. Annals. Entomology. Fig. 3. Phlepsius coUitus Ball. a, dorsal view; b, profile; c, 9 ; d, c^. Phlepsius vanduzei Ball. (PI. XXVII, Fig. 1). A large species of the form of cinereus, gray cinereus with a trilobate commisural line; vertex bluntly conical, one-fourth longer at middle than at eye, rounded to front; front short; clypeus long, wedge-shaped, broadest at apex; elytra broad, flaring at apex. 9 segment interrupted, appearing as a narrow strip either side, within which is a thin mem- brane shaped much as apertus. cf, valve triangular; apex obtusely angular; plates broad at base, roundin
. Annals. Entomology. Fig. 3. Phlepsius coUitus Ball. a, dorsal view; b, profile; c, 9 ; d, c^. Phlepsius vanduzei Ball. (PI. XXVII, Fig. 1). A large species of the form of cinereus, gray cinereus with a trilobate commisural line; vertex bluntly conical, one-fourth longer at middle than at eye, rounded to front; front short; clypeus long, wedge-shaped, broadest at apex; elytra broad, flaring at apex. 9 segment interrupted, appearing as a narrow strip either side, within which is a thin mem- brane shaped much as apertus. cf, valve triangular; apex obtusely angular; plates broad at base, roundingly triangular; apices depressed and slightly divergent. Dull whitish, sometimes washed with yellow on vertex and pronotimi; vertex with a round black spot either side at base. Pronotum and scutellum faintly marked; elytral veins yellow and fuscous; areoles finely, sparsely marked with ramose lines. Length, 8 mm.; width, mm. Described from Rifle, Colo. Type in Ball Collection. Phlepsius nigrifrons Ball. (PI. XXVII, Fig. 2). Head wider than pronotum; vertex short, slightly longer at middle than next the eye; front full, broad at base; elytra broad, compressed behind, resembling vanduzei, but with apical cells short. 9 segment wanting or appearing as a pair of widely separated rectangular plates, a pair of roundingly pointed plates overlap these on their inner margins, leaving the median fourth exposed. Male valve rounding, with the apex bluntly produced; plates together nearly semicircular, with the apices bent up and slightly produced. Vertex pale yellow in female, a pair of brown spots at base and a small pair just back of apex, black. The black of front is visible from above, either side of apex. In the male an arch of irregular dots connect the basal spots. Two or three dots inside ocelli and the frontal markings extend up to the apical spot; front black at base with faint light arcs. Pronotum, scutellum and elytra pale with fuscous irrorations and lines; an interrupted
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