(excerpt)
This paper is comprised of the description of a new species of Neelides Caroli (1912) recovered from moss. It becomes only the third described species of the genus. Specimens were recovered by a sugar flotation-centrifugation method (Jenkins, 1964), mounted, and characterized with the aid of a camera lucida. The holotype, some paratypes, and five specimens in 95% ethyl alcohol will be deposited in the Entomology Museum, Michigan State University, East Lansing, Michigan, 48824

Bernard, Ernest C

English

Valparaiso University

The Great Lakes Entomologist Volume 8 Number 4 - Winter 1975 Number 4 - Winter 1975 Article 2 December 1975 A New Species of Neelides (Collembola: Neelidae) from the United States Ernest C. Bernard Michigan State University Follow this and additional works at: https://scholar.valpo.edu/tgle Part of the Entomology Commons Recommended Citation Bernard, Ernest C. 1975. "A New Species of Neelides (Collembola: Neelidae) from the United States," The Great Lakes Entomologist, vol 8 (4) Available at: https://scholar.valpo.edu/tgle/vol8/iss4/2 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. 1975 THE GREAT LAKES ENTOMOLOGIST 183 A NEW SPECIES OF NEELIDES (COLLEMBOLA: NEELIDAE) FROM THE UNITED STATES1 Ernest C. ~ e r n a r d ~ This paper is comprised of the description of a new species of Neelides Caroli (1912) recovered from moss. It becomes only the third described species of the genus. Specimens were recovered by a sugar flotation-centrifugation method (Jenkins, 1964), mounted, and characterized with the aid of a camera lucida. The holotype, some paratypes, and five specimens in 95% ethyl alcohol will be deposited in the Entomology Museum, Michigan State University, East Lansing, Michigan, 48824. Neelides snideri, new species Coloration.-Specimens in alcohol white with a varying amount of black speckling on the head, thorax, and abdomen (Fig. l ) , thus giving them a grayish appearance. Speckles generally absent from the appendages. The speckles of specimens treated with NaOH disperse to give a lavender color. Specimens observed under dark-field illumination appear to have brick-red speckling. Morphological Description. -Length 176 to 277 pm with a mean of 234 pm (n = 15). Head hypognathous, eyes absent. Antennae only about half the length of the head, the ratio of segments 1:II:III:IV as 10: 11:17:15. Ant. 111 with subapical sensory area composed of a pair of ovate sense rods flanked on either side by a long sensilla (Fig. 6). Ventrad of the outer sensilla is a tiny spine set in a shallow depression. Ant. IV with four sensory setae, one of these sIightly thicker than the others; two thin subterminal sensillae present; no terminal sense organ or papilla seen. Labrum (Fig. 2) quadrate with three or four apparently flattened and furcate setae; subapically, labrum with a transverse dorsal row of extremely fine filaments extending forward and curving ventrally. Proximally, labrum with a median seta, and on either side, four setae on an irregular tubercle. Mandible (Fig. 3) with strong molar area and five to seven apical teeth, the proximal tooth on the shaft sometimes bifurcate. Maxilla (Fig. 4) well-developed, elongate, with five recurved teeth on the inner edge and a long lamellar structure with about eight ridges running proximally with the fifth inner tooth at its apex; dorsally, a five-toothed process; ventrally, two large transversely ridged teeth; apical part of maxilla with two comblike rows of fine setae, a dorsal subapical row recurved ventrally, and an apical row recurved dorsally. Prothorax reduced. Femur of front leg with a short, thick, curving seta on the inner side. Tenent hairs absent. Ungues of front and middle legs (Fig. 9) long and fairly thin, with two basal lateral teeth, and usually without an inner tooth; when present, inner tooth very small and difficult to see. Unguiculi of the fore- and middle legs only half the length of the unguis, with a broad inner lamella, untoothed. Unguis of the hind leg (Fig. 10) shorter and wider, with two basal lateral teeth but always without an inner tooth. Hind unguiculus lanceolate, nearly as large as unguis, very broad and without teeth. Ventral tube cylindrical (Fig. 7), the short vesicles smooth, body of the tube with 1 + 1 or 2 + 2 setae. Retinaculum without setae, the rami bidentate (Fig. 8). Furcula (Fig. 13) about one-third the length of the body without head. Ratio of the manubrium:dens:mucro as 8:13:8. Manubrium broader than long, with 3 + 3 setae dorsally. Dens divided into a short proximal part and a longer, thinner distal part; l Michigan Agricultural Experiment Station Journal Article No. 7120. 2~epar tment of Entomology, Michigan State University, East Lansing, Michigan 48824. Present address: Department of Plant Pathology and Plant Genetics, University of Georgia, Athens, Georgia 30602. 1Bernard: A New Species of Neelides (Collembola: Neelidae) from thePublished by ValpoScholar, 1975THE GREAT LAKES ENTOMOLOGIST Vol. 8 , No. 4 Figs. 1-8. Neelides snideri, n.sp. Fig. 1. Lateral view. Fig. 2. Dorsal view of lab run^. Fig. 3. Mandible. Fig. 4. Maxilla, dorsal view. Fig. 5 . Chaetotaxy of head, dorsal view, right side. Fig. 6. Antenna1 segments 111-IV. Fig. 7. Ventral tube. Fig. 8 . Retinaculum. 2The Great Lakes Entomologist, Vol. 8, No. 4 [1975], Art. 2https://scholar.valpo.edu/tgle/vol8/iss4/2THE GREAT LAKES ENTOMOLOGIST Flgs. 9-15. Neelides snideri, n.sp. Fig. 9. Claw of front leg. Fig. 10. Claw of hind leg. Fig. 11. Chaetotaxy of left side. Fig. 12. Forms of sensillae: a-d. body sensillae; e. clavate sensilla from Abd. 1 ; f. quill-like 'sensilla of sensory areas; g. subventral sensilla from near coxal bases. Fig.13. Right half of furcula, dorsal view. Fig. 14.Distal portion of mucrodens, ventral view. Fig. 15. Lateral profiles of mucrones. 3Bernard: A New Species of Neelides (Collembola: Neelidae) from thePublished by ValpoScholar, 1975186 THE GREAT LAKES ENTOMOLOGIST Vol. 8, No. 4 proximal part with one dorsal seta; distal part with two dorsal fanera-like setae and one ventral fanera medailly; one dorsal seta subapically; two lateral and three ventral fanerae apically; proximal fanera-like seta absent. Mucro (Fig. 13-15) tapering, both dorsal edges toothed, with 5-9 teeth. Sensory areas rudimentary, distinguishable by a weak circle around the seta, caused by a disruption of the cuticular granulation. Sensory areas present in the following places: on the head, anteromedially and behind the antennae (Fig. 5); on Th. 11, dorsomedially, sublaterally above the coxa; on Th. 111, subventrally above the coxa; Abd. I, laterally; and Abd. 111-IV, three laterally, arranged in a triangle (Fig. 11). Setae and sensillae sparse and short (Fig. 11); prothorax naked. Th. 11-111 and the abdomen with variously modified sensillae (Fig. 12), the most prominent of these being the three clavate sensillae of Abd. I, the relatively long sensillae near the coxae, and the quill-like sensillae of the sensory areas. Diagnosis.-N. snideri, n.sp., is similar in general characteristics to the other species of the genus, N. minutus (Folsom, 1901) and N. folsomi Caroli, 1912, but differs on a number of points: size minute, 176-277 pm [N. minutus, 269440 pm (Bonet, 1947); N. folsomi, 400 pm] ; hind unguiculus k g e (not so in the other species); mucro with 5-9 teeth (N. minutus, 10-12; N. folsomi, 10); proximal fanera-like seta of the dens absent (present in the other species). It is my pleasure to name this new species after the North American collembolist Dr. R. J. Snider. Collection Data.-April 13, 1974, the holotype and nine paratypes, and May 19, 1974, 19 additional specimens, all collected at Monahan Lake, Livingston County, Michigan, from various species of moss growing on soil or dead stumps, E. Bernard, collector. LITERATURE CITED Bonet, F. 1947. Monografia de la farnilia Neelidae (Collembola). Rev. Soc. Mex. Hist, Nat. 8:131-192. Caroli, E. 191 2. Collembola. 1. Su di un nuovo genere di Neelidae. Annuario Musee. Zool. della R. Univ. Napoli (N.S.) Suppl. Fauna degli Astroni. No. 4, p. 1-5. Folsom, J. W. 1901. Review of the Collembola genus Neelus and description of N. minutus n.sp. Psyche 9:219-222. Jenkins, W. R. 1964. A rapid centrifugal-flotation technique for separating nematodes from soil. Plant Dis. Rep. 48~692. 4The Great Lakes Entomologist, Vol. 8, No. 4 [1975], Art. 2https://scholar.valpo.edu/tgle/vol8/iss4/2

A New Species of \u3ci\u3eNeelides\u3c/i\u3e (Collembola: Neelidae) from the United States

ValpoScholar

The Great Lakes Entomologist 
Volume 8 
Number 4 - Winter 1975 Number 4 - Winter 
1975 
Article 2 
December 1975 
A New Species of Neelides (Collembola: Neelidae) from the 
United States 
Ernest C. Bernard 
Michigan State University 
Follow this and additional works at: https://scholar.valpo.edu/tgle 
 Part of the Entomology Commons 
Recommended Citation 
Bernard, Ernest C. 1975. "A New Species of Neelides (Collembola: Neelidae) from the United States," The 
Great Lakes Entomologist, vol 8 (4) 
Available at: https://scholar.valpo.edu/tgle/vol8/iss4/2 
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. 
1975 THE GREAT LAKES ENTOMOLOGIST 183 
A NEW SPECIES OF NEELIDES (COLLEMBOLA: NEELIDAE) 
FROM THE UNITED STATES1 
Ernest C. ~ e r n a r d ~ 
This paper is comprised of the description of a new species of Neelides Caroli (1912) 
recovered from moss. It becomes only the third described species of the genus. Specimens 
were recovered by a sugar flotation-centrifugation method (Jenkins, 1964), mounted, and 
characterized with the aid of a camera lucida. The holotype, some paratypes, and five 
specimens in 95% ethyl alcohol will be deposited in the Entomology Museum, Michigan 
State University, East Lansing, Michigan, 48824. 
Neelides snideri, new species 
Coloration.-Specimens in alcohol white with a varying amount of black speckling on the 
head, thorax, and abdomen (Fig. l ) , thus giving them a grayish appearance. Speckles 
generally absent from the appendages. The speckles of specimens treated with NaOH 
disperse to give a lavender color. Specimens observed under dark-field illumination appear 
to have brick-red speckling. 
Morphological Description. -Length 176 to 277 pm with a mean of 234 pm (n = 15). 
Head hypognathous, eyes absent. Antennae only about half the length of the head, 
the ratio of segments 1:II:III:IV as 10: 11:17:15. Ant. 111 with subapical sensory area 
composed of a pair of ovate sense rods flanked on either side by a long sensilla (Fig. 6). 
Ventrad of the outer sensilla is a tiny spine set in a shallow depression. Ant. IV with four 
sensory setae, one of these sIightly thicker than the others; two thin subterminal sensillae 
present; no terminal sense organ or papilla seen. 
Labrum (Fig. 2) quadrate with three or four apparently flattened and furcate setae; 
subapically, labrum with a transverse dorsal row of extremely fine filaments extending 
forward and curving ventrally. Proximally, labrum with a median seta, and on either 
side, four setae on an irregular tubercle. 
Mandible (Fig. 3) with strong molar area and five to seven apical teeth, the proximal 
tooth on the shaft sometimes bifurcate. Maxilla (Fig. 4) well-developed, elongate, with 
five recurved teeth on the inner edge and a long lamellar structure with about eight ridges 
running proximally with the fifth inner tooth at its apex; dorsally, a five-toothed process; 
ventrally, two large transversely ridged teeth; apical part of maxilla with two comblike 
rows of fine setae, a dorsal subapical row recurved ventrally, and an apical row recurved 
dorsally. 
Prothorax reduced. Femur of front leg with a short, thick, curving seta on the inner 
side. Tenent hairs absent. Ungues of front and middle legs (Fig. 9) long and fairly thin, 
with two basal lateral teeth, and usually without an inner tooth; when present, inner 
tooth very small and difficult to see. Unguiculi of the fore- and middle legs only half the 
length of the unguis, with a broad inner lamella, untoothed. Unguis of the hind leg 
(Fig. 10) shorter and wider, with two basal lateral teeth but always without an inner 
tooth. Hind unguiculus lanceolate, nearly as large as unguis, very broad and without 
teeth. 
Ventral tube cylindrical (Fig. 7), the short vesicles smooth, body of the tube with 
1 + 1 or 2 + 2 setae. Retinaculum without setae, the rami bidentate (Fig. 8). 
Furcula (Fig. 13) about one-third the length of the body without head. Ratio of the 
manubrium:dens:mucro as 8:13:8. Manubrium broader than long, with 3 + 3 setae 
dorsally. Dens divided into a short proximal part and a longer, thinner distal part; 
l Michigan Agricultural Experiment Station Journal Article No. 7120. 
2~epar tment of Entomology, Michigan State University, East Lansing, Michigan 
48824. Present address: Department of Plant Pathology and Plant Genetics, University of 
Georgia, Athens, Georgia 30602. 
1
Bernard: A New Species of Neelides (Collembola: Neelidae) from the
Published by ValpoScholar, 1975
THE GREAT LAKES ENTOMOLOGIST Vol. 8 , No. 4 
Figs. 1-8. Neelides snideri, n.sp. Fig. 1. Lateral view. Fig. 2. Dorsal view of lab run^. 
Fig. 3. Mandible. Fig. 4. Maxilla, dorsal view. Fig. 5 . Chaetotaxy of head, dorsal view, 
right side. Fig. 6. Antenna1 segments 111-IV. Fig. 7. Ventral tube. Fig. 8 . Retinaculum. 
2
The Great Lakes Entomologist, Vol. 8, No. 4 [1975], Art. 2
https://scholar.valpo.edu/tgle/vol8/iss4/2
THE GREAT LAKES ENTOMOLOGIST 
Flgs. 9-15. Neelides snideri, n.sp. Fig. 9. Claw of front leg. Fig. 10. Claw of hind leg. 
Fig. 11. Chaetotaxy of left side. Fig. 12. Forms of sensillae: a-d. body sensillae; 
e. clavate sensilla from Abd. 1 ; f. quill-like 'sensilla of sensory areas; g. subventral 
sensilla from near coxal bases. Fig.13. Right half of furcula, dorsal view. 
Fig. 14.Distal portion of mucrodens, ventral view. Fig. 15. Lateral profiles of 
mucrones. 
3
Bernard: A New Species of Neelides (Collembola: Neelidae) from the
Published by ValpoScholar, 1975
186 THE GREAT LAKES ENTOMOLOGIST Vol. 8, No. 4 
proximal part with one dorsal seta; distal part with two dorsal fanera-like setae and one 
ventral fanera medailly; one dorsal seta subapically; two lateral and three ventral fanerae 
apically; proximal fanera-like seta absent. Mucro (Fig. 13-15) tapering, both dorsal edges 
toothed, with 5-9 teeth. 
Sensory areas rudimentary, distinguishable by a weak circle around the seta, caused by 
a disruption of the cuticular granulation. Sensory areas present in the following places: 
on the head, anteromedially and behind the antennae (Fig. 5); on Th. 11, dorsomedially, 
sublaterally above the coxa; on Th. 111, subventrally above the coxa; Abd. I, laterally; and 
Abd. 111-IV, three laterally, arranged in a triangle (Fig. 11). 
Setae and sensillae sparse and short (Fig. 11); prothorax naked. Th. 11-111 and the 
abdomen with variously modified sensillae (Fig. 12), the most prominent of these being 
the three clavate sensillae of Abd. I, the relatively long sensillae near the coxae, and the 
quill-like sensillae of the sensory areas. 
Diagnosis.-N. snideri, n.sp., is similar in general characteristics to the other species of the 
genus, N. minutus (Folsom, 1901) and N. folsomi Caroli, 1912, but differs on a number 
of points: size minute, 176-277 pm [N. minutus, 269440 pm (Bonet, 1947); N. folsomi, 
400 pm] ; hind unguiculus k g e (not so in the other species); mucro with 5-9 teeth (N. 
minutus, 10-12; N. folsomi, 10); proximal fanera-like seta of the dens absent (present in 
the other species). 
It is my pleasure to name this new species after the North American collembolist Dr. 
R. J. Snider. 
Collection Data.-April 13, 1974, the holotype and nine paratypes, and May 19, 1974, 19 
additional specimens, all collected at Monahan Lake, Livingston County, Michigan, from 
various species of moss growing on soil or dead stumps, E. Bernard, collector. 
LITERATURE CITED 
Bonet, F. 1947. Monografia de la farnilia Neelidae (Collembola). Rev. Soc. Mex. Hist, 
Nat. 8:131-192. 
Caroli, E. 191 2. Collembola. 1. Su di un nuovo genere di Neelidae. Annuario Musee. 
Zool. della R. Univ. Napoli (N.S.) Suppl. Fauna degli Astroni. No. 4, p. 1-5. 
Folsom, J. W. 1901. Review of the Collembola genus Neelus and description of N. 
minutus n.sp. Psyche 9:219-222. 
Jenkins, W. R. 1964. A rapid centrifugal-flotation technique for separating nematodes 
from soil. Plant Dis. Rep. 48~692. 
4
The Great Lakes Entomologist, Vol. 8, No. 4 [1975], Art. 2
https://scholar.valpo.edu/tgle/vol8/iss4/2

https://scholar.valpo.edu/cgi/viewcontent.cgi?article=1259&amp;context=tgle

A New Species of \u3ci\u3eNeelides\u3c/i\u3e (Collembola: Neelidae) from the United States

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