318 G. H. HORN, M. D. 



sion deep in front of triangular process. Elytra slightly broader than the tho- 

 rax, elongate, gradually narrowed to apex; surface striate, stria3 punctured, in- 

 tervals flat, rugosely punctured. Body baneath darker than above, more shin- 

 ing; sparsely jninctured. Legs brownish testaceous. Length .50 inch; 1^ 

 mm. 



The coxal plates being very narrow externally and the second 

 and third antennal joints together scarcely longer than the fourth, 

 this species should be associated with oblong icollis, from which it 

 differs by its greater size, more elongate form and thoracic sculp- 

 ture. The lateral margin is much less deflexed than is usual in 

 Agriotes, and the front flatter The prosternal sutures are very 

 feebly channelled in front. 



Two specimens from California. 



OXYGONUS, Lee. 

 0. ater, n. sp. — Black, feebly shining, very sparsely clothed with greyish 

 hairs. Form elongate. Head coarsely, deeply and moderately densely punc- 

 tured. Antennae not as long as head and thorax, subserrate, joint 2 shorter 

 tlian the third, the latter scarcely longer than fourth ; joints 4 — 10 short, as 

 broad as long, subserrate, joint 11 longer than the preceding. Thorax longer 

 than wide, slightly broader behind, sides very feebly arcuate, angles acute ■v&tj 

 slightly divergent and with a moderately long carina; surface coarsely but 

 sparsely punctured, more shining than the elytra, moderately convex. Elytra 

 as broad at base as thorax, parallel, narrowed and conjointly rounded at apex ; 

 surface deeply striate, striae punctured, intervals moderately convex biseriately 

 punctured and coarsely transversely wrinkled. Body beneath black, feebly 

 shining, deeply punctured and sparsely clothed with grey hairs. Legs black. 

 Length .28 inch ; 6 mm. 



This species resembles at first glance a Limonius, notably qiici-cinua. 

 Oxygonus has all the characters of Corijmhites and differs only in the 

 form of the ungues as shown on PI. IV, fig. 24 sub. 



For the unique in my cabinet I am indebted to Mr. Jas. Behrens^ 

 of California, by whom it was collected in Amador Valley, in that 

 state. 



COKYMBITES, Esch. 



Our species of Corymhites, are rapidly increasing in number and 

 seem to require revision and correction. New synoptic tables of this 

 and other genera have been prepared, but their publication has been 

 deferred for a future time, when the tables with synonymy and bibli- 

 ography will be presented, at such a time when all our accessible new 

 species shall have been described. 



The following new species are members of three of our groups which 

 arc distinguished as follows. 



