Bifidostylus gawlerensis, 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 : 50-51

Bifidostylus gawlerensis , new species

Figure 12, map 4, table 1, plates 4, 5

DIAGNOSIS: Recognized by the relatively large size (total length male 4.28), green coloration, translucent hemelytron, black setae on dorsum (pl. 4), and J-shaped endosoma with weakly sclerotized subapical secondary gonopore and wavy straps of nearly equal length (fig. 12, pl. 5). Endosomal structure most similar to that of B. finalis and B. newmanensis in being J-shaped and with equal length straps. Distinguished from B. finalis by the almost transparent hemelytron, weakly darkened setae, and apically straight endosomal straps in that species; shares with B. newmanensis green coloration, translucent hemelytron, black setae on the dorsum, and large eyes, but differing by B. newmanensis having distally straight endosomal straps.

DESCRIPTION: MALE: Total length 4.28, pronotum width 1.23. COLORATION (pl. 4): Pale green; membrane weakly fumose. SUR- FACE AND VESTITURE (pl. 4): Dorsum weakly polished and shining, weakly crenulate, covered with recumbent, black, simple setae. STRUCTURE: Head (pl. 4): Eyes large, protuberant, vertex relatively narrow; frons not inflated, not surpassing anterior margin of eye; eye occupying two-thirds height of head; antenna inserted just above ventral margin of eye, eye moderately emarginate; antennal segment 2 long (1.45), 1.60 times width of head; labium not quite reaching posterior margin of mesosternum. Thorax (pl. 4): Pronotum with anterior lobe demarcated, calli distinct laterally, posterior lobe flat to very weakly elevated, lateral and posterior margins nearly straight; mesoscutum rather broadly exposed. Hemelytron: Not obviously elongate, corial margin nearly straight, cuneus short, broadly triangular, lateral margin rounded. GENITALIA (fig. 12, pl. 5): Pygophore: Broadly conical. Endosoma: J-shaped, dorsal and ventral straps undulating, appearing intertwined, contiguous basally and subapically, separated medially; ventral strap sinuous, of equal thickness throughout, except attenuate apically; dorsal strap sinuous, strongly bifid subapically; interstrap membranous region billowy with secondary gonopore faintly sclerotized, with incomplete ring and long thin basal sclerite. Phallotheca: Apical portion pitcher shaped, broad subapically, aperture broadly ovoid, situated on dorsal surface; basal portion with relatively long, practically reaching anterior margin of pygophore in situ. Parameres: Left paramere with dorsoposterior margin slightly elevated above anterior and posterior processes; posterior process relatively long, straight, with undulating ventral surface; anterior process short, produced, long seta not observed. Right paramere lost during dissection.

FEMALE (pl. 4): Elongate ovoid, costal margin of hemelytron weakly convex; total length 3.94, pronotum width 1.19. Coloration, surface, and vestiture similar to male. Eyes much smaller than in male, vertex broad; frons modestly inflated and slightly projecting beyond anterior margin of eye.

ETYMOLOGY: Named for the Gawler Ranges in South Australia, locality for all known specimens.

HOST: Recorded from Myoporum platycarpum (pl. 39F) ( Scrophulariaceae ).

DISTRIBUTION (map 4): Known only from the Gawler Ranges in South Australia.

DISCUSSION: The body, and particularly the pronotum, appear distinctly flattened in the only known female specimen of this taxon.

HOLOTYPE: AUSTRALIA: South Australia: Gawler Ranges National Park: ca. 3.7 km S of Pine Well, 32.37141°S 135.29219°E, 186 m, 16 Nov 2012, M. Cheng, G.S. Taylor, R. Kittel & D. McLaughlin, Myoporum platycarpum R. Br. platycarpum (Scrophulariaceae) , det. SA Herbarium BS838-902, 1♂ (AMNH_PBI 00387455) (SAMA).

PARATYPES: AUSTRALIA: South Australia: Hiltaba: ca. 1 km N of the southern boundary, on Gawler Ranges Road, 32.17327°S 135.05894°E, 126 m, 12 Nov 2012, M. Cheng & G.S. Taylor, Myoporum platycarpum R. Br. platycarpum (Scrophulariaceae) , det. SA Herbarium BS838-902, 1♀ (00387456) (UNSW).