144 Journal New York Entomological Society. [Voi. vii. 



Black discal spot large, extending to the apical margin or very nearly, the elytra! 



punctures distinct but not coarse and rather close-set ; pubescence coarse 26 



26 — Form more elongate-oval, the prothorax very conspicuously punctured toward the 



middle, the .sides not quite continuous with those of the elytra, only moderately 



convergent but more distinctly and evenly arcuate ; elytra fully as long as wide ; 



legs red. Length 2.2 mm.; width 1.5 mm. Indiana ; \_soce)- Lee ]. 



collaris Meh/i. 



F'orm short and very broadly oval, the prothorax rather sparsely punctate even toward 

 the middle, the sides almost continuous with those of the elytra, strongly conver- 

 gent but only feebly, evenly arcuate ; elytra not quite as long as wide ; legs red. 

 Length 1.9-2.2 mm.; vvidth 1.5-1.65 mm. Arizona (I'inal Mts. ) — Mr. 

 Wickham, (Grand Canon of the Colorado) — Dr. T. Mitchell Prudden, (near 

 the southern boundary) — Mr. Morrison horni Gor/i. 



Form short and broadly oval, the size smaller ; prothorax smaller and more transverse, 

 the sides not quite continuous with those of the elytra, only moderately conver- 

 gent, evenly and moderately arcuate ; punctures sparse throughout, very small, 

 feeble and inconspicuous in the middle and gradually almost wholly obsolete to- 

 ward the sides ; elytra distinctly shorter than wide ; legs red, the hind femora 

 infuscate toward base. Length 1.8 mm.; width 1. 4 mm. New Mexico 

 (Albuquerque) — Mr. Cockerell cnckerelli, sp. nov. 



27 — Rather narrowly oval and moderately convex, black, the prosternum, tip of ab- 

 domen, legs throughout, head and pronotum pale testaceous, the latter with the 

 sides almost continuous, strongly convergent, evenly and feebly arcuate, the disk 

 with a small parabolic basal spot occupying median third of the base and extend- 

 ing to the middle and varying but slightly in excess ; elytra with the extreme 

 apical edge paler. Length 1. 8-2.0 mm.; width I.I-I.3 mm. Utah (south- 

 western) — Mr. Weidt uteanus, sp. nov. 



Somewhat narrowly oval, Jarger than iit coins but almost similar throughout in colora- 

 tion and sculpture, the prothorax equally short and transverse but with the sides 

 less convergent, feebly, evenly arcuate and not quite continuous ;' elytra more 

 elongate, the metacoxal plate more broadly rounded ; legs darker rufous through- 

 out. I,ength 2.0 mm.; width 1. 3 nmi. Lidiana rhesuS, sp. nov. 



28 — Species of the Atlantic regions 29 



Species of the Sonoran and Pacific regions 32 



29 — Elytra with a rather broad and well-defined red apex extending to apical seventh 

 or eighth, its anterior margin transverse, tending to slight prolongation along the 

 lateral edges, black, the abdomen red, blackish toward base ; head red, blacki.sh 

 basally ; pronotum broadly and rather abruptly at the sides and legs throughout, 

 testaceous ; prothorax two and two-fifths times as wide as long, the sides very 

 discontinuous with those of the elytra, only feebly convergent, arcuate at apex, 

 becoming straight posteriorly, the disk finely but strongly punctate, the punctures 

 sparse and inconspicuous at the middle, becoming coarser and unusually close-set 

 toward the sides ; elytra lather strongly, somewhat coarsely but not densely 

 punctured. Length 2.6 mm.; width 1.8 mm. Indiana; \_chatchas yi\A's.'\. 



fastlgiatus Milk. 

 Elytra black, with the extreme apical margin or beaded edge alone paler 30 



