1918] \ ^ 49 





sides, not miicli narrower at the apex thau at the base, the ahi^wtSir^^^gl^s ,j ^"^ 

 prominent; finely, shallowly canaliculate down the middle, and with^aT^Otl- ' 

 spicuous submarjjinal ridge running parallel with the raised margin, the disc 

 with a few extremely minute scattered punctures. Elytra oval, rather short, 

 somewhat acuminate at the tip, convex on the disc anteriorly; shallowly 

 seriato-punctate towards the sides and apex, almost smooth on the convex 

 portion of the disc, and with two submarginal carinae, the lower one in line 

 with the raised margin of the prothorax. Pro- and metasternum and abdomen, 

 with a broad, shining, smoother space down the middle, the anterior portion 

 of the metasternum depressed between the intermediate coxae, and the depres- 

 sion limited on each side by an oblique ridge ; ventral segment 5 not longer 

 tibiae than 2-4 united. Legs rather slender, the intermediate and posterior 

 tibiae sinuous within. 



Length Ij-l^ mm. 



Hah. Chile, East coast of Island of Chiloe (C. Darwin: Dec. 

 1834). 



Four specimens, labelled by Darwin as having been found under 

 stones in a small stream, and numbered 2338 in his register. A minute, 

 convex, very shining, black form, with reddish legs and antennae, related 

 to JE*. sulcicollis Sharp, from the mountains of Chiiiqui, and E. laevi- 

 gatus G-rouv., from Brazil, differing from both of them in having the 

 prothorax less narrowed anteriorly and more finely canaliculate on 

 the disc ; E. sulcicollis, moreover, has a raised phca at the base of the 

 elytra, which is wanting in the present insect. E. cJiiloensis could, 

 perhaps, be included under the section or subgenus Esolus Muls, It 

 cannot be identified with any of the five species of Elmis, described 

 by Germain from Chile, three of which are from QuiUota. 



Halticidae. 

 DocEMiNA, n. gen. 



Antennae narrowly separated at the base, 11-jointed ; terminal joint of 

 maxillary palpi acuminate ; prothorax margined laterally, without longitudinal 

 impressions or transverse groove on the disc at the base ; acutellum small, 

 transverse ; elytra striato-punctate ; anterior coxae narrowly separated, the 

 cavities closed behind ; metasternum very short ; ventral segments 1 and o 

 subequal in length ; legs stout ; femora thickened, the posterior pair much 

 stouter than the others ; tibiae comparatively short, the posterior pair not 

 reaching the apex of the elytra and without definite spur at the tip ; tarsi with 

 joints 1-3 spongy-pubescent beneath, 1 as long as 2 and 3 united, 2 transverse, 

 3 bilobed, 1 strongly dilated in (S , the claws small, angularly dilated at the 

 base J body oblong, apterous, metallic. 



Type, D. crassipes. 



The single species referred to this genus is not unlike Docema C. O. 



