Uhler.] 444 [April 17 



Mr. Say calls this iV. noveboracensis Forster, but it does not agree 

 with that author's description, nor with that of Gmelin, who quotes 

 the characters originally given. Still less is it the European N. ma- 

 culata Oliv. Two other specimens without numbers are in the col- 

 lection. 



corisid^:. 



Corisa Am. et Serv. 



1. C. calva. 



Corixa calva Say, Hemipt. New Harm., 38, 1. Corisa calva Fieb., 

 Spec. Gen. Corisa, 19, 12. 



No. 134, Harris' Collection. " Maine. May 1, 1836." "Probably 

 only a variety of No. 105." Harris. 



It is by no means a variety of No. 105, as the structure of the 

 pala? will show at a glance. 



2. C. Harrisii. 



Blackish fuscous, not quite so broad as C. interrupta Say; the upper 

 surface of the pronotum and of the hemelytra, except at tips, dis- 

 tinctly, uniformly rastrated. Head pale yellowish, a little broader 

 than the pronotum; face with a few rows of large punctures each 

 side, frontal fovea not very deep, oblong-oval, extending a little way 

 above the lower line of the eyes, sparingly clothed with very long 

 golden bristles; posterior margin carinately elevated, embrowned, the 

 middle a little produced, dark brown; the eyes brown, or lead-color. 

 Pronotum very nearly twice as broad as long, fuscous, with eleven 

 slender, yellow, slightly curved bands, which do not touch the lateral 

 margin; one or two on the disk and one at posterior tip uniting at 

 either end with the one preceding or succeeding. Posterior margin 

 yellow, bluntly triangular, with the apex a little rounded; pleura 

 and parapleura pale yellow. Legs yellow, tibiae a little broader than 

 the pala?, the upper margin bowed; pala? broad, elongate- subqu ad- 

 rate, a little obliquely narrowing to the base, the apex obliquely sub- 

 truncated, a little decurved, the upper angle rounded, feebly promi- 

 nent, the lower angle almost blunt, the indented tip carrying an 

 oblique row of coarse punctures, the middle line of inner face de- 

 pressed, the raised edge bounding its lower side minutely, closely 

 denticulated, the comb of cilia? arising from this ridge long, golden- 

 yellowish; the upper submargin and margin with rows of Very minute 

 teeth, and near the tip a few long cilia?; the outer face broadly sul- 

 cated. Intermediate and posterior tibia? with brown spines; the 

 edges of the posterior tibia? and tarsal paddles and a streak on the 



