A revision of the genus Chaetolabia Brindle, 1972 (Dermaptera, Labiidae)

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ANNALES HISTORICO-NATURALES MUSEI NATIONAL!S HUNGARICI Tomus 77. Budapest, 1985 p. 121-126. A revision of the genus Chaetolabia Brindle, 1972 (Dermaptera, Labiidae) by H.

1 ANNALES HISTORICO-NATURALES MUSEI NATIONAL!S HUNGARICI Tomus 77. Budapest, 1985 p A revision of the genus Chaetolabia Brindle, 1972 (Dermaptera, Labiidae) by H. STEINMANN, Budapest Abstract A revision based on the comparative morphological description of male genitalia of the genus Chaetolabia BRINDLE, and descriptions of C. parabola sp. n. (Congo Republic), C. hilaro sp. n. (New Guinea), C. socculata sp. n. (Solomon Islands), C. nebulosa sp. n. (Fiji) and C. venusta sp. n. (Fiji) are given. With 10 figures. I n 1972 B R I N D L E separated a genus within the subfamily Labiinae i n which the male forceps is not strongly setulose and the inner flange is absent. I n the male genital apparatusthe virga is straight and the pronotum towards anterior margin clearly narrowing. The species o f the genus are distributed i n the circumtropical faunal regions. Chaetolabia BRINDLE 1972 Chaetolabia BRINDLE, Insects of Micronesia, 5 (2): 150. Species typica: Labia esakii M E NOZZI, Intermediate in characters between the genus Paralabella STEINMANN, and the genus Sphingolabis BORMANS. Head transverse or quadrate, tumid; pronotum small, parallel-sided or widened pos teriorly. Tegmina and wings normally developed or tegmina short and wings concealed or absent. Forceps of both sexes not strongly setulose. Male genitalia with virga straight, turned basally or simple, distal or genital lobe with or without sclerotized area. Distribution: Aethiopian (with Seychelles), Oriental and Indo-Australian faunal regions. 17 species. IDENTIFICATION K E Y TO T H E SPECIES 1 (12) Ethiopian species. 2 ( 7 ) Male pygidium relatively small; each branch o f forceps o f female with a basal dorsal tooth, dorsal inner edge not or scarcely dentated. 3 (4) Tegmina short, wings absent or concealed; male pygidium w i t h a posterior tubercle medially; basal dorsal tooth o f female forceps smaller montana B R I N D L E, (3) Tegmina and wings well or fully developed. 5 ( 6 ) Posterior margin o f male pygidium concave; each branch o f male forceps simple; basal dorsal tooth o f female forceps larger delicatula ( B R I N D L E, 1970) 6 ( 5 ) Posterior margin o f male pygidium with two small tubercles ; each branch o f male forceps (Fig. 1) with a larger inner ventral projection, and a second inner tooth apically; male genitalia as i n Fig. 2 parabola sp. n. 7 ( 2 ) Male pygidium relatively large; each branch o f forceps o f female without a basal dorsal tooth but with dorsal inner edge strongly dentated. 8 (9) Each branch o f male forceps simple, or w i t h only small teeth; pygidium large but not so strongly transverse ; female pygidium transverse, posterior margin more or less straight bihastata ( B O R G, 1904) 9 (8) Each branch o f male forceps w i t h an inner tooth, or i f without the pygidium very strongly transverse; pygidium o f female w i t h posterior margin produced.

10 ( 1 1 ) Each branch o f male forceps without an inner tooth o n basal half, pygidium very strongly transverse; male genitalia specific, virga within genital lobe w i t h a strongly sclerotized

2 10 ( 1 1 ) Each branch o f male forceps without an inner tooth o n basal half, pygidium very strongly transverse; male genitalia specific, virga within genital lobe w i t h a strongly sclerotized section basally ; pygidium o f female more or less large quadrilobata ( D O H R N, ) 11 ( 1 0 ) Each branch o f male forceps w i t h a n inner tooth o n basal half, pygidium not strongly transverse; male genitalia characteristic, genital lobe with a broad sclerotized area apically; pygidium of female less large tetragona ( B O R E L L I, 1907) 12 ( 1 ) Oriental or Indo-Australian species. 13 ( 1 4 ) Oriental species. Apical inner part o f male forceps with specific teeth; female forceps w i t h inner tooth o n apical section cingalensis ( D O H R N, ) comb. n. 14 ( 1 3 ) Indo-Australian species. 15 ( 1 6 ) Male genitalia o f Paraspania-type spiral virga, but external characters o f Chaetola6/û-type; male forceps w i t h large inner tooth basally, and a second tooth medially dentata ( B R I N D L E, ) 16 ( 1 5 ) Male genitalia not o f Paraspania-type, virga within genital lobe otherwise. 17 ( 2 0 ) Male forceps with large inner tooth near midpoint. 18 ( 1 9 ) Male pygidium w i t h two large median, and four smaller lateral tubercles posteriorly; female forceps straight, inner margins crenulate stoneri ( C A U D E L L, 1927) 19 (18) Male pygidium with a small median, bifid tubercle medially (Fig. 3 ) ; male genitalia w i t h a short undulate virga (Fig. 4 ) hilaro sp. n. 2 0 (17) Male forceps without large inner tooth near mid-point. 21 ( 2 2 ) Male pygidium small, simple, transverse (Fig. 5 ) ; each branch o f male forceps simple, inner margins without tooth or teeth, but w i t h dorsal and ventral edges; male genitalia specific as i n Fig. 6 socculata sp. n. 2 2 ( 2 1 ) Male pygidium large, not transverse; each branch o f male forceps with inner tooth or teeth. 23 ( 2 4 ) Male pygidium characteristic, lanceolate; female pygidium with two small tubercles posteriorly spicata B R I N D L E, ( 2 3 ) Male pygidium otherwise. 25 ( 2 6 ) Male genitalia w i t h very narrow external parameres, virga within genital lobe undulate; male pygidium very large, posterior margin broadly excised; female forceps w i t h a specific crenulated section on apical half canaca ( B U R R, ) 2 6 ( 2 5 ) Male genitalia w i t h gibbous external parameres; virga within genital lobe turned basally. 2 7 (28) Male pygidium conspicuous, very broad, and broadly excised posteriorly; male genitalia w i t h a thick virga; female forceps with inner margins strongly crenulate esakii ( M E N O Z Z I, ) 28 (27) Male pygidium otherwise. 2 9 ( 3 0 ) Male virga within genital lobe not associated w i t h a very large sclerotized area; male pygidium broad at base, strongly narrowed posteriorly, apex bifid; female forceps serrated at inner margins appendicina ( M E N O Z Z I, 1941) 30 ( 2 9 ) Male virga within genital lobe associated w i t h a very large sclerotized area; male pygidium otherwise. 31 ( 3 2 ) Male pygidium triangular, a little similar to Dora-type i n dorsal view (Fig. 7 ) ; male genitalia conspicuous, virga w i t h i n genital lobe thick; genital lobe w i t h large sclerotized area (Fig. 8 ) nebulosa sp. n. 3 2 ( 3 1 ) Male pygidium bifid apically (Fig. 9 ), not of Dorw-type; male genitalia characteristic, virga w i t h i n genital lobe narrow; genital lobe w i t h a smaller sclerotized area (Fig. 10) venusta sp. n.

Figs 1-5. 1 = Holotypc ultimate tergite and forceps of Chaetolabia parabola sp. n., and 2 = ditto, holotype genital armature. 3 = Holotype ultimate tergite and forceps of Ch. Maro sp. n., and 4 = ditto, holotype genital armature.

3 Figs = Holotypc ultimate tergite and forceps of Chaetolabia parabola sp. n., and 2 = ditto, holotype genital armature. 3 = Holotype ultimate tergite and forceps of Ch. Maro sp. n., and 4 = ditto, holotype genital armature. 5 = Holotype ultimate tergite and forceps of Ch. socculata sp. n. (Original) DESCRIPTION OF THE NEW SPECIES Chaetolabia parabola sp. n. (Figs 1-2) Male head dark brownish black; antennae dark brown; pronotum and legs yellowish; tegmina and wings yellowish brown; abdomen with forceps reddish. Cuticle shining, finely punctured and pubescent. H e a d longer than broad, tumid; lateral margins behind eyes with posterolateral angles rounded, posterior margin concave. Eyes small, typical. Antennae 18-jointed; first joint long, but a little shorter than distance between antennái bases ; second transverse, third joint slightly longer than fourth. Postfrontal and coronal sutures indistinct. P ronotum a little longer than broad; lateral margins straight, finely widened posteriorly, postero-lateral angles with posterior margin broadly rounded; median longitudinal furrow well marked. Tegmina and wings fully developed. A b d o m e n slender, cylindrical; lateral glandular folds on tergites third and fourth present. Ultimate tergite transverse, depressed medially near posterior margin; last margin concave medially. P y g i d i u m transverse, with two small tubercles at posterior margin medially. Each branch of forceps (Fig. 1) trigonal basally, cylindrical medially and apically; ventral inner edge with a larger projection near pygidium, and inner margin with a small tubercle at apical portion. Genitalia (Fig. 2) large, characteristic; central parameral plate narrow and long, virga within genital lobe very long ; external paramere specific, very narrow, apex acuminate. F e - male unknown. L e n g t h of body with forceps : 13 mm. Holotype male: Congo Republic, Brazzaville, Meya, Luolo River, 1 November 1963, legit Dr. J. Balogh, gen. prep. No. 118, det. Dr. H. Steinmann; paratype male, 1 ex., ditto gen. prep. No. 110, det. Dr. H. Steinmann. Deposited in the Hungarian Natural History Musum, Budapest. Chaetolabia hilaro sp. n. (Figs 3-4) Male dull, generally reddish brown ; legs light brown, forceps yellowish brown. Cuticle finely punctured and pubescent, tegmina and abdominal tergites with long lateral hairs, forceps with short hairs and longer setae. Head tumid, large; postfrontal and coronal sutures indistinct

4 (holotype) or coronal suture well marked, long (paratype). Posterior margin of head concave in middle. Eyes small, t y p i c a l. A n t e n n a e 11-jointed; first joint comparatively long, about as long as distance between antennái bases ; second transverse, third joint a little longer than fourth. P r o n o t u m quadrate, lateral margins straight, finely narrowed posteriorly ; last margin con vex; median longitudinal furrow present. Tegmina and wings s h o r t. A b d o m e n fusiform, lateral glandular folds on third and fourth tergites small. Ultimate tergite transverse, posterior margin insinuate. P y g i d i u m characteristic, posterior margin with small, bifid tubercle medi ally. Each branch of forceps (Fig. 3) arcuate, inner margin with a sharp tooth near mid-point. G e n i t a l i a (Fig. 4) specific, very simple; central parameral plate narrow and comparatively short, virga within genital lobe short; external paramere large, with parallel outer and inner sides medially; apex obtuse. F e m a 1 e unknown. L e n g t h of body with forceps : 7 mm. H o l o t y p e male: New Guinea, Wau, Nami Creek, 1968, legit Dr. J. Balogh, gen. prep. No. 856, det. Dr. H. Steinmann. Deposited in the Hungarian Natural History Museum, Budapest. Chaetolabia socculata sp.n. (Figs 5-6) M a l e head, antennae, pronotum, legs except femora apically, tegmina and wings dark brownish black; abdomen with forceps dark reddish brown. Cuticle strongly punctured and pubescent, tegmina and wings a little coriaceous. Head large; postfrontal and coronal sutures distinct; lateral margins with postero-lateral angles of head rounded, posterior margin concave medially. Eyes small, typical. First a n t e n n á i joint comparatively long, about as long as distance be tween antenna! bases; second quadrate, third joint slightly longer than f o u r t h. P r o n o t u m about as long as wide; lateral margins straight, a little narrowed posteriorly, last margin rounded; median longitudinal furrow present. Tegmina and wings fully developed. A b d o m e n a little depressed, tergites with sparse marginal hairs. Ultimate tergite simple, broad, a little depressed m e d i a l l y. P y g i d i u m small, simple, transverse; posterior margin straight, but postero-lateral angles rounded. Each branch of forceps (Fig. 5) simple, inner margins without tooth or teeth, branches strongly trigonal in cross-section basally and medially, cylindrical apically. G e n i t a 1 i a (Fig. 6) specific; central parameral plate strongly narrowed basally, and widened apically; virga within genital lobe short, and associated with a smaller, but strongly sclerotized plate basally; external paramere specific, broad, gibbous basally, and acuminate apically. F e m a 1 e unknown. L e n g t h of body with forceps : 7 mm. H o l o t y p e male: Solomon Islands, Guadalcanal, I. Poha River, 6. X. 1957, J. L. Gressit Collector, Bishop Museum, gen. prep. No. 851, det. Dr. H. Steinmann. Deposited in the Bishop Museum, Honolulu, Hawaii (USA). Chaetolabia nebulosa sp. n. (Figs 7-8) M a l e general colour yellowish brown; abdominal tergites and forceps reddish yellow. Cuticle shining, finely punctured and pubescent ; pronotum with long setae laterally. H e a d longer than broad ; tumid ; postfrontal and coronal sutures visible ; lateral margins behind eyes with postero lateral angles rounded; posterior margin emarginate in middle. Eyes s m a l l. A n t e n n a e 13-jointed; first joint long, about as long as distance between antennái bases; second quadrate, third joint about as long as fourth. P r o n o t u m essentially longer than broad; lateral margins straight and widened posteriorly; posterior margin weakly convex; median longitudinal furrow distinct. Tegmina short, one and half times as long as pronotum; wings a b s e n t. A b d o m e n comparatively long, a little depressed, strongly narrowed basally; ultimate tergite broad, simple. P y g i d i u m trigonal, a little flattened, apex obtuse. Each branch of forceps (Fig. 7) arcuate, trigonal in cross-section basally, cylindrical medially and apically; ventral inner margin with a small tooth near pygidium, and a second near p a e x. G e n i t a l i a (Fig. 8) characteristic; central parameral plate large, fully developed; virga within genital lobe very thick, and associated with a specific sclerotized plate ; external paramere very large, outer margin undulate. F e m a 1 e unknown. L e n g t h of body with forceps: mm. H o l o t y p e male: Fiji, Nandanivatu, Navai M i l l, X JM Valentine Collector, gen. prep. No. 852, det. Dr. H. Steinmann (deposited in the Bishop Museum, Honolulu, Hawaii, USA). P a r a t y p e male, 1 ex., ditto (deposited in the Hungarian Natural History Museum, Budapest).

Figs 6-10. 6 = Holotype genital armature of Chaetolabis socculata sp. n. 7 = Holotype ultimate tergite and forceps of Ch. nebulosa sp. n., and 8 = ditto, holotype genital armature.

5 Figs = Holotype genital armature of Chaetolabis socculata sp. n. 7 = Holotype ultimate tergite and forceps of Ch. nebulosa sp. n., and 8 = ditto, holotype genital armature. 9 = Holotype ultimate tergite and forceps of Ch. venusta sp. n., and 10 = ditto, holotype genital armature (Original) Chaetolabia venusta sp. n. (Figs 9-10) Male general colour reddish yellow; antennae and legs yellow, tegmina and wings shaded with brownish colour. Cuticle finely punctured and pubescent, body with long setae. H e a d longer than broad; tumid; postfrontal and coronal sutures visible; lateral margins with posterolateral angles rounded, posterior margin deeply concave. Eyes comparatively large. A n t e n n a e 12-jointed; first joint long, but shorter than distance between antennái bases; second quadrate, third joint slightly longer than fourth. P r o n o t u m weakly longer than broad; lateral margins straight and widened posteriorly; posterior margin convex; median longitudinal furrow well marked. Tegmina and wings well developed. A b d o m e n depressed, more or less parallel-sided except at base; ultimate tergite transverse, simple, posterior margin insinuate. Pygidium longer than broad, bifid apically. Each branch of forceps (Fig. 9) arcuate, with very long yellow setae, ventral inner margin with two small teeth. G e n i t a 1 i a (Fig. 10) large, central parameral plate broad; virga within genital lobe short and associated with a very large sclerotized area; external paramere similar to Ch. nebulosa sp. n., but shorter, and apex elongated. -Female similar to male, but forceps straight, branches trigonal in cross-section basally and medially, cylindrical apically; inner ventral edge with a smaller tooth near base and a crenulated section medially. Length of body with forceps in both sexes : mm. Holotype male: Fiji, Ovalau, Wainiloka, IX. 28, 37, JM Valentine, gen. prep. No. 850, det. Dr. H. Steinmann, and paratypes females, 2 ex. Female: Fiji, Viti Levu, Yayu, nr. Nandarivatu, 690 m, V1I , under bark, Borys Malkin Collector, Bishop Museum, and female: Fiji, Vitilevu, Korovou, Tailevu, VIII-17-37, JM Valentine Collector (deposited in the Bishop Museum, Honolulu, Hawaii, USA). Par at y pe male: Fiji, Viti Levu, Mt. Victoria, trail from Navai, m, VII , Borys Malkin Collector (deposited in the Hungarian Natural History Museum, Budapest).

References BOESEMAN, M. (1954): The Dermaptera in the Museums at Leiden and Amsterdam. Verh. Zool. (Leiden) 21: 1-122. BRINDLE, A. (1970): The Dermaptera of the Solomon Islands.

6 References BOESEMAN, M. (1954): The Dermaptera in the Museums at Leiden and Amsterdam. Verh. Zool. (Leiden) 21: BRINDLE, A. (1970): The Dermaptera of the Solomon Islands. Pacific Insects 12 (3): BRINDLE, A. (1972): Dermaptera. In: Insects of Micronesia 5 (2): BRINDLE, A. (1973): The Dermaptera of Africa. Part I. Mus. R. VAfr. Centr. (Tervuren) No. 205: BRINDLE, A. (1976): The Dermaptera of the New Caledonia. Pacific Insects 17 (1): BRINDLE, A. (1976): The Dermaptera of the New Hebrides. Ree. S. Austr. Mus. 17 (13): HiNCKS, W. D. (1938): The Dermaptera of Oceania. J. Fed. Malay St. Mus. 18: SAKAI, S. (1970): Dermapterorum Catalogus Praeliminaris. Part II. Labiidae. Daito Bunka Univ. (Tokyo), p STELNMANN, H. (1979): A survey of the zoogeography of Labiidae. Dtsch. Ent. Z. 26: Author's address : DR. HENRIK STEINMANN Zoological Department Hungarian Natural History Museum Budapest, Baross utca 13 H-1088

A revision of the genus Acaníhocordax Günther, 1929 (Dermaptera, Forficulidae)

ANNALES HISTORICO-NATURALES MUSEI NATIONALIS HUNGARICI Tomus 80. Budapest, 1988 p. 51-56. A revision of the genus Acaníhocordax Günther, 1929 (Dermaptera, Forficulidae) by H. STEINMANN, Budapest H. STEINMANN: