. 2). 
-w' 
1 
( 
I 
I 
Gnuthosoma.-Palpus 2-segmented, with single slightly serrate terminal seta (Fig. 3). 
Legs.Setae and solenidia onpodomeres of legs1 to IV coxae2-2-1-1, trochantera 1-1-1-1, femora4-4- 
I 
9 2-1, genua 2-2-0-0, tibiae 3-3-3-3, tarsi 8-8-5-5. 
Male 
Chaetotaxy resembling that of female, but setae relatively shorter, with pqppd ptqmgfntaire 
dorsocentral hysterosomal setae very much shorter. Second pair of propodoso al e d 25 lo p. PS 
S.RmS.T,Qatd. 
Dorsum-Length of idiosoma 204-207, including gnathosoma 245-258; width of idiosoma 92-100. 
N" : 
138 J. GUTIERREZ and E. SCHICHA 
dorsolateral hysterosomal setae 1 10 long. Dorsocentral hysterosomal setae shorter than distance between 
bases of setae of 2 successive pairs (Fig. 4). 
Venter.-Three pairs of genitoanal setae as long as setae on coxae IV (Fig. 5). 
Field recognition 
mediodorsal ridge. 
Adults whitish, living on undersides of leaves (along midrib). Eggs yellow, oblong, with longitudinal 
I \  
FIGS 1-3-Tenuipalpus banksiae sp. n., female: (1) dorsal aspect; (2) ventral aspect; (3) palpus enlarged. 
Tenuipalpus grevilleae sp. n. (Figs 6-10) 
Types.-NEW SOUTH WALES: Holotype ? and 8 paratypes on Grevillea sericea (Sm.), Woolwich, 
paratype in BCRI; 1 $paratype in MHNP; 5 13.i.1980, J. Gutierrez and E. Schicha. Holotype and 1 ? and 1 
9 paratypes in ORSTOM. 
Female 
Dorsum-Length of idksoma 292-303, including gnathosoma 31 5-330; width of idiosoma 123-1 38. 
Idiosoma elongate-ovate;with fine striae laterally and oval patterns mediolaterally; podosoma not strongly 
differentiated from opisthosoma. Twelve pairs of relatively long, subspatulate setae, all set on small tubercles 
except for third pair of caudolateral hysterosomal setae which is very long and flagelliform. Second pair of 
propodosomal setae 50 long, directed anteriorly and up. All 3 pairs of dorsocentral hysterosomal setae 
directed posteriorly and up, with first pair 55 the longest, reaching to base of second pair. First pair of 
caudolateral hysterosomal setae as long as distance between its base and base of second pair, which in turn is 
longer than the distance between its base and base of third pair (Fig. 6).  
Venter.-Ventral and genital plates indistinctly separated. All setae smooth. Podosoma with 1 pair of 
short anterior medioventral setae and 1 pair of long posterior medioventral setae. Two pairs of nearly equal 
genital setae; inner pair of anal setae much shorter than outer pair (Fig. 7). 
Gnuthosoma.-Palpus I-segmented, with single slightly serrate terminal seta (Fig. 8). 
Legs.-Setaeand solenidiaonpodomeresoflegs1 toIV: coxae 1-1-1-1, trochantera 1-1-2-1; femora4-4- 
2-0, genua 3-3-1-1, tibiae 4-4-3-3, tarsi 8-8-5-5. . 
1 
P 
1 
I 
1 
I 
E 
139 NEW SPECIES OF TENUIPALPIDAE FROM N.S.W. 
FIGS 4-5-Tenuipalpus banksiae sp. n., male: (4)  dorsal aspect; (5)  ventral aspect. 
/ 
FIGS 6-8-Tenuipalpus grevilleae sp. n., female: (6) dorsal aspect; (7) ventral aspect; (8) palpus enlarged. 
140 J. GUTIERREZ and E. SCHICHA 
Male 
Dorsum.-Length of idiosoma 246, including gnathosoma 276; width of idiosoma 115. Chaetotaxy 
resembling that of female, but setae shorter and first pair of dorsocentral hysterosomal setae not reaching 
base of second pair (Fig. 9). 
Venter.-Three pairs of genitoanal setae as long as setae on coxae IV (Fig. 10). 
Field recognition I 
4 
banksiae. 
Adults orange-yellow, living on undersides of leaves. Eggs yellowish, similar in shape to those of T. 
Discussion 
In Meyer-Smith's (1979) key to the world species of Tenuipalpus, only 6 species of 
the caudatus-group show 3 pairs of non-flagellate caudolateral setae and 1 pair of 
posterior medioventral setae. 
In 3 of these, the dorsal integument is not reticulate: T. lalbaghensis 
Channabasavanna and Lakkundi, T. proteae Meyer and T.  matthyssei Pritchard and 
Baker. In the other 3, the dorsal integument is densely reticulate: T. mansoni (Collyer), 
T. rhusi Meyer and T. oribiensis Meyer. The 2 new species described above are different. 
T. grevilleae has a striated dorsal integument and, dorsally, long setae on the 
propodosoma and hysterosoma. T. bunksiue has a dorsal integument with loose 
reticulations and long dorsal setae. 
These observations and the descriptions of Pritchard and Baker (1958), Collyer 
(1973a), Channabasavanna and Lakkundi (1977) and Meyer-Smith (1979) allow this 
subgroup to be keyed. Y 
F 
Key to females of world species of caudatus group (genus Tenuipalpus) with 3 pairs of 
non-flagellate caudolateral setae and 1 pair of posterior medioventral setae 
1, Dorsal integument not reticulate . . .. .. .. .. .. .. 2 
Dorsal integument reticulate . . .. .. .. .. .. .. 5 
NEW SPECIES OF TENUIPALPIDAE FROM N.S.W. 141 
2. Dorsal integument smooth, hysterosoma with a prominent projection 
anterior to coxa III . . .. .. .. .. .. . . lalbaghensis 
Dorsal integument with striae . . .. .. .. I .  .. 1 .  3 
3. Propodosomal setae minute . . .. .. .. .. .. proteae 
Propodosomal setae nearly as long or longer than distances between 
bases of consecutive setae . . .. .. .. .. .. .. 4 
4. Dorsocentral hysterosomal setae minute . . .. .. . . matthyssei 
Dorsocentral hysterosomal setae long and subspatulate . . . . grevilleae 
5. Dorsal integument loosely reticulate, dorsal setae long . . . . banksiae 
Dorsal integument densely reticulate, dorsal setae short . . .. .. 6 
6.  Dorsal body setae setiform. . .. .. .. .. .. . . mansoni 
7. Dorsal body setae lanceolate . . .. .. .. * .  . . oribiensis 
Dorsal body setae spatulate . . .. .. .. .. .. .. rhusi 
Dorsal body setae lanceolate or spatulate . . .. .. .. .. 7 
References 
BAKER, E. W. (1945).-Mites,of the genus Tenuipalpus (Acarina: Trichadenidae). Proc. ent. Soc. Wash. 47: 
CHANNABASAVANNA, G. P. and LAKKUNDI, N. H. (1977).-Tenuipalpus lalbaghensis (Acarina: Tenuipal- 
COLLYER, E. (1973a).-Two new species of the genus Colopalpus (Acari: Tenuipalpidae). N.Z.  JI Sci. 16 
COLLYER, E. (1973b).-New species of the genus Tenuipalpus (Acari: Tenuipalpidae) from New Zealand, 
MANSON, D. C. M. (1967).-Mites of the families Tenuipalpidae and Tetranychidae intercepted entering 
MEYER-SMITH, M. K. P. (1979).-The Tenuipalpidae (Acari) of Africa with keys to the world fauna. 
PRITCHARD, A. E. and BAKER, E. W. (1958).-The false spider mites (Acarina: Tenuipalpidae). Univ. Cal$ 
WOMERSLEY, H. (1940).-Studies in Australian Acarina Tetranychidae and Trichadenidae. Trans. R. Soc. S. 
WOMERSLEY, H. (194l).-Revisional notes on the Australian species of Tenuipalpus (Acarina, Tetra- 
[Manuscript received 12 January 1981. Revised 23 April 1981.1 
33-38. 
pidae), a new species from southern India. Indian J.  Acar. 1: 19-22. 
529-532. 
with a key to the world fauna. N.Z. JI Sci. 1 6  915-955. 
New Zealand from overseas. N.Z. JI Sci. 10 664-674. 
Entomology Mem. Dep. agric. tech. Serv. Repub. S. Afr. SO: 1-135. 
Publs Enì. 14: 175-274. 
A W .  64: 233-265. 
nychidae). Trans. R. Soc. S. Ausì. 6 5  42-43. 
P 


Two new species of Tenuipalpus Donnadieu from New South Wales (Acari : Tenuipalpidae)

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