Macrodarumoides, Che, Yanli, Zhang, Yalin & Wang, Yinglun, 2012

Che, Yanli, Zhang, Yalin & Wang, Yinglun, 2012, A new genus of the tribe Issini (Hemiptera, Fulgoromorpha, Issidae) from China, ZooKeys 228, pp. 51-58 : 52-53

Macrodarumoides gen. n.

Type species.

Macrodarumoides petalinus sp. n.

Description.

Head (including eyes) distinctly narrower than pronotum (Fig. 1). Vertex long and horizontal, approximately triangular, disc depressed, with 2 depressions near hind margin; anteriorly strongly angularly convex and posteriorly slightly angularly concave, lateral margins carinate; width at apex distinctly shorter than length in midline (Fig. 1). In dorsal view, vertex and frons extending far beyond eyes (Fig. 1). Ocelli present. Frons long and nearly triangular, disc obviously elevated, median carina present (Fig. 2); in lateral view frons curved towards apex (Fig. 3). Clypeus elevated with central carina, situated the same plane as frons (Fig. 2). Rostrum long, reaching to hind-trochanter. Pronotum short laterally, anterior margin convex and arched, posterior margin horizontal to slightly convex; disc elevated with pits (Fig. 1). Mesonotum nearly triangular, with 2 pits along lateral margins; disc slightly elevated, with or without carina (Fig. 1). Tegmen (Figs 1, 3, 7) leathery and approx imately elliptical, claval suture present; longitudinal veins prominent, between them with a number of obscure veinlets, rendering the whole surface faintly reticulate. Wing (Fig. 8) large, veins distinct and netlike, longer than half of tegmen, apically forming 3 lobes. Legs (Fig. 3) relatively long, not dilated; lateral margin of hind tibia with 2 teeth. Spinal formula of hind leg (5-6)- 11-2, indicating number of spines at apex of hind tibia and tarsomeres I and II.

Male genitalia symmetrical; anal segment (Fig. 10) in dorsal view longer than greatest width; pygofer (Fig. 9) without spines; aedeagus (Figs 11-13) tubular, symmetrical and shallowly U-shaped, divided distally into a dorsal and ventral lobe, the latter sometimes split, a pair of elongate lateral lobes and a pair of spiniform processes lying ventrolaterally and directed either cephalad or caudad. Genital style (Fig. 9) subtrianglar, apical margin curved and arched, basal margin convex near apex and dorsal margin produced into a single process.

Female genitalia withanal segment (Fig. 15) in dorsal view elliptical, length nearly equal to the widest part. Apex of endogonocoxal process without lobe and anterior connective lamina of gonapophyse VIII with 3 teeth in lateral group. First valvula (Fig. 14) with teeth, ninth tergum and third valvula subquadrate. Pregenital sternite (Fig. 16) with apical margin convex at mid.

Diagnosis.

This genus is similar to Eusarima Yang, 1994 according to body shape and trilobed wings, but can be differentiated by the following characteristics: 1) vertex long, approximately triangular, the latter with vertex short and subquadrangular; 2) wings narrow, netlike and anal lobe rudimentary, the latter, wings broad, longitudinal veins distinct with little cross veins, and anal lobe developed.

This genus resembles Macrodaruma Fennah, 1978 (Figs 4-6), but can be distinguished from the latter by: 1) lateral margins of vertex and anterior margin of pronotum not carinated, the latter, distinctly and foliately carinated; 2) tegmen with claval suture present, the latter, claval suture absent; 3) wing trilobed, the latter, not bilobed.

Etymology.

This generic name “-oides” from Greece suffix refers to the resemblance of this genus to Macrodaruma Fennah. The gender is masculine.

Distribution.

China (Guangxi, Yunnan).