38 STREPSIPTERA 



Female. — Cephalothorax quadrate, bi-emarginate at apex, with the lube thus formed very 

 prominent; mandibles oblique and strongly toothed; spiracles subbasal. but not prominent. 



Type of genus. — P. peradeuiya, Pierce. 



Geographical distribution of species. — Parasites of leaf hoppers of the genus Thompsonidla. 



i. P. peradeuiya Pierce, Proc. U. S. Nat. Mus. Vol. 40, p. 5o5 (1911). — Ceylon. 

 PI. 3^ Fig. 3; PI. 4, Fig. 40. 



5. Genus PENTOZOCERA, Pierce 



Bruesia. Perkins, Rep. Exp. Stat. Hawaiian Sugar Planters' Ass. Bull. 1, Pt. 3. p. 102 (igo5) (preoc- 

 cupied). 



Pentoxocera. Pierce, Proc. Ent. Soc. Wash. Vol. 9, p. 80 (1908) (typographical error); Bull. U. S. 

 Nat. Mus. no. 66, pp. i5~j, i58 (1909). 



Pentozocera. Pierce, Proc. U. S. Nat. Mus. Vol. 40, p. 004 (191 1) (emendation). 



Characters. — Male. — Head very deeply concave behind, seen from above consisting only 

 of a narrow rim supporting the eyes and produced considerably in front of these to form the tip of the 

 blunt and wide frontal projection, at the sides of which the antennae are inserted. Mandibles very short, 

 not reaching one another; maxillae with first joint slender, enlarged toward apex, second joint foliaceous, 

 pilose, almost half as wide as long. Antennae seven-jointed, with the two basal joints simple, the 

 following excessively short, being produced laterally into an elongate and thin lamina, the first and last 

 of these laminae being larger than the others and capable of enclosing them in fan-like fashion. 

 Pronotum quadrate, cut off at sides by head ; mesonotum also deeply immersed within the posterior 

 cavity of the head. Elytra moderately long. Metanotum with praescutum long and broad, broadest at 

 base, truncate at tip; scuti narrow and elongate; scutellum subtriangular, with strongly- sinuate sides 

 and rounded apex; postlumbium very short; postscutellum long. Wings with radial vein meeting the 

 costal margin beyond the middle, a detached vein behind radius and one in front of medius, also a 

 narrowly detached branch behind medius. Tarsi three-jointed, the first joint of different form from the 

 next two ; claws absent. CEdeagus strongly bent, the under side being twice bent and the upper thrice ; 

 the last bend being a very strong reflexion at apical fourth; apex very acute. 



Female. — Head distinctly rounded on sides, with a distinct anterior median area marked out, 

 and slightly produced, tuberculate on either side of this area in front. The opening of the brood-canal 

 is behind the middle of the exposed part of the cephalothorax and the surface between this opening 

 and the apex is subconvex. 



Type of genus — P. australensis, Perkins. 



Geographical distribution of species. — Only one species is typical, the others probably 

 representing distinct genera, but placed here until they are better known. 



Parasites of leafhoppers of the genus Tetigonia : 



1. P. australensis. Perkins. — PI. 3, Fig. 4; PI. 4, Figs. 3, 10, 14, 28. Queensland. 

 Halictophagus (Bruesia) australensis, Perkins, Rep. Exp. Stat. Hawaiian 



Sugar Planters' Ass. Bull. 1, Pt. 3, p. io3, pi. 1, ff. 3, 5; pi. 2, 



ff. 1, 7, g, 12; pi. 3, ff. 8, g; pi. 4. ff. 1, 2 (igo5). 

 Pentoxocera australensis, Pierce, Proc. Ent. Soc. Wash. Vol. g, p. 81 (igo8); 



Bull. U. S. Xat. .Mas. no 66. p. i58, pi. i3, ff. 8-12 (igog'l. 



