Bifidostylus finalis, Randall T. Schuh & Michael D. Schwartz, 2016

Randall T. Schuh & Michael D. Schwartz, 2016, Nineteen new genera and 82 new species of Cremnorrhinina from Australia, including analyses of host relationships and distributions (Insecta: Hemiptera: Miridae: Phylininae: Cremnorrhinini), Bulletin of the American Museum of Natural History 401, pp. 1-279 : 49-50

Bifidostylus finalis , new species

Figure 11, map 4, table 1, plates 4, 5

DIAGNOSIS: Recognized by the moderate size (total length male 3.58), green-yellow coloration, almost transparent hemelytron (pl. 4), and the J-shaped endosoma without an obvious sclerotized secondary gonopore and apically straight straps of unequal diameter and equal length (fig. 11, pl. 5). Endosomal structure most similar to that of B. gawlerensis and B. newmanensis in being J-shaped and with equal-length straps. Distinguished from both of those species by their more opaque hemelytron and black setae on the dorsum and from B. gawlerensis by its wavy, strongly bifid dorsal endosomal strap (fig. 11).

DESCRIPTION: MALE: Moderately elongate with weakly rounded lateral margins; total length 3.58, pronotum width 0.93. COLOR ‐ ATION (pl. 4): Green-yellow, including appendages, hemelytron almost transparent, membrane very slightly infuscate with an elongate dark streak at apex of cells. SUR- FACE AND VESTITURE (pl. 4): Body surface smooth, polished, and weakly shining; dorsum clothed with reclining, moderately long, dark, simple setae. STRUCTURE: Head (pl. 4): Eyes globular, contiguous with pronotum, vertex moderately broad, frons somewhat swollen and slightly protruding beyond anterior margin of eye; eye occupying slightly more than two-thirds height of head; antenna inserted at just above ventral margin of eye, eye slightly emarginate; antennal segment 2 moderately long (0.94), 1.45 times width of head; labium reaching to base of mesocoxa. Thorax (pl. 4): Pronotum with margin sinuous, depressed, calli indistinct; posterior lobe weakly elevated. Mesoscutum rather broadly exposed; scutellum flat, triangular. Hemelytron: Corium not noticeably elongate, cuneus more strongly so, elongate triangular. GENITALIA (fig. 11, pl. 5): Pygophore: Broadly conical. Endosoma: Jshaped, slender, recurved to left side in dorsal view; dorsal and ventral straps contiguous except subapically, with subequal length; dorsal strap of equal thickness throughout; ventral strap narrowed apically; without secondary gonopore in membranous interstrap region. Phallotheca: Apical region conical, aperture gradually widening apically, situated on dorsal surface; basal region with length equal to exposed apical portion, reaching to middle of pygophore in situ. Parameres: Left paramere with dorsoposterior margin not elevated dorsad of anterior and posterior processes; posterior process short, straight, and deflected; anterior process short and slightly projecting, long seta not observed. Right paramere relatively short, apex broad, posterior prominence larger than anterior.

FEMALE: Unknown.

ETYMOLOGY: From the Latin, finalis , “pertaining to the end,” in reference to this being the last species we recognized in collections of Australian Cremnorrhinina.

HOST: Recorded from Eremophila ionantha (pl. 38C–E) ( Scrophulariaceae ).

DISTRIBUTION (map 4): Known only from the type locality in Western Australia east of Norseman on the Eyre Highway.

HOLOTYPE: AUSTRALIA: Western Australia: 115.4 km E of Norseman, 32.05143°S 122.9675°E, 600 m, 23 Oct 1996, Schuh and Cassis, Eremophila ionantha Diels (Scrophulariaceae) , det. PERTH staff PERTH 0 5056152, 1♂ (AMNH_PBI 00372025) (WAMP).