Erysivena endlicheriphila, Symonds & Cassis, 2018

Symonds, Celia L. & Cassis, Gerasimos, 2018, Systematics And Analysis Of The Radiation Of Orthotylini Plant Bugs Associated With Callitroid Conifers In Australia: Description Of Five New Genera And 32 New Species (Heteroptera: Miridae: Orthotylinae), Bulletin of the American Museum of Natural History 2018 (422), pp. 1-229 : 173-174

Erysivena endlicheriphila , new species

Figures 14 , 56 , 74 ; map 4

DIAGNOSIS: Defined by the following: medium size; head strongly expanded anteriorly; eyes midsized; labium extending to mesocoxae; tip of cuneus and wing membrane veins red; pygophore with three tergal processes, far right lateral tergal lobe, elongate phalloguide; left tergal process longer than right processes; left paramere strongly expanded, subtriangular, sensory lobe prominent, apophysis moderately elongate, apex hooked; right paramere C-shaped, expanded medial flange in inner margin with spiniferous tip, apex expanded and flattened with scalloped, serrate margin; aedeagus with PES, simple, acuminate apically, with smooth margins and elongate medial process; DES2 unbranched, without subdistal threadlike process; DES1 unbranched, margins smooth, bifurcate at apex forming large fork, basal keel (DESk) elongate; female mIRL half height of laIRL, subquadrate, margin serrate; laIRL slightly curved inward at apex, uniform width, with spiniferous base and large spiniferous basal lobe.

DESCRIPTION: Male: Midsized, elongate, body length 3.76–4.03 mm, pronotal width 0.99–1.03 mm. COLORATION: Dorsum yellowish green, faded; cuneus tip red; forewing membrane uniform gray-brown, membrane veins red with color confined to vein (fig. 14). VESTITURE: Dorsum with moderately dense distribution of lightbrown simple setae. STRUCTURE: Head: Strongly expanded anteriorly; eyes midsize, extending slightly beyond anterolateral angle of pronotum; antennae with AI 1.2× vertex width, AII 1.3× vertex width; labium medium length, extending to metacoxae. Hemelytra: Cuneus and major cell of membrane moderately elongate, major membrane vein straight (fig. 14). GENITA- LIA: Pygophore: Dorsal margin of genital opening strongly concave, asymmetrically; three sclerotized, linear tergal processes, positioned left lateral, right lateral, and right medial; left tergal process longer than two right processes; left tergal process slightly curved downward, apex acuminate with smooth margins, small serrations on margin at base; right and right medial tergal processes adjoined at base, margins serrate; far right lateral tergal lobe present, elongate, weakly narrowing distally, apex round; ventral margin convex on left side; phalloguide with elongate process ventrad to right paramere articulation, apex bulbous, without any spines on margin of process (fig. 56A). Left paramere: Strongly expanded medially, subtriangular; sensory lobe prominent, expanded, margins straight, so lobe does not appear swollen; apophysis moderately elongate, inner margin smooth; apex hooked (fig. 56B). Right paramere: C-shaped; medial flange on inner margin directed downward, expanded and constricted to point; subapical dorsal margin with few spines; apex, short, weakly curved, laterally flattened into fan shape; tip of medial flange and margin of apex with large spines (fig. 56C). Phallotheca: Dorsal opening small, elongate, subovate, closed medially; round distally; lobe present on basal end of dorsal opening; weak lateral bicompression subapically on ventral surface, but not flattened (fig. 56D). Aedeagus: Spicule arrangement (fig. 56): PES left ventrolateral to and partially sheathing secondary gonopore, DES2 left dorsolateral to secondary gonopore, DES1 left lateral to DES2, base of all spicules originate proximal with base of secondary gonopore (fig. 56E, F); PES simple, unbranched, with elongate medial process projected distally, distally acuminate, margins smooth (fig. 56F); DES2 unbranched, without subdistal threadlike process (fig. 56F); DES1 simple, unbranched, margins smooth, apex evenly bisected, basal keel (DESk) elongate (fig. 56E, F).

Female: Slightly smaller than male, body length 3.46–3.63 mm, pronotal width 0.94–0.99 mm. GENITALIA: IRS, posterior margin medially convex. Interramal lobes (fig.74): mIRL entirely separated from laIRL; laIRL uniform width, straight, base spiniferous with large spiniferous lobe; mIRL half height of laIRL, subquadrate, margin serrate.

ETYMOLOGY: Named after the host plant, Callitris endlicheri in combination with Greek phila meaning lover.

HOST PLANT: From Callitris endlicheri (table 2).

HOLOTYPE: AUSTRALIA: New South Wales: 4 km S of Jennings, on New England Hwy , 28.96911 ° S 151.93263 ° E, 854 m, 11 Jan 2005, G. Cassis & A. Cassis, Callitris endlicheri , det. RBG Sydney, 1♂ ( AMNH _ PBI 00016523 ) ( AM).

PARATYPES: AUSTRALIA: New South Wales: 4 km S of Jennings, on New England Hwy, 28.96911 ° S 151.93263 ° E, 854 m, 11 Jan 2005, G. Cassis & A. Cassis, Callitris endlicheri , det. RBG Sydney, 1♂ ( AMNH _PBI 00016522), 2♀ ( AMNH _PBI 00016524, 00016525) ( AM).

DISTRIBUTION: Known from one locality in New South Wales, near Jennings, on the Great Dividing Range, just south of the Queensland border (map 4).

REMARKS: Erysivena endlicheriphila is very closely related to E. sydneyensis , but can be differentiated by the medial and right pygophore tergal processes shorter than the left lateral process (cf. figs. 56 and 73); the lack of a medial threadlike process on DES2; the presence of a large fork at the apex of the DES1 spicule; and an expanded fanlike apex on the right paramere. See also E. sydneyensis for further remarks.

Figures

FIG. 14. Erysivena species, dorsal habitus photographs of males. Scale bar = 1 mm.

FIG. 56. Male genitalia of Erysivena endlicheriphila. A. Pygophore, dorsal. B. Left paramere, ventral. C. Right paramere, dorsal. D. Phallotheca, right lateral. E. Aedeagus, ventral. F. Aedeagus, dorsal. Scale bars = 0.1 mm.

FIG. 74. Erysivena female genitalia: right interramal lobes of species, posterior wall of E. schuhi, dorsal. Scale bar = 0.1 mm.