562 Coleopterological Notices, VII. 



S. arizonica n. sp. — Slender and linear, though quite convex, shining, 

 the elytra subalutaceous, very pale flavo-testaceous in color throughout, the 

 head and prothorax minutely, sparsely and asperately subpuuctate, the elytra 

 scarcely visibly, sparsely and very minutely punctulate ; pubescence short, 

 decumbent and moderately dense. Head as wide as the prothorax, rather 

 •wider than long, the eyes well developed, at rather less tlian their own 

 length from the base, the tempora less prominent and circularly rounded be- 

 hind them to the neck ; base broadly sinuato -truncate, not obviously im- 

 pressed at the middle ; fovese rather small but deep, just behind the middle 

 and separated by % of the entire width, united transversely by a very 

 broadly subtriangular groove extending anteriorly only half way to "the inter- 

 antennal line, the frontal margin throughout broadly tumid, the antennal tu- 

 bercles not well defined ; antennse very short, scarcely J^ longer than the head, 

 the eleventh joint large, conoidal, as long as the five or six preceding joints 

 combined and twice as wide as the ninth, the base oblique, tenth triangular;, 

 erect capitate setae of the under surface rather short and few in number. 

 Prothorax but slightly wider than long, widest and not very prominently 

 rounded at about the middle, the sides broadly arcuate and convergent ante- 

 riorly, convergent and sinuate toward base ; transverse sulcus strongly flexed 

 posteriorly at the middle orbiarcuate ; disk convex and even. Elytra not quite 

 as long as wide, scarcely % longer and about % wider than the prothorax, the 

 humeri quite well exposed at base ; sides feebly divergent and broadly arcuate 

 throughout from base to apex ; disk moderately convex ; sutural stria very 

 coarse and deep ; basal pit slightly elongate. Ahdomcn longer than the elytra 

 and but little narrower, the sides feebly arcuate ; surface broadly convex, the 

 first visible dorsal with two short basal cariuse separated by rather less than %" 

 of the total width and 'limiting a decided basal depression, distinctly longer 

 than the second ; two to four diminishing gradually in length. Legs short, the 

 femora only moderately stout. Length 0.95 mm. ; width 0.28 mm. 



Arizona (Williams). Mr. Wickham. 



The abdomen in the single female type is strongly extended 

 and perfectly straight in profile, not deflexed toward tip. 



Zolium n. gen. — The bod}^ in this genus is very nearly as m 

 Melba, being similarly short and convex, rather ventricose and' 

 with the pronotal sulcus continuous down the flanks without 

 trace of fovese, but here there is a small but well developed post- 

 humeral fovea and pleural cariniform line as in Actium. The typfr 

 is Trimiopsis eggersi Reit., from the island of St, Thomas. In 

 this species the pleui'al cariniform line is paralleled above by a. 

 series of small punctures, each of which bears a short squamiform 

 hair, and the fovese of the head are discal, remote from the eyea 

 and wholly isolated ; the head is about equal in width to the pro- 

 thorax. The sixth antennal joint of the male is slightly dilated^ 



