Absonemobius lucensis, Desutter-Grandcolas, Laure & Hugel, Sylvain, 2016

Desutter-Grandcolas, Laure & Hugel, Sylvain, 2016, First occurrence of Nemobiinae crickets in the Lesser Antilles (Orthoptera, Grylloidea, Trigonidiidae), with the descriptions of three new species, Zootaxa 4168 (2), pp. 313-326 : 319-321

Absonemobius lucensis n. sp.

( Fig. 3 )

Type material. Holotype: [Lesser Antilles], St. Lucia.

Type material. Holotype: [Lesser Antilles], Sainte Lucie, Des Cartiers trail, 1 male, 26.vii.2014, fn 2014- LCU-SH033, S. Hugel (MNHN-EO-ENSIF4188). Allotype: Same data as the holotype, 1 female, fn 2014-LCU- SH035 (MNHN-EO-ENSIF4189). Paratypes, 1 male, 2 femelles. Same data as the holotype, fn 2014-LCU- SH034, 0 36, 0 37 (MNHN-EO-ENSIF4190-4192).

Additional material examined. Same data as the holotype, 1 male, 1 female, fn 2014-LCU-SH040-042, in alcohol (Coll. SH), 1 male, 1 female, fn 2014-LCU-SH040-042, in alcohol ( MNHN, vial number 630).

Type locality. Lesser Antilles , St. Lucia, Des Cartiers trail.

Distribution. Lesser Antilles, St. Lucia.

Diagnosis. Within the genus, species most similar to A. vincenti n. sp., especially by its small size. It can be separated from the latter species by the yellowish margin of its cheeks, details in coloration of the head and pronotum, and details in male genitalia.

Description. In addition to characters of the genus ( Desutter-Grandcolas, 1993):

Size similar to A. vincenti n. sp., smaller than A. septentrion n. sp., A. alatus and A. darienicus n. comb.

Coloration. Fig. 3 A–D. Compared to A. vincenti n. sp., head dorsum clearly yellowish along eyes inner margins ( Fig. 3 A), face lighter below median ocellus ( Fig. 3 B), cheeks yellow ( Fig. 3 C), scape light yellow but antennae darker from their bases ( Fig. 3 B); maxillary palpi yellowish, distal half of joint 5 dark brown ( Fig. 3 B). Antennae light brown, getting darker along their length. Anterior and posterior margins of DD yellow ( Fig. 3 A). LL and abdomen, including subgenital plate, black brown ( Fig. 1 C), but subgenital plate lighter from above ( Fig. 3 A). Cerci light brown. Legs yellowish brown with darker knees.

Male genitalia. Fig. 3 E–G. Pseudepiphallic sclerite more similar to A. septentrion n. sp., but median lobes separated apically by a small notch and anterior margin of pseudepiphallic sclerite strongly sclerotized as in A. vicenti n. sp.; pseudepiphallic process shorter than in A. vincenti n. sp., thus more similar to A. septentrion n. sp. in lateral view.

Female. Subgenital plate very transverse, distal margin bisinuate; entirely black brown. Penultimate sternite black brown. Ovipositor shorter than TIII.

Female genitalia. Not examined.

Measurements (in mm).

Figures

FIGURE 1. Absonemobius septentrion, n. sp., A – D, male holotype, E – G, male paratype MNHN-EO-ENSIF 3987: A, male habitus; B, face; C, head and pronotum, lateral; D, femur III, outer side; E – G, male genitalia, dorsal (E), ventral (F), lateral (G); H, female allotype, subgenital plate. Scales 1 mm. Abbreviations: see Material and methods. Arrows show the distal margin of pseudepiphallic process and the deep notch on the left of pseudepiphallic sclerite.

FIGURE 3. Absonemobius lucensis, n. sp., male holotype: A, male habitus; B, face; C, lateral; D, leg III, outer side; E – G, male genitalia, dorsal (E), ventral (F), lateral (G). Scales 1 mm. Abbreviations: see Material and methods. Arrows show the deep notch on the left of pseudepiphallic sclerite.