Gabrius gomyi, Hromádka, 2011

Hromádka, L., 2011, Revision of the genus Gabrius STEPHENS 1829 from Madagascar and adjoining Islands (Coleoptera: Staphylinidae: Philonthina), Linzer biologische Beiträge 43 (2), pp. 1377-1397 : 1383-1384

publication ID	https://doi.org/ 10.5281/zenodo.5326699
persistent identifier	https://treatment.plazi.org/id/240F87D5-AE44-5419-9AB9-19A9F08D4E0F
treatment provided by	Carolina
scientific name	Gabrius gomyi
status

Treatment

Gabrius gomyi LECOQ 1990 View in CoL ( Figs 16-19 View Figs 16-19 )

T y p e m a t e r i a l e x a m i n e d Holotype: ″ Le Réunion, Des Chicots , pr. du Gîte, 1850 m, 21.iv.1973, Terreau S / S Philippia,(Microptera). // Gabrius gomyi n.sp. J. C. Lecoq, 1987, Muséum Paris, Ex. Collection J. Jarrige’ ( MNHN).

R e d e s c r i p t i o n: Body length 5.8 mm, length of fore body (to end of elytra) 2.5 mm. Head and pronotum chocolate-brown, scutellum, elytra and abdomen brownred, maxillary and labial palpi brown-yellow, antennomeres 1-2 and base of antennomere 3 and legs yellow-brown, remaining antennomeres dark brown.

Head ( Fig. 19 View Figs 16-19 ) longer than wide (ratio 18.5: 17), distinctly narrowed posteriorly, whole sides bearing several short bristles. Between eyes 4 coarse punctures, distance between medial punctures 6 times as large as distance between lateral and medial puncture, medial punctures slightly shifted anteriorly. From lateral punctures a vertical row of 5 approximately equidistant punctures towards the neck. Eyes flat and small, much shorter than temples (ratio 4: 16). Temporal area with several small punctutres. Surface with microsculpture consisting of transverse waves.

Antennae long reaching posterior fifth of pronotum when reclined, Antennomere 1 more than twice longer than antennomere 11, antennomere 2 longer than antennomere 3, antennomeres 4-10 of equal length.

Pronotum highly convex, wider than long (ratio 24: 18), distinctly narrower anteriorly, Posterior angles markedly rounded. Each dorsal row with 6 approximately equidistant punctures, each sublateral row with 2 punctures, puncture 1 situated behind level of puncture 4 in dorsal row, puncture 2 shifted to the lateral margin. Surface with microsculpture similar to that on head.

Scutellum only with scattered punctures, diameter of punctures as large as eye-facets, separated by 2 puncture diameters in transverse direction. Surfacec lacks microsculpture.

Elytra slightly wider than long, parallel-sided. Punctation coarse and dense, punctation of shoulders denser. Diameter of punctures larger than eye-facets, separated by 1 puncture

diameter in transverse direction. Surface lacks microsculpture; setation longer and yellow.

Metatarsus as long as metatibia, metatarsomere 1 as long as metatarsomere 5, slightly shorter than metatarsomeres 2-3 combined.

Abdomen parallel-sided, very gradually narrower posteriorly. Punctation finer and sparser than that on elytra, diameter of punctures as large as eye-facets, separated by one and half or two puncture diameters. Surface lacks microsculpture; setation similar to that on elytra.

C o m p a r a t i v e n o t e s G. gomyi may be distinguished from the similar G. fauveli by the paler head, pronotum and elytra, longer head, wider pronotum and by the different shape of the aedeagus.

D i s t r i b u t i o n: Réunion (HERMAN 2010).