LeConte.] 



HYLURGIXI. 389 



2. H. long-us, n. sp. 



Slender, cylindrical, black, nearly glabrous. Head densely punetured. 

 beak finely carinate, front with a transverse impression. Prothorax longer 

 than wide, base and hind angles rounded, sides slightly rounded, converg- 

 ing gradually to the tip, which is broadly rounded; punctures deep and 

 strong, larger at the base than at the tip and sides, where they are also 

 more dense; no smooth dorsal line is visible. Elytra less shining than the 

 prothorax, with stria3 composed of moderate sized punctures; inter-; 

 nearly flat, wider than the striae, densely, finely punctured. Club of an- 

 tennae brown, first joint composing about one-half of the mass. Length 1 r. 

 mm. ; .175 inch. 



Colorado, Prof. F. H.Snow; one specimen. This species resembles closely 

 II. macer, but can be easily recognized by the different form of the pro- 

 thorax. 



The following synonyms will complete the bibliography I have already 

 given in my synopsis. 



4. H. porculus Er. Wiegm. Archiv. 1836 y i, 49 ; If. carbonariiM Fitch, 

 Noxious Ins. New York, 4th report, No. 249 ; H. granosics Chapuis, Mem. 

 Soc. Roy. Sc. Liege, 1869, 73 ; H. scabrlpennis Zimm., Tr. Am. Ent. Soc. 

 1868, 149; ? N. salebrosm Erchhoff, Berl. Ent. Zeitschr. 1868, 146. 



5. H. cavernosus Zimm., 1. c. 149 ; ? H. wobinosm Eichhoff, Berl. 

 Ent. Zeitschr. 1868, 146 ; Chapuis, 1. c. 73. 



Eichhoff gives Carolina as the locality ; Chapuis mentions Norfolk 

 Sound, which, being on the Pacific coast, makes the reference doubtful. 

 Perhaps the specimen came from Norfolk, Virginia, instead of Norfolk 

 Sound. Should they prove to be the same, the name proposed by Eichhoff 

 has priority by a few weeks. 



9. H. exilis Chapuis, 1. c. 20, 



Florida, one specimen, Messrs, Hubbard and Schwarz. Nearly related 

 to H. tennis, but the prothorax is more coarsely punctured, and the inter- 

 spaces of the elytra are not granulate, but rugosely punctured, and less 

 opaque. Length 2.5 mm.; .10 inch. 



^JHYLURGOPS n. g. 



I have separated as a distinct genus the species referred to Erichson's 

 second division, having the third tarsal joint broader and bilobed, and the 

 mesosternum protuberant. They are quite different in form from true 

 Hylastes, and resemble Dwdroctonu*, the prothorax trying m >re narrowed 

 forwards, and more finely and densely punctured. The basal margin of 

 the elytra is so acutely defined in //. granulatw and pinifex that I should 

 place them near Hylurgus, but for the scutellum, which is not depressed; 

 and for the deeper antennal grooves, which remove them from the group 

 of Hylurr/i. The front tibiae are less coarsely serrate than in Hylastes. 



The species may be thus distinguished : 



Prosternal ridges acute ; front transversely impressed. 2. 



