SUBFAMILY I. — PENTATOMIN^E. 143 



aa. Head as wide or wider across the eyes than long, its sides in front 

 of middle curved; veins of membrane anastomosing; side margins 

 of pronotum broadly curved; larger, 9 — 11 mm. 95. nervosa. 



94 (140). Hymenarcys ^qualis (Say), 1831, 7; I, 319. 



Oblong-oval, subconvex. Above grayish- or brownish-yellow, thickly 

 marked with reddish or fuscous punctures; antenna? yellow, flecked with 

 reddish dots, apical joints fuscous; scutellum with a small whitish spot 

 each side of apex; connexival segments fuscous with a median pale spot; 

 membrane f uscous-bi-own ; under surface yellow with numerous reddish 

 points and punctures; legs yellow with purplish-red dots; spiracles, the 

 front angle of the end of each ventral and the tip of beak blackish. 

 Cheeks thickly punctate; tylus strongly convex, sparsely punctate; an- 

 tennae with joints 2 — 4 subequal, fifth longer. Pronotum with humeral 

 angles obtusely rounded ; disk rather sparsely unevenly punctate, with 

 numerous irregular smooth areas. Scutellum and elytra sparsely, ir- 

 regularly punctate; membrane just reaching tip of abdomen, its veins 

 simple, oblique and parallel. Connexivum narrowly exposed. Length, 

 6.5 — 8 mm.; width, 4 — 5 mm. 



Found throughout Indiana, but much more frequent in the 

 southern portion, Feb. 7 — Nov. 19. Occurs in summer on mul- 

 lein, thistle and other plants in dry or sandy soils. In winter 

 a common and gregarious species beneath logs, mullein leaves, 

 etc. On one occasion, along the edge of the sandy bottoms of 

 the Wabash River, 50 or more were found huddled together in 

 the mould beneath an old half buried log, where they were 

 keeping company with chinch bugs and the common lady beetle, 

 Megilla maculata DeG. 4 They evidently begin to seek cover 

 after the first frost, as on Oct. 16 three were sifted from the 

 debris of a rotten chunk. 



The species was described from Indiana, and ranges from 

 New England west to Colorado, Montana and Saskatchewan, 

 and south and southwest to Oklahoma and Texas. I have not 

 taken it in Florida, nor is it included in Barber's "Hemiptera 

 of Florida," but Van Duzee in his Catalogue includes that State 

 in his distribution notes. In most places cvqualis appears to be 

 a scarce species, but few of the local lists mentioning the tak- 

 ing of more than one or two individuals ; this, perhaps because 

 the collectors do not seek for it in the proper places, or during 

 its hibernating period. Uhler (1876, 287) states that "In 

 Maryland it hibernates beneath stones in sheltered valleys, but 



34 See Psyche. VII. 3 895. 268. 



