18 EDWARD P. VAN DUZEE. 



Eurygaster alteriiatus Say. 



Tliis is probably tlie most abundant and universally distributed 

 iScutellerid found in North America. It is common throughout tlie 

 northern States and Canada and is perhaps equally abundaiit in the 

 Rocky Mountain region south to New Mexico and west to California. 

 On the eastern side of the continent, according to Dr. Uhler, it is 

 rarely found so far south as Maryland. I once took it in great 

 numbers from the sedges on the flats bordering Quinipiac River, 

 near New Haven, Conn., and everywhere it shows a preference for 

 swampy spots. This species varies much in size, — ^^ to 10 mm. in 

 my material, —and equally in the distinctness of its markings. 

 Some individuals are quite strongly suffused with pink, and fre- 

 quently the dark alternations on the connexivum are nearly or quite 

 obsolete. 



Eurygaster carinatiis n. sp. 



Form of hottentotas uearly, a little smaller, but distinctly larger than alter- 

 aiitiis, depressed, triangular before, scutellum with a tumid base and carinate 

 line. Color testaceous grey, becoming ochraceons on the abdomen, disk of the 

 pronotum closely dotted with smooth pale points some of which become conflu- 

 ent. Head triangular, more obtuse and less incurved than in hottentotus, sides 

 very slightly concave, surface almost flat, regularly punctate; tylus reaching 

 almost or quite to the apex of the head. Rostrum attaining the posterior coxse. 

 AntenniE rufous brown or fuscous, second, third and fourth joints subequal, 

 fifth longest. Pronotum depressed, the latero-posterior edge deeply arcuated 

 behind the prominent and subacute humeri, latero-anterior margin straight, 

 continuing the line of the head. Scutellum rather narrow, edges slightly con- 

 cave near the middle, the surface strongly depressed either side leaving a tri- 

 angular tumid base and carinate line which becomes evanescent toward the 

 depressed tip. Connexivum ochraceous with coarse black punctures segregated 

 on the middle of each segment. Pleural pieces coarsely punctated, marked 

 with a smooth area on the middle of the pro- and meso-pleurge ; osteolar canal 

 lilack on the expanded apex. Venter more finely and obscurely punctured, 

 marked on each segment with marginal groups of black punctures, a double 

 median group more or less distinct and sometimes an intermediate group. Apex 

 of the genital segment of the male more deeply sinuateil than in alteniatus. 

 Length 10 to 12 mm. 



Described from two male and three female examples taken from 

 the following localities : Salt Lake City, Utah, one example taken 

 May 80th by Mr. C. Wesley Browning and one received from Prof. 

 Herbert Osborn ; Moscow and Levvistown, Idaho, two examples 

 taken by Prof. J. M. Aldrich ; and Reno, Nevada, one example 

 taken by Prof. H. F. Wickham, July 18, 1903. This very distinct 

 form may be distinguished from our oidy other known North Ameri- 



