1897] MARYLAND ACADEMY OF SCIENCES. 39I 



the costal area interiorily callous, pale and widening pos- 

 teriorly ; membrane tinged with brown, a little longer than 

 the venter, the veins very distinct, one pair near the inner 

 border forked. Connexivum exposed, pale, the sutures 

 marked by obscure lines, each ending in a black dot; 

 venter unevenly sprinkled with either fuscous or red, 

 closely, unevenly punctate, the middle line polished, 

 remotely punctate. Pleural pieces coarsely and in part 

 confluently punctate; embolium remotely punctate. Legs 

 finely and unevenly punctate, pale yellow, with the tarsi 

 piceo-rufous, and the nails piceous. Genital segment of 

 the male blunt, emarginated each side, bounded exteriorly 

 by a raised, callous rim, swollen on the middle and 

 grooved there. Length 6 to 7 mm. Width across 

 humeral angles 4 to 4^ mm. 



This interesting species comes nearest to D. hiimeralis 

 Uhler, but it differs in form of head, markings of prono- 

 tum, form of humeri and lateral margins, etc. It was 

 collected in Arizona by Mr. Morrison, and more lately by 

 Mr. Hubbard near Tucson, Ariz. 



Corixa serrulata. New sp. 

 Dark brown or fuscous, form of medium width, lines of 

 the upper side yellow. Head moderately short, ivory 

 white, vertex very slightly convex, subacute at the middle 

 of the reflexed occiput, at the very tip of which is a brown 

 granule, inner corner near the eye marked with two im- 

 pressed, unevenly punctate, short lines, occipital line very 

 slightly curved ; front bluntly curved, convexly raised on 

 the middle, and this is followed below by a concave fovea, 

 which is nearly circular and fills the entire width between 

 the eyes; clypeus transversely brown, the flat rostral seg- 

 ments paler brown, margined exteriorly with white. Pro- 

 notum moderately convex, having a brown carina on the 

 middle line; the surface unevenly punctate, feebly ras- 

 trated at intervals, and spread with minute, yellow 



