GEOLOGICAL SURVEY OF THE TERRITORIES. 411 



and bebiud, connected by longitudinal stripes. Propleura coarsely 

 l^unctured, yellow, with a long black spot; the posterior pieces and 

 cox?e more or less black. Legs yellow ; tbe knees, base and tip of 

 tibse and tarsi all over black. Scutellum yellow or black, transversely 

 wrinkled. Hemelytra yellow, rather coarsely, closely punctured, and 

 transversely wrinkled j the inner margin of the cuneus, and a more or 

 less large spot near the end of the corium, black ; membrane almost 

 black ; the nervule deep black. Venter black, or pale yellow, with the 

 margins of the segments white, pubescent; ovipositor black. 



Length to tip of venter, 5-6 millimeters ; width across the humeri, 

 2|-3 millimeters. 



It inhabits Arizona, and was obtained by Dr. E. Palmer, to whom the 

 species is respectfully dedicated. 



Besthenia, Amyot et Serv. 



1. E. insignis, Say, (Heteropt., New Harmony, p. 22, No. 12.) — Collected 

 in Colorado; but it occurs also in New England, Illinois, and in the 

 Middle States. The species is very unstable in colors and pattern of 

 marking, varying from red with black spots to almost uniform black. 



2. E. confraterna. New species. — Form similar to E. insitiva, Say, but 

 with the pronotum a little narrower and longer ; prevailing color black, 

 opaque. Head convex, blood-red, with a large, more or less rounded, 

 spot on the disk ; a small spot at tip of the inferior gena, and the sur- 

 face of the tylus black ; rostrum reaching to the venter, piceous or 

 blackish. Antennse black, i)ubescent, about as long as the hemelytra, 

 slenderly tapering to the tip; the apical joint longer than the basal one, 

 but much shorter than the third ; second as long as the i>ronotum and 

 scutellum united. Pronotum crimson-red, one-third wider than long, 

 having a blackish, broad stripe along the disk, widened posteriorly, or 

 with a large rounded spot from the base to before the middle. Pectus 

 red ; the sternum and trochanters dusky ; legs blackish ; the coxse yel- 

 lowish. Scutellum black, or reddish only at base. Hemelytra entirely 

 black, longer than the abdomen. Venter red, pubescent ; usually more 

 or less dusky on the disk. 



Length to tip of venter, 6-6^ millimeters ; width across the humeri, 

 2f millimeters. 



Inhabits Colorado, Wisconsin, Illinois, Pennsylvania, and Maryland. 

 The collum of the pronotum is broad, as in E. insitiva^ Say. 



Lopidea, Uhler. 



Elongate-oval, the sides of hemelytra parallel. Head vertical, from 

 the front to the occiput short ; face transverse, fully twice as broad as 

 long, the front raised on the middle, the sides near the eyes correspond- 

 ingly depressed; eyes subhemisi^herical, prominent; occiput transversely 

 impressed, the carina higher in the middle; anteunoB placed just below 

 the line of the eyes, in length almost equal to the pronotum and hem- 

 elytra united ; the basal joint about equal to the breadth between the eyes ; 

 second joint three times as long as the first; third about two-thirds the 

 length of the second ; t^'lus vertical above, then curving inward below; 

 the superior cheeks small, elongate-quadrate; rostrum reaching to the 

 intermediate coxce, basal and second joints about equal in length, third 

 shorter tlian the second, the apical one subequal to the preceding. 

 Pronotum trapezoidal, about one-half wider than long; tlie lateral edges 

 carinately elevated; the middle of i)Osterior margin sinuated, deliexed; 



