592 Coleoi^terolofjical Notices, VI. 



Pubescence extremely dense, completely concealing the integuments; protho- 

 rax very broadly and oljsoletely constricted near the apex, the angles later- 

 ally obtuse, rounded and scarcely at all prominent 2. allucans 



In geographical range Vectura is i)robably limited to the great 

 arid and elevated internal basin region, between the Sierra Nevada 

 and Rocky mountains. 



1. V. loiigiceps n. sp. — Broad and strongly dilated behind, cuneiform, 

 moderately convex, feebly shining, pale ochreo-testaceous throughout, the 

 metasternum, maxillary palpi and antenna; toward tip blackish ; pubescence 

 closely appressed, dense, yellowish-white, the hairs broad and squamiform, 

 without trace of erect hairs; marginal fringe composed of short dense and pos- 

 teriorly inclined white hairs. Head small, elongate, three-fifths as wide as 

 the prothorax, flat, Avith indistinct sparse punctules, the impressions very 

 feeble; epistoma transverse but well developed, the labrum large, broadly 

 arcuate at tip ; eyes elongate-elliptical, feebly convex and not attaining the 

 base; antennae but feebly serrate, one-fourth longer than the prothorax, the 

 fifth and seventh joints much larger than the sixth or eighth, last three joints 

 larger, the penultimate slightly transverse. Frothorax one-fourth wider than 

 long, the sides feebly convergent from the base, feebly arcuate, slightly and 

 broadly sinuate near the base, deeply constricted behind the apical angles 

 which are laterally acute and very in'ominent; basal angles slightly acute, 

 everted and prominent; apex arcuate, narrower than the base, which is broadly 

 and arcuately lobed; lateral edges finely serrulate; disk finely, feebly and 

 rather closely but indistinctly punctate, the submarginal excavated line ex- 

 tending only to apical fourth. Elytra three-fifths longer than wide, oval, 

 gradually w ider to apical two-fifths, where they are more than twice as wide 

 as the prothorax; sides evenly and feebly arcuate; apex acutely ogival, the 

 sutural angles minutely acute and posteriorly prominent; lateral edges nar- 

 rowly reflexed; humeri exposed and transversely rounded; disk finely )mt 

 strongly, distinctly and closely punctured, the interspaces shining. Under 

 surface densely clothed with appressed white pubescence, the legs very slender 

 and moderately long. Length 3.6 mm. ; width 1.55 mm. 



Arizona (Yuma). Mr. Dunn. 



The typical specimen described above is a female, having the 

 fifth ventral rounded behind, with the disk feebly impressed in 

 the middle at the apex. I have before me two females not mutu- 

 ally differing at all in structure. 



2. V. albicans n. sp. — Stout, moderately dilated posteriorly, strongly con- 

 vex, the surface completely concealed by a dense even coat of rather long and 

 closely appressed, stout and snl)S(iuamiform white hairs, without trace of in- 

 termixed seta? except the usual few erect black hairs near the abdominal apex; 

 marginal fringe composed of short, dense and decumbent white hairs; body 

 black, the elytra and legs pale testaceous throvighout; antennic tastiiceous, 

 bhickish toward tip. Hmd scarcely two-thirds as wide as the prothorax, a 



