UHLER ON INSECTS. 375 



convex, remotely, finely, obsoletely punctate, the tip broad. Corium 

 short and wide, the costal margin arcuated, rather uniformly, deeply 

 punctate, the sutures punctate in series, the subcostal linear impression 

 continued to beyond the middle and coarsely punctate ; membrane 

 short, broadly rounded, pale brownish. Venter very convex, polished, 

 ciliated across the segments, and with bristles on the outer edge of the 

 connexivum ; the lateral and posterior surface minutely punctate. 



Length 4i millimeters. Width of base of pronotum 2^ millimeters. 

 Width of venter 3 millimeters. 



Inhabits California and Mexico. 



Maceoporus Uhler. 



Broadly oval, feebly convex ; the sides of the head and pronotum 

 sparingly ciliated. Plead broad, clypeate ; the margins broadly re- 

 flexed ; the siibmargiu armed with short, erect teeth ; the tylus flat- 

 tened, a little narrowed at tip, the recurved margin crossing its tip ; 

 buccuhie almost percurrent, narrow, nearly straight, not expanded at tip. 

 Eostrum reaching between the intermediate coxse ; the basal joint a lit- 

 tle shorter than the bucculae ; the second long, rather shorter than the 

 third and fourth united; the two latter subequal. Antenucne, basal 

 joint not quite reaching the apex of the head ; the second more slender, 

 very short ; third longest, gradually enlarging toward the tip ; fourth 

 and fifth subequal, each a little shorter than the third j moniliate, long, 

 ovate. Pronotum transverse, subquadrate, the sides oblique, narrowing 

 toward the front, remotely ciliated, and curved inward toward the acute 

 anterior angles ; the edge recurved ; the anterior margin deeply sunken 

 to receive the head ; the submargin with an impressed line running par- 

 allel to the margin, and bounding a rim-like collum; the posterior mar- 

 gin a little arcuated, the angles rectangular, the humeri not prominently 

 elevated, and without a sinus on the adjoining margin ; the surface 

 almost destitute of the transverse, impressed line; behind each eye with 

 an excavated point. Ostiolar canal very long, slender, flat, reaching 

 almost to the outer margin of the episternum, slenderly grooved and 

 carinate ; the tip thickened, widened, and rounded. Scutellum short, 

 almost as wide as long; the tip narrow, obliquely rounded, not extend- 

 ing beyond the inner angle of the corium, the sides near the tip very 

 feebly sinuated. Prosternum but slightly elevated ; the lateral lobes 

 blunt, drawn down in front, and transversely indented there. Anterior 

 tarsi moderately flattened, few-spined. Corium broad, reaching to the 

 penultimate segment of the abdomen ; the costal margin broadly arcu- 

 ated near the tip ; the edge blade-like and broadly recurved at base. 



M. repedtus, new sp. 



Broadly oval, castaneous, or rufopiceous, broad posteriorly. Head 

 bluntly rounded in front, with short, close teeth and remote bristles ; 

 the margin broadly recurved, rufescent ; the submargin grooved ; disk 



