THE CANADIAN ENTOMOLOGIST. 345 



penultimate, posterior margin slightly waved ; male valve angulate, 

 plates concavely, acutely pointed. 



Described from sixteen examples from Tucson, Ariz. (Ur. Kunze.) 



Deltocephalus e/iinaiiis, n. sp. — Form oi sonojus, but still longer and 

 narrower. Golden green, with black spots on the vertex. Length 4 mm. 



Vertex short but decidedly angulate, one-i'oorth wider than long, two- 

 thirds the length of the pronotum, disc sloping, rounding to the front; 

 front rather narrow above, almost straight margined to the broad clypeus. 

 Elytra very long and narrow, Dicraneura-like; venation similar to sonorus, 

 but weak, and lacking the second cross nervure. 



Colour : vertex pale yellow, a fuscous spot at apex, a pair of round 

 black spots on the margin nearer the eyes than the apex, and a pair of 

 orange marks on the disc. Pronotum golden or greenish, with five luteous 

 lines. Elytra subhyaline greenish, with a golden reflection. Face yellow, 

 a spot below each ocellus and the antennal pits black. 



Genitalia : ultimate ventral segment of female rather narrow at the 

 base, then produced into a remarkably long, blunt-tipped, spatulate 

 process, which is curved up along the margin and at tip ; male valve 

 rather long, rounding; plates wide at base, enormously elongated, narrow- 

 ing to a blunt tip, five times the length of the valve. 



Described from three specimens from Sante Fe, Mex. (Barrett.) 



The remarkable genitalia of both sexes will readily distinguish this 

 species. 



DeltocepJialus gnarus, n. sp. — Form and general appearance of 

 niiniitiis, V. D., nearly, with a longer vertex and front. Black, with a few 

 markings, and the elytra milky white in female. Male darker. Length, 

 $ 2.5 mm., c? 2.25 mm. ; width 8 mm. 



Vertex slightly obtusely angled, the margins straight, one-fourth wider 

 at base than long, one-third longer on middle than against eye, as long as 

 pronotum ; front rather narrow, one third longer than wide, the margins 

 gently curved. Pronotum strongly transversely wrinkled ; elytra a little 

 longer than body ; venation weak ; two cross nervures present ; the outer 

 anteapical cell very small, acuminate anteriorly. 



Colour: vertex shining black, circles around the ocelli, a slender line 

 connecting them with the apex, a cross back of the apex, the margin 

 against the eye, and a pair of oblique dashes on posterior disc, approxi- 



