Saigona henanensis sp. nov.

(Figs. 5, 36–45)

Description

ɗ, BL: 15.4 mm; HL: 2.8 mm; HW: 1.4 mm; FWL: 11.7 mm.

General color ochraceous, marked with fuscous and brown. Vertex and most part of genae ochraceous, areas surrounding ocellus and antenna beneath eye yellowish. Frons yellowish brown; postclypeus, anteclypeus, and labrum fuscous. Rostrum pale brown, tip black. Pronotum ochraceous, suffused with blackish brown; lateral, ventrally curved areas with broad, triangular, yellowish spot. Mesonotum ochraceous, marked with fuscous. Thorax ventrally dark brown, marked with yellowish brown. Legs fuscous, marked with pale brown; coxae blackish brown, middle coxae much paler; femora with numerous pale brown speckles; tibiae pale brown with two broad fuscous rings basally and medially respectively; tarsi and claws brown; tips of apical spines on hind tibiae and tarsi black. Abdomen ventrally yellowish, dorsally dark brown with yellowish brown spots; pygofer and parameres fuscous.

Head (Figs. 5, 36–38) short, shorter than pronotum and mesonotum combined. Vertex (Figs. 5, 36) with cephalic process relatively short and robust, with median carina only conspicuous at basal 1/3, remainder faint; lateral carinate margins curved anterior to eyes. Frons (Fig. 38) with lateral carinae reaching to frontoclypeal suture.

Mesonotum (Figs. 5, 36) tricarinate on disc, with median carina conspicuous but not reaching extreme tip. Fore wing venation as in Fig. 42.

Male genitalia with pygofer (Figs. 39–41) large, broad in lateral view, posterior margin straight, excavated over apical 1/5 to accommodate anal tube, length ratio of upper margin to lower margin about 1: 1.5. Anal tube (Figs. 39, 40) large and nearly triangular in lateral view (Fig. 40), large and oval in dorsal view (Fig. 39), ratio of length to width at middle about 1.6: 1. Anal style (Figs. 39, 40) narrow, long. Parameres (Figs. 40, 41) relatively large and broad in lateral aspect (Fig. 40), apex sharply rounded, protruded posteriorly. Aedeagus (Figs. 43–45) with phallobasal conjunctival processes spiraled dorsally; phallobase narrow, long, curved dorsally, with apical, dorsal, membranous lobe stout and large, produced caudad in lateral view (Fig. 44), without spines; in ventral aspect (Fig. 43), apical, ventral, membranous lobe triangular, converging toward apex, produced toward base of phallobase, covered with numerous fine spines at apex.

Material examined

Holotype ɗ, China, Henan, Xishan, Taiping, 17.vii.1957, Y. S. Shi (IZCAS).

Etymology

This species is named for its occurrence in Henan Province of China.

Remarks

This species is similar to S. ussuriensis (Lethierry, 1878) and S. fuscoclypeata sp. nov. but can be distinguished from the two species by its frons with lateral carinae reaching to frontoclypeal suture and the aedeagus with phallobasal conjunctival processes spiraled dorsally (Figs. 43–45).

Distribution

China (Henan).