Coriojassus Evans, 1972

Dai, Wu, Dietrich, Christopher H. & Zhang, Yalin, 2015, A review of the leafhopper tribe Hyalojassini (Hemiptera: Cicadellidae: Iassinae) with description of new taxa, Zootaxa 3911 (1), pp. 1-142 : 4-5

Coriojassus Evans, 1972

Coriojassus Evans, 1972:649 Type-species: Coriojassus brunneus Evans, 1972

Brown with greyish white spots. Body robust, weakly depressed. Head in dorsal view much narrower than pronotum; crown short, rounded to face, anterior and posterior margins parallel; vertex and frontoclypeus transversely rugose ( Fig. 1A–D , G–J); face much broader than tall; gena broadly rounded, concavely emarginate below eye; rostrum expanded distally, extended slightly beyond front trochanter; anteclypeus flat, parallel-sided through most of length, slighly tapered distad of lorum, apex truncate, even with lower margin of gena; frontoclypeus convex; antennal ledge well developed, broad, slightly oblique; lateral frontal suture nearly obsolete, extended only short distance above antennal ledge; ocellus large, distinctly mesad of antennal pit and distant from eye ( Fig. 1 E, F). Pronotum strongly convex, with fine transverse rugae; lateral margins long, strongly carinate, evenly divergent posterad. Exposed part of mesonotum and scutellum together distinctly shorter than pronotum, transversely rugose; scutellar suture arched anterad, scutellum weakly convex with apex acute ( Fig. 1A, C , G, I). Forewing venation obscure in basal half; membrane hyaline except near base of costal field and base of clavus; with small black spots; erect setae conspicuous and distributed over entire surface; appendix well developed, extended to wing apex, slightly narrower than inner apical cell; three closed anteapical cells present; apical cells 2–4 short, parallel-sided; texture of inner apical cell same as that of appendix and adjacent apical cell ( Fig. 1B, D , H, J). Front femur with pair of dorsoapical macrosetae and preapical AD macroseta; AM with large distal setae and ca. 8 smaller preapical setae; intercalary row with several scattered setae; AV with several setae; tibia flat and bicarinate dorsally, rows AD and PD 5+3. Mesothoracic femur with two dorsoapical macrosetae and one preapical AD seta; AM, AV, and PD each with three or more preapical macrosetae; tibial rows AD and PD 6+5. Hind femur macrosetae 2+2+1 with antepenultimate seta as large as others; tibial rows PD, AD, and AV with 15, 12, and 12 macrosetae, respectively; tarsomere I without enlarged dorsoapical setae; plantar surface bare except for group of short setae laterally near apex; pecten with 3 platellae.

Male abdominal apodemes poorly developed. Pregenital sternite tapered, approximately 1.7 times longer than sternite VII. Genital capsule strongly retracted into segment VIII at rest, taller than long when everted; pygofer with caudal margin slightly concave in lateral view, with many macrosetae at dorsal margin and row of short setae more ventrad, ventral margin with short, broad process ( Figs 6 A, 7A, 9A). Subgenital plates separated basally, quadrate, depressed, shorter than pygofer, curved dorsally in lateral view ( Figs 6 E, 7H, 8D, 9B). Connective Tshaped, stem wide, abruptly broadened near midlength ( Figs 6 F, 7E, 9G). Style well developed, articulated to connective; apodeme robust, curved dorsad, apophysis tapered to apex, with one or more preapical projections ( Figs 6 C, 7F, 8A, 9C). Aedeagus articulated with connective ( Figs 6 F, 7E, 9G), preatrium short, bilobed in posterior view ( Figs 6 D, 7B, 8C, 9D); dorsal apodemes paired and broadly divergent in posterior view ( Figs 6 D, 7B, 8C, 9D); shaft slender and elongate, with pair of apical processes extended beyond gonopore, each bearing preapical lateral tooth; gonopore on posterior surface between bases of distal processes ( Figs 6 B, 6D, 7B, 7C, 8B, 8C, 9D, 9F). Female unknown.

Distribution. China, Thailand.

Figures

FIGURE 6. Coriojassus brunneus Evans. A. Pygofer side, lateral view; B. Aedeagus, lateral view; C. Style, lateral view; D. Aedeagus, caudal view; E. Subgenital plate, lateral view; F. Connective.

FIGURE 1. A – D, G – J, Dorsal and lateral habitus; E, F, Head, anteroventral view. A, B, E, Coriojassus brunneus Evans; C, D, F, Coriojassus zhejiangensis sp. nov.; G, H, Coriojassus loeiensis sp. nov.; I, J, Coriojassus yunnanensis sp. nov.