382 BULLETIN UNITED STATES GEOLOGICAL SURVEY. 



obliquely narrowing anteriorly; anterior margin moderately emargin. 

 ated, destitute of a collum, indented each aide of the head ; lateral 

 margins densely fringed; posterior margin subtruncate, feebly sinuated 

 next the humeral angles. Scutellum a little longer than wide, narrow 

 at tip. Ostiolar canal very short, consisting of only a narrow ridge 

 running out not more than one-fonrth the length of the episternum ; the 

 anterior margin of the meta-episternura composed of a flat piece, ligulate, 

 running outward to the tip, and widening there; the ostiole is oval, and 

 situated at the point of contact of that piece and the canal. Costal 

 margin of the corium closely pitted, and fringed with bristles. Anterior 

 tibise wide, very distinctly ridged and sulcated, and many-spined. 



0. comjjactiis, new sp. 



Subquadrate-oval, blackish-piceous, with the margins of the corium 

 more or less tinged with rufous. Head deep black, flat, highly polished, 

 impunctate, but with indications of minute rugosities in places; wrinkles 

 of the lateral lobes obsolete and abbreviated; t'ossfe very distinct ; sides 

 of thetylus almost straight, the apex very slightly narrowed, blunt ; 

 base of the head convexly elevated. Antennte short and stout, pale, 

 or moderately dark piceous; second joint shortest and narrowest. Ros- 

 trum ferrugino-piceous, stout, reaching to the intermediate coxtB. Pro- 

 notum wider than long, a little narrowing anteriorly, the lateral margins 

 reflexed, densely clothed with long, ferruginous pubescence ; the surface 

 highly polished, irregularly punctate on the sides, and obsoletely on and 

 behind the transverse line ; posterior half with a few transverse 

 scratched lines ; fossse near the anterior angles small but distinct ; 

 humeral angles a little convexly prominent, the sinus next them almost 

 obsolete. Scutellum very feebly convex, the surface a little uneven, 

 deeply, but hardly coarsely, punctate ; the submarginal suture deep, 

 closely and very minutely linearly punctate ; the tip rugulose and much 

 depressed. Corium minutely punctate, but coarsely on the sutures, the 

 surface highly polished, rufous on the costal area and inner margin of 

 the clavus ; the costal margin very thick, having coarse punctures to 

 beyond the middle, which are close set and carry ferruginous bristles ; 

 membrane faintly tinged with brown, and with a few jnceous thick 

 places on the nervures. Legs rufo-piceous; the spines black ; the tarsi 

 ferruginous ; the posterior coxge are very much prolonged exteriorly, 

 and flattened, and acutely ovate at the outer end. Venter i)olished, 

 minutely rugulose exteriorly and on the connexivum, and a little wrin- 

 kled on the last two segments. 



Length 5 millimeters. Width of base of pronotum scant 4 millimeters. 



Brought by Captain Julich from Galveston Island, Texas. It is a 

 most interesting, compact, little species, which seems to be tolerably 

 common in the region cited. 



Thus far no specimens have been secured in the more interior parts of 

 the State, although some of those counties have been pretty thoroughly 

 examined. 



