Erysivena emeraldensis, 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 : 167-173

Erysivena emeraldensis , new species

Figures 6C, 14 , 54 , 55 ; map 4

DIAGNOSIS: Defined by the following characters: medium size; head strongly expanded anteriorly; eyes large; labium extending to metacoxae; tip and inner half of cuneus red, forewing membrane veins red; pygophore with two tergal processes, and broad far right lateral tergal lobe; elongate right lateral lobe or process on phalloguide with two spines on margin; left lateral tergal process linear, elongate, margins serrate; right tergal process, short, arising under tergal lobe; left paramere moderately expanded, sensory lobe broad and angular, apophysis moderately elongate, hooked apex; right paramere C-shaped, medial flange more subapical on inner dorsal margin, subquadrate with slightly serrate margin, apex very weakly curved with smooth margins; aedeagus with PES simple, unbranched, distally sparsely serrate; DES2 bifurcate, not expanded medially; DES1 simple, short, distally serrate only; female laIRL uniform width without spiniferous basal lobe; mIRL two-thirds height of laIRL, subrectangular.

DESCRIPTION: Male: Midsized, body length 3.65–3.76, pronotal with 0.89–0.96 mm. COLOR-

ATION: Dorsum yellowish green; cuneus tip and inner half dark red, remainder pale green-yellow; forewing membrane dark gray-brown with slightly darker patches laterally and in major cell, membrane veins red with color confined to veins (fig. 14). VESTITURE: Dorsum with moderately dense distribution of light-brown simple setae. STRUC- TURE: Head: Strongly expanded anteriorly; eyes large, extending well beyond anterolateral angle of pronotum; antennae with AI 1.3× vertex width, AII 1.4× pronotal width; labium medium length, extending to metacoxae. Hemelytra: Cuneus and major cell of membrane elongate, major membrane vein straight, parallel to cuneus (fig. 14). GENITALIA: Pygophore: Dorsal margin strongly concave, asymmetrically; two sclerotized tergal processes, positioned left lateral and right lateral; left tergal process, linear, elongate, margins and apex serrate, apex not expanded; right tergal process, short, narrowing apically, apex pointed with few small serrations, base concealed behind tergal lobe; far right lateral tergal lobe present, broad; ventral margin of genital opening sinuous, slightly concave on left side; phalloguide with elongate process on right side ventrad to right paramere articulation, lobe flattened and curved, with two spines, one on dorsal margin and one on right lateral margin (fig. 54A). Left paramere: Moderately expanded medially; sensory lobe broad, outer margin angular; apophysis moderately elongate, inner margin serrate subapically; apex hooked (fig. 54B). Right paramere: C-shaped; medial flange on inner dorsal margin directed inward, in more subapical position, expanded and subquadrate in shape; apex short and very weakly curved; medial flange with lightly serrate margin, apex smooth; setae absent (fig. 54C). Phallotheca: Dorsal opening large, distal to medial; round distally; not compressed; slight subapical tumescence on ventral surface; lobes on dorsal margin absent (fig. 54D). Aedeagus: Spicule arrangement (fig. 54): PES left ventrolateral to and partially sheathing secondary gonopore, DES2 dorsal to secondary gonopore and PES, DES1 left lateral to DES2, base of PES originating slightly distad to base of secondary gonopore, DES2 and DES1 originating proximal to base of secondary gonopore (fig. 54F); PES simple, unbranched, apex acuminate, sparsely nificantly shorter than first and second spicules, serrate in distal third, medial process absent (fig. basal keel (DESk) moderately short (fig. 54E, F).

54); DES2 bifurcate in distal third, branches sub- Female: Subequal in size to males, on average equal, left branch bent downward, distally serrate, slightly smaller, body length 3.49–3.86 mm, promedially serrate before bifurcation point on right notal width 0.95–1.06 mm. GENITALIA: IRS margin (fig. 54F), not expanded medially; DES1 posterior margin medially convex (fig. 55B). simple, unbranched, apex blunt and serrate, sig- Interramal lobes (fig. 55B): laIRL curved inward, uniform width, base spiniferous without lobe; mIRL two-thirds height of laIRL, subrectangular, distally round and serrate.

ETYMOLOGY: Named after the type locality, Emerald Creek, on the Atherton Tablelands in northeastern Queensland.

HOST PLANT: Known from a morphologically distinct population, with the phrase name Callitris intratropica “Emerald Creek ” (fig. 6C). This Callitris intratropica population is known only from this locality, where it grows on the banks of a large creek, and may represent a new species (Paul Gadek, personal commun.) ( Pye et al., 2003).

HOLOTYPE: AUSTRALIA: Queensland: Emerald Creek Falls State Forest , falls carpark, 17.05369 ° S 145.53947 ° E, 512 m, 31 May 2006, Cassis, Barrow, Finlay, and Symonds, Callitris intratropica (Emerald Creek) , det. RBG Sydney

(see Pye et al., 2003), 1♂ ( AMNH _PBI 00005723) ( QM).

PARATYPES: AUSTRALIA: Queensland: Emerald Creek Falls State Forest, falls carpark, 17.05369 ° S 145.53947 ° E, 512 m, 31 May 2006, Cassis, Barrow, Finlay, and Symonds, Callitris intratropica (Emerald Creek) , det. RBG Sydney (see Pye et al., 2003), 4♀ ( AMNH _PBI 00005724–00005727) ( AM), 2♀ ( AMNH _PBI 00005728, 00005729) ( QM). Emerald Creek at Emerald Creek Falls car park, 17.05286 ° S 145.5414 ° E, 488 m, 19 Apr 2005, C. Symonds, Callitris intratropica (Emerald Creek) , det. Field ID (ref. Pye et al., 2003), 1♂ ( AMNH _PBI 00016551) ( AM).

OTHER SPECIMENS EXAMINED: AUSTRA- LIA: Queensland: Emerald Creek Falls State Forest, falls carpark, 17.05369 ° S 145.53947 ° E,

512 m, 31 May 2006, Cassis, Barrow, Finlay, and Symonds, Callitris intratropica (Emerald Creek) , det. RBG Sydney (see Pye et al., 2003), 4 juv. (AMNH_PBI 00005719–00005722) (AM), 2 juv. (AMNH_PBI 00005717, 00005718) (QM).

DISTRIBUTION: From one locality only at Emerald Creek, on the western side of the Lamb Range, within Dinden National Park on the Atherton tablelands in northeasterm Queensland (map 4). This area has small rocky gorges surrounded by dry savannah forest and creeks.

REMARKS: Erysivena emeraldensis is most closely related to E. paluma and is distinguished from it by two dorsal tergal processes on the pygophore (cf. figs. 54 and 68); the left lateral tergal process is downturned distally and linear in shape (cf. clubbed distally and projected outward); the left paramere is only moderately expanded medially, with an angular sensory lobe and hooked apex (cf. strongly expanded, with rounded sensory lobe and unhooked apex); the right paramere has a medial flange positioned more subapical and is quadrate in shape (cf. medial flange more medial and rounded in shape); right paramere apex is very short and barely curved; the phallotheca has a large (cf. small) dorsal opening; and DES2 is not expanded medially. See also E. paluma for further remarks.

Figures

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

FIG. 54. Male genitalia of Erysivena emeraldensis. A. Pygophore, dorsal with left lateral detail. B. Left paramere, ventral. C. Right paramere, ventral. D. Phallotheca, right lateral. E. Aedeagus, left lateral. F. Aedeagus, right lateral. Scale bars = 0.1 mm.

FIG. 55. Female genitalia of Erysivena emeraldensis. A. Bursa copulatrix, ventral. B. Posterior wall, dorsal. Scale bar = 0.1 mm.