Mimogonia hermani, Irmler, Ulrich, 2007

Irmler, Ulrich, 2007, The genus Mimogonia (Coleoptera: Staphylinidae: Osoriinae) from the Neotropical region with descriptions of four new species, Zootaxa 1651, pp. 57-64 : 58

Mimogonia hermani n.sp.

Figs. 2 A–D, 5C

Type material. Holotype, male: BOLIVIA: Beni, Ilha Flores, Rio Itenez, 0 7.08.1964, leg. J.K. Bouseman & L. Lussenhop ( AMNH). Paratypes: BOLIVIA: 9 females with same data as holotype ( AMNH, UIC).

Diagnosis. The species resembles M. elytrata Irmler, 2005 in body size and colour of the elytra: yellow with darker posterior part. The eyes are smaller and less prominent, and the punctation of the elytra is finer and sparser than in M. elytrata ( Fig. 5 C). Furthermore, the dark part of the elytra is smaller and the head is yellow, too, while it is dark in M. elytrata .

Description. Body length 2.1 mm.

Body colour yellow, posterior edge of elytra dark.

Head 0.25 mm long, 0.40 mm wide; with eyes nearly twice as long as temples; setiferous punctation dense and distinct, distance between punctures on average half as wide as diameter of punctures; microsculpture reticulate; surface glossy, a space at base of antennae without punctures and microsculpture, surface glossy.

Antennae with 1st antennomere long, nearly as long as 2nd and 3rd antennomeres combined, 2nd antennomere oblong, slightly longer than wide, 3rd antennomere conical and not longer than 2nd, 4th antennomere wider than long and as wide as 3rd, the following antennomeres increasing in width, distinctly wider than long ( Fig. 2 B).

Pronotum 0.35 mm long, 0.47 mm wide; widest close to anterior angles, slightly narrowed to large emargination in front of posterior angles, an indistinct longitudinal depression on each side of midline in front of posterior edge; setiferous punctation coarse and dense, distance between punctures on average half as wide as diameter of punctures, with reticulate microsculpture, surface glossy.

Elytra 0.50 mm long, 0.45 mm wide; with dense setiferous punctation ( Fig. 5 C), a larger setiferous puncture on the disc on each side of the suture, with distinct reticulate microsculpture, microsculpture much deeper than on head and pronotum, thus surface with weak gloss.

Abdomen with finer setiferous punctation than on forebody, microsculpture as weak as on head and pronotum, surface glossy.

Male mesotibia widest in the middle, weakly narrowed towards apex, at inner side, from widest part to apex with a comb of long setae ( Fig. 2 C); posterior side covered with few setiferous punctures.

Aedeagus with short hook-like structure at apex ( Fig. 2 D).

Etymology. The species is named in honour of the curator of AMNH, New York, Dr. Lee Herman who loaned this nice species for my studies.

Figures

FIGURE 5. Surface of elytra of Mimogonia. A: M. adisi, B: M. hanagarthi, C: M. hermani, D: M. huggerti. Scale bar: 0.25 mm.

FIGURES 1 – 3. Details of Mimogonia. 1: M. adisi, 2: M. hermani, 3: M. hanagarthi; A: forebody, B: antenna, C: male right mesotibia in dorsal aspect, D: aedeagus. Scale bar A: 1 mm, B – D: 0.1 mm.