— 8o- 



Described from a single female example (No. 6i6). This spe- 

 cies has much the appearance of a Cicadiila, in which genus it might 

 readily be placed, but for the characteristic venation of the elytra. 



8. Thamnotettix flavocapitata n. sp. 



Form of T. cruentata Panz. Pale yellow; head sulphur-yellow; elytra 

 fulvous brown 9, or olive-brown (^\ costa pale. Length: male, 5 mm.; fe- 

 male 5.5 mm. 



Male; Head as wide as the pronotum, posterior margin regularly con- 

 cave, anterior obtusely triangular. Vertex one-half longer at the middle than 

 at the eye; passage to the front rounded. Front narrow, the sides almost 

 straight. Clypeus widened toward the apex, which is truncated, and does 

 not surpass the cheeks. Outer edge of the cheeks but feebly arcuated above, 

 leaving a ratlier broad margin on the outer inferior side of the eye. Pro- 

 notum about one and one-half times as long as the vertex; hind edge scarcely 

 concave; sides short, the angles rounded. 



Color: Head sulphur-yellow, sometimes tinged with fulvous on the ver- 

 tex; antennal setae brown, eyes olive-brown. Pronotum olive-brown, paler 

 on the anterior margin, behind which is a fine concentric line usually more 

 or less obsolete. Beneath and legs pale yellow or whitish; propleura sulphur- 

 yellow; tips of the tarsal joints and claws brown. Scutelluni ferruginous 

 brown, the transverse impressed line blackish. Flytra olive-brown or fuscous, 

 subhyaline, with more or less distinct coppery reflections; costal half of the 

 corium whitish hyaline; discal nervures pale yellow, indistinct, the costal 

 clearer yellow; nervures of the clavus with a whitish spot next the suture. 

 Wings whitish hyaline, highly iridescent; nervures thick, fuscous. Tergum 

 black, broad, lateral and narrow posterior margins of the segments yellow. 

 Venter yellow, base of the connexivum and of the first ventral segment black. 

 Genitalia black; valves and plates yellow, the former with a dusky spot at 

 base. 



Genital pieces: Valve transverse; almost quadrangular, but with the outer 

 corners well rounded. Plates triangular, sides well rounded toward the base, 

 extreme tip a little produced; edges heavily fringed with long, soft hairs. 

 Margin of the pygofers oblique, leaving the short, stout hooks at the inner 

 acute apex of the triangular-ovate orifice; margin and apex a-rmed with ten 

 to fifteen stout bristles. Slender tips of the styles j^rojecting conspicuously 

 beyond the apex of the plates. 



Female. — Pronotum, scutellum and elytra fulvous brown; nervures of the 

 wmgs pale brown; abdomen yellow, disc of the tergum brown. The colors 

 are paler than in the male, and the vertex is proportionately shorter and 

 broader. Last ventral segment long; the rounded end with a broad notch 

 including a prominent central tooth; pygofers a very little shorter than the 

 ovipositor; at their base beset with rather short white bristles. 



Described from six males (No. 601) and three females (No. 154). 

 (To be continued.) 



