Kameruloria nigricornis Desutter-Grandcolas

Desutter-Grandcolas, Laure, 2015, Phalangopsidae crickets from Tropical Africa (Orthoptera, Grylloidea), with descriptions of new taxa and an identification key for African genera, Zootaxa 3948 (3), pp. 451-496 : 468-472

Kameruloria nigricornis Desutter-Grandcolas , n. sp.

( Figs 5 A, D, F, G, I, 6A–C, 7A, C, D)

Type locality. Gabon, Ogooué—Ivindo, 8 km SW Makokou, Plateau d'Ipassa.

Type material. Holotype. Gabon, Ogooué–Ivindo, 8 km SW Makokou, Plateau d'Ipassa, forêt, 15.vii.1989, nuit, 1 male, fn5, sur Maranthaceae, P. Grandcolas (MNHN-EO-ENSIF3719). Allotype. Same locality and collector as the holotype, milieu ouvert, bord de piste, 16.vii.1989, nuit, 1 female, fn5 (MNHN-EO-ENSIF3720). Paratypes, 3 males. Same locality and collector as the holotype, forêt, 11.vii.1989, nuit, 1 male, fn4, sur Maranthaceae; forêt secondaire, 10.vii.1989, nuit, 1 male, fn4, sur plante; forêt, 3.vii.1989, nuit, 1 male, fn2, sur Maranthaceae (MNHN-EO-ENSIF3721–3723).

Etymology. Species named after the striking dark coloration of its antennae.

Diagnosis. Morphological characters congruent with Phaloriinae definition (see above). Species corresponding to the emended diagnosis of Kameruloria given above, for the following characters: tympana shape and development; TI shape, almost not inflated at tympana level; TIII relatively short subapical spurs (here, the second and third inner spurs slightly longer than spurs 1 and 4), well shorter than dorsal inner apical spur; male FW venation (mirror and harp veins); male subgenital plate (apical margin faintly sinuate); male genitalia (pseudepiphallus membranous medially and with a pair of long, distal processes, pseudepiphallic parameres spinelike, ectophallic fold wide and short, with wide latero-ventral margins, ectophallic dorsal valves not developed, endophallic apodeme made of a median longitudinal crest and a pair of lateral lamellae along endophallic sclerite). K. nigricornis Desutter-Grandcolas , n. sp. differs however by the length of male FWs, with a well-developed apical field ( Fig. 5 D), and the ventral margins of ectophallic fold of male genitalia (widely extended and asymmetrical, Fig. 6 B, C).

Description

In addition to the characters of the subfamily and genus. Large species with longer FWs than in K. primitiva ; HWs going distinctly beyond FWs, but not very long. FWs with many very short setae. Head. Fastigium as wide as the scapes; ocelli wide, set almost as an equilateral triangle, the distance between lateral ocelli being nearly that between the median and one lateral ocelli. Joint 4 of maxillary palpi little shorter than joint 3; joint 5 longer than joint 3, less than in K. gabonensis Desutter-Grandcolas , n. sp. (compare Fig. 5 A and 5B). Pronotum very transverse; DD anterior margin concave, posterior margin bisinuate. TI hardly inflated at the level of the tympana; outer tympana bigger than the inner one, located in a shallow groove. TIII subapical spurs short, the inner ones little longer than the outer ones; inner subapical spurs 2 and 3 longer than spurs 1 and 4; outer spur 4 small, other spurs smaller in size toward TIII apex, the longest outer subapical spur being the spur 3; first inner subapical spur the longest, half the length of inner dorsal apical spur; this last spur a bit longer than basitarsomeres III. TIII serrulation lacking between first subapical spurs and apical spurs, and between subapical spurs; above subapical spurs, outer spines: five to nine (mean 6.7) in males, seven in female; inner spines: two to five (mean 3.7) in males, five to six (mean 5.5) in female. Basitarsomeres III serrulation: no inner spine in addition to apical one; outer spines: two to four (mean three) in males and three to four (mean 3.5) in female.

Coloration. Lightly coloured species, with strikingly dark brown antennae. Head dorsum yellowish with four faint longitudinal brown lines, the median ones joining before reaching the lateral ocelli; fastigium light yellow (darker in one male paratype); ocelli ivory circled with black; sometimes dark spot laterally to ocelli. Cheeks yellow, sometimes indistinctly brownish along the distal margin. Face, clypeus and labre light yellow; a pair of thin brown lines below the median ocelli down to the level of antennal pit lower margin, joining a rounded brown spot under each antennal pit. Antennae dark brown, scapes and first antennal segment light yellowish. Palpi light yellowish, the distal part of joint 5 light brown. Pronotum DD light ochre brown; anterior margin lighter; posterior margin ochre; LL light brown with a wide yellowish brown transverse spot in lower half. Legs light yellowish, mostly spotted and little annulated with light brown: FI, FII with a light brown subdistal ring, many dark spots on dorsal side, and wider ones on inner and outer sides; TI, TII with four very light brown rings; FIII with two light brown distal rings, darker striae on outer side and irregular spots on inner side. Basitarsomeres yellowish, the base and apex somewhat darker. TIII spurs yellowish with dark apex.

Male. Metanotum and tergites without glandular structures. FW with many very small setae; venation as on Fig. 5 D; harp with nine curved, oblique, parallel veins; diagonal forked with one branch to the file and one to the first chord. Stridulatory file with 254 teeth (n=1), largely expanded laterally. Apical field with five long cell alignments. Supra anal plate with long and thin setae; distal margin deeply bisinuate ( Fig. 5 F). Subgenital plate well developed, inflated laterally; distal margin well bisinuate ( Fig. 5 G).

Male genitalia. Upper part of pseudepiphallic sclerite transverse and very narrow, with a median, triangular distal process ( Fig. 6 A). Lower part of pseudepiphallic sclerite short, connected laterally to the rami; two long distal processes bifurcated posteriorly to midlength ( Fig. 6 A), with blunt apex bearing two small spines and a ventral subapical spine ( Fig. 5 I); pseudepiphallic parameres spine-like ( Fig. 6 A), shorter than the distal processes ( Fig. 6 C). Ectophallic apodemes thick, regularly curved, not raised dorsally, shorter than the rami; arc sclerotized ( Fig. 6 A). Ectophallic fold wide, very short, sclerotized, with a pair of transverse subapical dorsal crests ( Fig. 6 A); ventral margins greatly extended, asymmetrical ( Fig. 6 B, C). Endophallic sclerite long and very wide ( Fig. 6 A). Endophallic apodeme with a long and high, longitudinal median crest, and a pair of long, short lamellas running laterally to the endophallic sclerite ( Fig. 6 A). Ectophallic dorsal valves lacking or very short.

Female. Smaller than males. FW venation with few, strong longitudinal veins; CuA very high on more than half ot its length basally, MP very high on the median third of its length. Subgenital plate wider than long; distal margin very little sinuate ( Fig. 7 A). Ovipositor very short, about half FIII length (see measurements).

Female genitalia. Copulatory papilla very small, wider than long; distal margin bisinuate ( Fig. 7 D); aperture of spermathecal duct separate from the copulatory papilla, the duct short and the spermatheca small; a wide membranous pouch with spermatophore ampulla ( Fig. 7 D).

Remark. This species shows a large variation in size (see measurements below), but coloration and male genitalia are homogeneous.

Habitat. K. nigricornis Desutter-Grandcolas , n. sp. is a forest-living species active at night. It has most often been found on the leaves of Marantaceae plants, along streams and swamped places.

Figures

FIGURE 5. Kameruloria Gorochov, 2003. A – C, maxillary palpi; D – E, dorsal field of male forewing; F, male supra anal plate; G – H, male subgenital plate; I – J, male genitalia, details of pseudepiphallic processes, of Kameruloria nigricornis Desutter- Grandcolas, n. sp. (A, D, F, G, I), Kameruloria gabonensis Desutter-Grandcolas, n. sp. (B, H, J) and Kameruloria trimaculata Desutter-Grandcolas, n. sp. (C, E). Scale bars 1 mm.

FIGURE 6. Kameruloria Gorochov, 2003. Male genitalia in dorsal (A, D, G), ventral (B, E, H) and lateral (C, F, I) views of: Kameruloria nigricornis Desutter-Grandcolas, n. sp. (A – C), Kameruloria gabonensis Desutter-Grandcolas, n. sp. (D – F) and Kameruloria trimaculata Desutter-Grandcolas, n. sp. (G – I). Abbreviations, see page 3.

FIGURE 7. Kameruloria Gorochov, 2003. Female subgenital plate, ventral view (A – B) and copulatory papilla (C – G) in dorsal (E), ventral (D, F) and lateral (C, G) views of: Kameruloria nigricornis Desutter-Grandcolas, n. sp. (A, C, D) and Kameruloria trimaculata Desutter-Grandcolas, n. sp. (B, E – G). Scale bars 1 mm. Abbreviations: see page **.