72 Journal New York Entomological Society. [Voi. \ni. 



ceding species, the elytra indistinctly paler at or near the base subexternally ; 

 pubescence distinct and rather dense, the punctures minute. Length 1.3 ram.; 

 width 0.8 mm. California amabilis Lee. 



The pale band very conspicuous, not at all interrupted at the suture ; pubescence 

 coarser and not so dense 8 



8 — Piceous-black, the pronotum pale, clouded with blackish at the middle anteriorly; 

 elytra each with a pale spot at the humeral callus, the punctures distinct, together 

 much longer than wide. Length I.4-1.7 mm.; width 0.85-I.0 mm. District 

 of Columbia f asci ata Say 



Black, the pronotum as \x\ fasciata, the elytra but little longer than wide, the trans- 

 verse pale band still wider and more conspicuous, wholly devoid of a subbasal 

 pale spot, the punctures more minute and rather sparser ; body shorter and stouter. 

 Length 1.5 mm.; width i.o mm. Texas (Columbus) decora, sp. nov. 



T\\^ Saciiim baltcatiim, of Matthews, described from North Carohna, 

 I have not seen ; it has on the elytra a straight transverse fascia behind 

 the middle not extending to the sides, and also the apices, yellow. 

 Lepida was placed in Arflirolips by Mr. Matthews but incorrectly. 



Arthrolips Ei-icJis. 

 This genus resembles the last in the outward habitus of the species, 

 but these are in general much more minute and more narrowly oval or 

 oblong-oval and perhaps a little more conve.\. In the structure of the 

 anterior parts of the prosternum and of the antennre it is radically dif- 

 ferent. The species are nearly as numerous as those of Molainba, and 

 are equally widely disseminated over the more southern parts of the 

 Lhiited States ; as far as known to me they may be distinguished by 

 the following characters : — 



Elytra dark in color, with paler maculation behind the middle 2 



E 1 y t r a u n i c ol o r o u s 6 



2 — Elytra each with an isolated spot which does not attain the suture ; larger 



species 3 



Elytra with a broad band crossing the suture; size very minute 5 



3 — The spot behind the middle large, oblique and more or less rounded ; body piceous, 

 the pronotum paler, becoming broadly diaphanous at apex as usual, the median 

 line remaining dusky ; elytra finely, very closely punctate, distinctly pubescent, 

 without basal or subbasal pale marking; legs pale. Length i. 2-1.35 ™'n-; 



width 0.78-0.82 mm. Southern California Tlimius, .sp. nov. 



Var. A— Similar but stouter and more rounded at the sides, the spot less 

 rounded and obliquely elliptical ; elytra more rapidly rotundato-convergent 

 behind and narrower at tip. Length 1. 4 mm.; width 0.9 mm. California 



(Owens Valley) robustulus, v. nov. 



The spot transverse and crescentiform, being broadly sinuate anteriorly 4 



4 — Elytra black, minutely and not so closely punctate, the limb not paler and without 

 a humeral pale area ; pronotum not paler, except at the apical limb and very 



