330 Coleopterological Notices, V. 



lete except near the base. Prothorax rectangular, the hypomera 

 feebly inflexed, wide and greatly visible from the side. Elytra 

 rather short and transverse. Abdomen wide, the segments short 

 and equal, the first two finely impressed at base. Metasternal epi- 

 mera large, extending distinctly behind the elytra. Legs short, the 

 tarsi 4-5-5-jointed, the posterior very long, almost as long as the 

 tibiae, with the basal joint not as long as the next two, although 

 elongate, the second fully as long as the last. 



The acute mesosternal process, extending one-half the length of 

 the coxae with its apex free, the smaller eyes, more distant from 

 the prothorax, narrower neck and many other structural characters 

 necessitate a separation of this genus from Myrmedonia, although 

 it is apparently somewhat allied ; it is more closely allied, however, 

 to Atheta, Thoms. QuadricoUis is the type of the genus. 



A. qiiadricollis n. sp. — Parallel, polished throughout, pale rufo-testa- 

 ceous, the head piceous ; abdomen blackish except indefinitely toward base 

 and at apex ; legs pale throughout ; antennae black, testaceous toward base ; 

 head and pronotum very finely sparsely and indistinctly punctate ; elytra 

 more distinctly and closely, subasperately so ; abdomen throughout finely, 

 subasperately and moderately closely punctate ; pubescence short stiff and 

 sparse, longer on the abdomen, where it is still denser beneath. Head rather 

 narrow, two-thirds as wide as the prothorax, the occiput declivous at base 

 but not prominent ; antennae attaining the apices of the elytra. Prothorax 

 transversely rectangular, two-fifths wider than long ; sides parallel, broadly 

 arcuate anteriorly, broadly sinuate behind the middle ; basal angles obtuse 

 and rounded ; base distinctly wider than the apex, broadly arcuate, the apex 

 truncate, the angles rather broadly rounded ; disk broadly, feebly convex, 

 slightly impressed in the middle before the base. Elytra two-thirds wider 

 than long, slightly shorter than the prothorax, and, at apex, just visibly 

 wider than that part ; sides feebly convergent to the base, the humeri not 

 exposed at base, obliquely, feebly rounded ; disk impressed on the suture 

 behind the scutellum. Abdomen — contracted — not quite as long as the anterior 

 parts, at base fully as wide as the elytra and behind the middle somewhat 

 wider; sides parallel, very slightly arcuate; border moderately thick, not 

 very deep. Length 3.0 mm. ; width of abdomen 0.9 mm., of the elytra 0.8 mm. 



Vancouver Island. 



The deep emargination at the base of the first tergite, with its 

 connecting membrane largely exposed when in a horizontal posi- 

 tion, shows that the abdomen is strongl}^ reflexile. I can observe 

 no sexual marks about the single type specimen, which is probably 

 a female. 



The two following species are provisionally attached to Anepsiota 



