200 



PENTAGRAMMA, new genus. 



Form broad, eliptical. Head nearly as wide as the pronotum, promi- 

 nent and tumid before. Vertex broad, heptagonal, rounded at the apex 

 which surpasses the eyes. Face convex, front nearly as wide as long, the 

 two median carina widely divergent forming an oval compartment, approx- 

 imate, parallel and indistinct over the tumid apex of the head; sides of the 

 front broadly rounded, carinate. Cheeks mostly deflexed but with an ob- 

 lique carina below the antenme, forming there a sloping area. Clypeus 

 large, convex, triangular, sides feebly carinate. Antenna? stout, subterete, 

 first joint about one fourth the length of the second, oblique at apex. Pro- 

 notum shorter than the vertex, moderately concave behind, tricarinate, the 

 lateral carina' curved outward under the eyes. Scutellum normal, with five 

 carina. Anterior and intermediate feet flattened, not foliaceous, posterior 

 tibia* a little longer than their tarsi, thickened at tip and armed with three 

 spines on their outer edge. 



This genus may be distinguished from any other yet characterized by 

 the five scutellar and two frontal carinae and the short basal joint of the an- 

 tenna 1 . The type and only species now known is Liburnia vittatifrons 

 L'hler, and of this I have seen only females. A study of the males may 

 necessitate some change in the characters given above but they cannot 

 unite it with any genus now established. 



PENTAGRAMMA VITTATIFRONS, (Uhler.) 



Liburnia vittatifrons, Uhler, Bui. U. S. Geol. & Geog. Surv., II, p. 

 351, 1876- IV, p. 510, 1S78. 



Standard Nat. Hist., II, p. 241, 1S84. 



This is our most conspicuous described North American representative 



of this group. It is a large green species approaching one third of an inch 



n length. The front is brown with a transverse green band, and against 



the antenna- is a black spot aad a larger one covers the inner disc of the 



anterior coxae. The antennae and legs are also lineated with brown. 



Mr. Uhler records it from N. Y., N. J., Illinois, Dakota and Montana. 

 On the Atlantic Coast it is an inhabitant of the salt-marshes. 



Prof. Herbert Osborn (Proc. Iowa Acad. Sci., i, pt. 2, p. 127.) mentions 

 a closely allied insect from Iowa but does not describe it as a distinct species. 



GENUS STIROMA, Fieb. 

 Fieber, Verh. der Zool. Bot. Ges. Wien, XVI, p. 521, 1866. 



Cicad. d'Europe, I, p. 8, 1S75; II, pi. 8, 1S76. 

 Edwards, Trans. Ent. Soc. London, 1SS6, p. 93. 



STIROMA INCONSPICUA, Uhler. 



Stiroma inconspicua, Uhler, Bui. U.S. Geol. & Geog. Surv., Ill, p. 



45«. 'S77- 



Gillette & Baker, Hemip. of Colo., p. 70, 1895. 



