Jamitettix:guamensis, Metcalf, 1946

Metcalf, Z. P., 1946, Homoptera, Fulgoroidea and Jassoidea of Guam, Insects of Guam II, Honolulu, Hawaii: Bernice P. Bishop Museum Bulletin 189, pp. 105-148 : 119-120

1. Jamitettix:guamensis , new species ( fig. 10 , a-e).

Crown slightly conically produced in front, finely rugulose with the rugae radiating from the apex of crown; two faint and somewhat irregular transverse carinae below the ocelli; posterior margin broadly, circularly incised, nearly parallel to anterior margin. Face faintly rugulose; postclypeus narrow, slightly longer than broad; the dorsal margin nearly three times as wide as the ventral margin; preocular region broad; juga nearly semicircular in outline. Pronotum nearly twice as broad as its median length; the anterior margin produced beyond the anterior margin of the compound eyes; posterior margin shallowly excavated, with the entire surface finely transversely rugulose. Mesonotum about twice as broad as long, anterior area smooth; posterior area finely rugulose.

Last ventral segment of. the female but little longer than the penultimate; posterior margin slightly notched at the median line; the posterior border shallowly crenulate. Male plate broadly triangular basad, produced caudad into acuminate processes which

curve dorsad. Pygofer fairly stout, exceeding the plate slightly, ·with about a dozen stout setae.

Internal male genitalia: aedeagus elongate, tubular; styles slender, elongate, almost as long as the plates, broadly curved, meeting on the median line caudad; lateral processes short, stout, the apices curved laterad.

General color olive-buff with the face, crown, pronotum, and mesonotum heavily mottled with blackish fuscous. Venter and legs heavily spotted with blackish fuscous. Tegmina translucent, olive-brown; veins brown.

Holotype female, Upi Trail, May 5, Usinger ; allotype male, Machanao , June 30, Swezey ; paratypes: one female, Upi Trail , May 5, Swezey , one female, Sinajana, June 8, Usinger .

This species differs chiefly from kotonis Matsumura in much heavier, darker markings and in the decidedly different genitalia. In kotonis, the last ventral segment is broadly excavated; in guamensis , the last ventral segment is slightly notched.

Figures

FIGURE 10.-Jamitettix guamensis: a, dorsal view of head and thorax; b, frontal view; c, ventral view of female genitalia; d, lateral view of male genitalia; e, ventral view of male genitalia.