THE CANADIAN ENTOMOLOGIST. 119 



necessary to extend the limits of Arctocorisa to include Basileoco?'ixa^ 

 Kirk. The type of Corixa, Geoffroy, is striata, Geoffr., ( = Geoffroyi, 

 Leach) ; the genus has not yet been found in America, whereas Arctocorisa 

 has already been numerously reported. 



1. A. hydatotrephes^ n. sp. — Differs from any of the species of 

 Arctocorisa known to me, by the complete anastomosis of the dark lines 

 on the clavus, corium and membrane, the margins of these areas being 

 more or less broadly pale. 



Head and legs yellowish-testaceous, head dorsally more or less soiled. 

 Pronotum testaceous, with five grayish-brown lines. Tegmina blackish- 

 brown, embolium and all the margins pale, the lateral margin being broken 

 by the dark colour only at the extralateral margin of membrane. Sterna 

 very pale castaneous. Meso- and metanotum and abdomen blackish, or 

 at least dark fuscous, margins of the latter pale. Fringe of hind tibiae 

 fuscous. Head between eyes very narrow, less than a third of the width 

 of the pronotum. Pronotum transverse, short, feebly rostrate, a tubercle 

 at the apical margin in the middle. Middle tibiae one-third longer than 

 the tarsi, and one-seventh longer than the subequal claws. Tegmina 

 obsolescently rostrate. 



(5 . — Face flat medianly, scarcely excavated. Strigil suboval, trans- 

 versely placed, with five rows. Pala subcultrate, dorsally arched, with i8 

 or more pegs, which lengthen as they approach the apex, and keep parallel 

 and close to the dorsal margin soon after they leave the base. 



% . — Pala elongate cultrate. 



Length, 6 mill. Hab.: Raleigh, North Carolina (Brimley). 



2. A. macroceps, n. sp. — Yellowish-testaceous. Eyes grayish-brown. 

 Pronotum brown, with three comparatively broad brown-testaceous lines, 

 second and third partly confused. Tegmina brown ; clavus with basal 

 lines broad and subentire, the others much broken up ; corial lines much 

 abbreviated and contortuplicated, obscurely triseriate. Fringe on hind 

 tibise fuscous. Head large, rounded in front, one-third longer than wide 

 between the eyes. Pronotum 2)2 times as wide as the head between the 

 eyes, and more than 4 times as wide as its own middle length. Pronotum 

 and clavus rostrate, corium more feebly. Middie tibiae nearly one-half 

 longer than the tarsi, which are subequal to the subequal claws. 



$ . — Pala cultrate, arched near the base. 



Length, 2,^5 niill. Hab.: Raleigh, N. C. (Brimley). 



