110 THE CANADIAN ENTOMOLOGIST. 



brown or fuscous, nervures distinct, pale, the commissural and those 

 delineating the apical areoles heavy and brown. Wings whitish, highly 

 iridescent. 



Genital characters. Male : Valve small, black, edged with pale. 

 Plates broad, but litde longer than the valve, cut squarely off on their 

 apex, with a few pale submarginal spines ; yellowish, clouded with black 

 beyond the valve. Pygofers nearly twice the length of the plates, blackish, 

 fulvous at apex, with a broad pale yellow median band, their inner apical 

 angles rounded off so as to expose the pale anal tube. Female : Last 

 ventral segment short, hind edge feebly concave ; pygofers broad, their 

 pale acute tips much exceeded by the obscurely rufous oviduct. 



Length, 3-3^^ mm. 



Mississippi. Described from one male and three female examples 

 received from Mr. Howard E. Weed. 

 Deltocephalus flavocosiatus, n sp. 



Small ; fuscous-brown ; antennae, legs, costal margin of the elytra, 

 and a few small spots on the vertex yellow. Elytral nervures pale. 

 Length, 3 mm. 



Male : Head shorter, more conical, with the anterior edge more 

 rounded and the vertex more convex than in the most of our species. 

 Vertex marked with about ten yellow points, the apical four form a 

 rhomboidal figure, two are on the ocelli, another pair are placed against 

 the inner margin of the eyes, and on the middle of the basal margin are 

 two elongated marks, in one example nearly obsolete. Face black, 

 closely punctured ; clypeus quadrangular, sutures straight ; loras well 

 rounded outwardly, cheeks wide, forming a broad margin beyond the 

 lorae and attaining the apex of the clypeus. Outer angles of the cheeks, 

 a dot below each ocellus and sometimes a few short arcs on the front 

 inferiorly, yellow. Pronotum nearly smooth ; anterior submargin thick- 

 ened and black, with about five yellow points indicating as many very 

 obscure longitudinal lines ; hind edge moderately concave. Scutellum 

 black with traces of four longitudinal pale lines. Beneath deep black, 

 the narrow edge of the ventral segments paler, propleura margined wiih 

 yellow behind. Legs soiled yellow ; claws and basal jomt of the hind 

 tarsi black. Tergum black, narrowly margined with pale. Elytra fuscous- 

 brown ; nervures pale bordered with blackish ; costa bright yellow as far 

 as the antiapical areoles with a blackish border within, which extends 

 over the apical areoles and includes two crescentic white marks beyond 

 the yellow costal vitta ; extreme apex white. 



