Hypsohapsis, Hoey-Chamberlain, Rochelle & Weirauch, Christiane, 2016

Hoey-Chamberlain, Rochelle & Weirauch, Christiane, 2016, Two new genera of big-eyed minute litter bugs (Hemiptera, Schizopteridae, Hypselosomatinae) from Brazil and the Caribbean, ZooKeys 640, pp. 79-102 : 88-93

Hypsohapsis gen. n. Figures 8, 9, 10, 11

Type species.

Hypsohapsis takiyae sp. n.

Diagnosis.

Distinguished among Hypselosomatinae by first labial segment not dorsally expanded; clypeus with five macrosetae; 3 not 1 or 2 pairs of ventrolateral macroseta at base of mouthparts (bucculae and first two labial segments); fore femur without macrosetae; areolate fore wing with only traces of veins (Fig. 8); sternite eight large and capsule like; process of tergite eight looping internally and projecting externally as a long, thin process; a second scale like genitalic process with uncertain origin; sternite nine with a large lobe to the left at end (Figs 9 and 10).

Description.

Male. Coloration. Head, thorax, and forewing brown (including eyes); legs yellow; basal portion of coxae brown, abdomen pale; genital capsule and genitalia brown. Surface and Vestiture. Clypeus with five macrosetae (two basal, three at tip); first labial segment with a pair of stout lateral macrosetae, second labial segment with pair of lateral macrosetae, buccula with pair of lateral macrosetae; fore femora without anterior macroseta; ratio of length of hind tibia to width of pronotum 0.97; hind tibia with five erect macrosetae ventrad on distal half. Structure. ratio of pronotal collar length to pronotum length 0.21; disc steeply declivous, not decurrent anteriorly (Fig. 8); collar slightly depressed below pronotum (Fig. 9); postnotum of unknown shape (requires further dissection of specimen); ratio of height of fore femora to length of fore femora 0.30; tarsal formula 2-3-? (third tarsal segment hind of hind legs missing); pretarsus of front and middle legs with inflated arolia (pretarsus of hind leg unknown); elytrous with areolate and irregular coarse sculpturing; abdomen with seven pairs of spiracles (on sternites two through eight). Genitalia. Hind margin of sternite seven simple; left side of tergite eight with a process that loops around internally and then projects externally as a long thin process; right side of tergite eight with small projection and large external spiracle; left side with short slender projection that connects to sternite; sternite eight free of sternite seven; sternite eight large and capsule like, with elongated slender left margin that connects to tergite eight left-sided process; a flap like genitalic process (flp) on the left side posteriorly to segment eight is of uncertain origin; anophoric appendage absent; sternite nine lobe shaped to the left (in dorsal perspective) (Figs 9, 10 and 11).

Female. Unknown.

Etymology.

“Hypso” from Hypselosoma , the type genus of Hypselosomatinae, and “hapsis” which is Greek for “net” in reference to the netlike appearance of the fore wing due to their areolate and irregular, coarse sculpturing. The gender is feminine.

Notes.

This currently monotypic genus is described from a single male specimen from southern Brazil. It is clearly set apart from all described genera of Hypseloso matinae by the unique and complicated structure of the male genitalia. In particular, the seemingly internal process of segment eight is unknown among described Dipsocoromorpha. Flap like processes of the genitalia occur in other Schizopteridae , but the origin of this process in Hypsohapsis is unclear. Unfortunately, dissection of the abdo men would be necessary for a detailed study of the above mentioned structures. Since only one specimen of the species was collected, we have limited our observations to studying the intact abdomen.

Distribution.

One specimen of this genus has been collected in Brazil.