I 



182 FAMILY V. — PENTATOMIDjE. 



large, irregular brown spot, furcate behind, reaching 

 from base to apical fourth; elytra yellow with a brown 

 spot of varying size on corium; membrane fuscous, 

 the tip paler; under surface bluish-green with yellow 

 markings and dark spots as in anchorago; legs and 

 antenna? reddish-brown, the middle and hind femora 

 and tibiae with yellow markings. All the reddish- 

 brown spots above at times tinged with greenish or 

 Fig. 37, x 2 1 -... faintly bronzed. Pronotum with the coarse punc- 

 tures confined mainly to the basal half of the median 

 brown stripe and to the dark spots each side, the yellow areas almost 

 smooth. Length, 8 — 10 mm.; width, 5 — 6 mm. (Fig. 37). 



Putnam, Lawrence, Knox, Crawford and Posey counties, Ind., 

 April 26 — July 10. Taken from flowers of wild plum on the 

 former date ; beaten from sumac, and mating, June 5. A mem- 

 ber of the Austroriparian fauna, but ranging from New Eng- 

 land west to Iowa and Kansas and south to Florida and Texas ; 

 Barber (1914, 524) recording it from Jacksonville, Charlotte 

 Harbor, Lake Worth, Sanford and Little River, Fla. Say's 

 types were from Pennsylvania. Uhler (1878, 369) states that 

 "in Maryland it frequents the sumac, Rhus glabra L., and sucks 

 the blood of the larva of a species of Galeruca which feeds on 

 that plant." He probably referred to the Chrysomelid beetle, 

 Blepharida rhois Forst., which feeds almost exclusively on sumac. 

 Glover (1876, 68) calls it the "bordered soldier bug," and 

 states that "it preys upon the larva? of the Colorado potato 

 beetle, Doryphora io-lineata (Say). Seven or eight individuals 

 were found in the web nest of a social caterpillar and also were 

 seen destroying the larvae of Papilio asterias or Asterias butter- 

 fly." 



This species is usually recorded as a variety of anchorago, but 

 I have not seen nor can I find mentioned any intermediate form. 

 The punctures of pronotum are fewer and more unevenly 

 placed and the basal third of pronotum more convex, with 

 basal margin next to humeral angles more abrupt and less pro- 

 longed. The dark markings on the upper surface, while vary- 

 ing from reddish-brown to greenish-bronzed in hue, are very 

 uniform in size and shape, the peculiar bifurcate one of scutel- 

 lum being especially notable. 



The large and peculiar depressed pubescent spaces on each 

 side of ventrals 4 — 6 in the males of Stiretrus and some of the 

 allied genera are especially noteworthy. Their function has 

 not as yet been satisfactorily determined, though Stal in his 



