Sonoma streptophorophallus, Ferro & Carlton, 2010

Ferro, Michael L. & Carlton, Christopher E., 2010, Fifteen new species of Sonoma Casey from the eastern United States and a description of the male of Sonoma tolulae (LeConte) (Coleoptera: Staphylinidae: Pselaphinae), Insecta Mundi 2010 (137), pp. 1-44 : 21-22

11. Sonoma streptophorophallus new species

Fig. 11 , 28 ; Map 11

Description: Holotype, male. Measurements: head 0.32 long, 0.39 wide; pronotum 0.42 long, 0.44 wide; elytra 0.64 long, 0.36 wide; antennomeres 1-11 total 0.94; total length 2.10.

Head. Eyes large, maximum length in dorsal view 1.1x length of first antennal segment, with approximately 45 facets. Antennomere 2 approximately 3/5 width of 1; 3 smallest.

Thorax. Elytra with row of five sutural foveae in basal one half; central row of two large foveae in basal 1/4. Winged.

Abdomen. Transverse row of microtrichia on first visible tergite narrowly interrupted at midline. No abdominal foveae. Basal pubescence present on all visible ventrites.

Aedeagus. Asymmetrical. Left paramere: base parallel sided; main body short; apical 1/3 dagger shaped, attached subapically to base, blade expended apex of endophallus, extremely acute; setose process bearing 8 thick setae. Endophallus: wide to apex; lateral digitate process wide, broadly emarginate along posterior margin, not curved; apex “U” shaped in dorsal profile and curved ventrally. Right paramere: base bulbous; setose process shallow with 8 apical setae, dorsolateral seta bifid at tip; apical 2/3 narrow, sinuate, lateral constriction at level of digitate process of endophallus deep; apex with laterally curved claw. Scattered moderately coarse tubercles on dorsal and lateral surface of left paramere and dorsal surface of right paramere and sparse fine tubercles on lateral process of endophallus.

Type Material. Holotype, male: * 17 mi NW Amherst Amherst Co., Va. VIII–12–1975 DSChandler / shifting oak litter DSChandler ( DENH) (1M). Deposited in FMNH.

Geographical Distribution. Sonoma streptophorophallus is represented by a single specimen collected in central Virginia (Amherst Co.).

Comments. Sonoma streptophorophallus was collected in August from “oak litter”.

Sonoma streptophorophallus has aedeagal characters unlike any other Sonoma . The left paramere is very similar to S. tridens but the “U” shaped apex of the endophallus in S. streptophorophallus will separate the two species. Both the apex of the endophallus and the laterally curved claw at the apex of the right paramere are unique to S. streptophorophallus and serve to distinguish it from all other species in the genus.

Etymology. The specific epithet is derived from streptophoros (Greek, “collared”), and phallus (Greek, “penis”), referring to the unique form of the endophallus apex.

Figures

Figure 11-16. Habitus images. 11) Sonoma streptophorophallus, holotype. 12) Sonoma nhunguyeni, holotype. 13) Sonoma tridens, holotype. 14) Sonoma holmesi, holotype. 15) Sonoma tishechkini, holotype. 16) Sonoma mayori, holotype. Scale lines equal 1.0 mm.

Figure 28-31. Aedeagus images.28) Sonoma streptophorophallus, aedeagus (dorsal view). 29) Sonoma nhunguyeni, aedeagus (dorsal view). 30) Sonoma tridens, aedeagus (dorsal view). 31) Sonoma holmesi, aedeagus (dorsal view). Scale lines equal 0.1 mm. Right side of figure is anatomical left.