Vol. IX] VAN DUZEE—NEW HEMIPTEROUS INSECTS 337 



Color fuscous brown, paler on the humeral lobes, especially posteriorly, 

 and on the elytra; the latter varied with fuscous at base and in the areoles; 

 membrane fuscous with the brown veins bordered with whitish. First 

 segment of antennae and basal two thirds of second ferruginous; rostrum 

 legs and venter more or less rufo-ferruginous ; incisures of connexivum 

 pale. 



Described from one female taken by M. H. Ruhmann at 

 Vernon, B. C, April 28, 1915, and kindly sent to me for study 

 by Dr. H. M. Parshley to whom this species is dedicated in 

 appreciation of the valuable and painstaking work he is doing 

 on our North American Hemiptera. This species belongs to 

 the group having the pronotum depressed and minutely crenu- 

 late or granulated on the lateral margins and including com- 

 pressus Heid., tuber culifer Kirby and fun est us Bergr. 



Holotype in the Canadian National Museum at Ottawa. 



7. Aradus orbiculus, new species 



Apparently allied to heidemanni Bergr., but with a longer 

 rostrum and nearly circular abdomen in the female. Length : 

 male 8 mm. ; female 12 mm. ; width of abdomen, male 3 mm., 

 female 6 mm. 



Male : Body oblong, a Httle wider posteriorly, broadest at fifth abdomi- 

 nal segment. Head a third longer than wide across the eyes, much longer 

 than median length of pronotum, the anterior process forming one half its 

 length ; impressed mark either side the vertex granulated ; antenniferous 

 tubercles long, subacute, much divergent ; preocular tubercle small ; post- 

 ocular obsolete. Antennae almost as long as the head and pronotum on 

 the median line, moderately stout ; first segment short, hardly twice 

 longer than wide ; II longer than the head, one half longer than III 

 and IV together, a little thickened apically; III cylindrical, nearly twice 

 the length of the fusiform fourth segment. Bucculse slightly angularly 

 elevated; rostrum attaining hind margin of anterior coxae; first segment 

 not reaching base of head. Pronotum much narrowed anteriorly ; sides 

 straight ; hind angles broadly rounded ; width on anterior margin equal 

 to length on median line, less than half the basal width ; hind margin 

 deeply excavated. Scutellum narrow, deeply excavated, the basal eleva- 

 tion scarcely indicated ; its length equal to that of the head, and nearly 

 twice its basal width; sides parallel on basal one half; apex obtuse. 

 Elytra long and narrow, reaching on to the genital plates, the expanded 

 basal portion just passing the scutellum; their combined width at apex 

 of corium one third greater than their individual width at base ; veins 

 prominent, closely ramose on mesocorium; principal veins of the mem- 

 brane very prominent, the ramose veins almost obsolete. Genital lobes 

 long, subangled and oblique at apex, formed much as in compressus Heid. 



Female much larger than male, with the abdomen as wide as long 

 beyond tip of scutellum ; elytra short, oblong but slightly exceeding the 

 scutellum, with no indication of membrane ; sixth ventral segment as long 

 as the two genital segments together ; second genital segment very short, 



