896 



FAMILY XXIX. — MIRID,£. 



turn and calli as in key; scutellum brownish-yellow with piceous stripe 

 each side, margins and tip of median line paler; elytra glabrous, shining, 

 base of clavus and large spot on disk of corium piceous, embolium pale; 

 cuneus pale translucent, its apex fuscous; membrane as in b of key; legs 

 pale brownish-yellow, femora, especially the hind ones, darker toward tip; 

 ventrals blackish in male, paler in female. Joint 1 of antennae black or 

 dark brown, slightly longer than width of vertex surpassing tylus by 

 half its length; 2 brown or blackish, often pale at middle, pubescent with 

 long pale hairs, three times the length of 1 ; 3 and 4 brownish to black, 

 3 two-fifths the length of 2; 4 three-fourths as long as 3, male, one-half 

 as long, female. Beak reaching tips of middle coxae. Length, 6.4 — 7 

 mm. (Fig. 186, a). 



Fig. 18ti. a, Derceocoris borealis Van D. X S ; b, Li/aus hirticulus Van D. X 10. 

 (After Drake, Tech. Publ. 16, X. Y. St. Coll. For.). 



Quinz Lake, Quebec, Aug. 7 {Van Dusee). Ranges from Nova 

 Scotia and New England west to Wisconsin and south to New 

 Jersey. Occurs on alders in damp cool shaded places. 



991 ( — ). DerjEOCOris fasciolus Knight, 1921, 123. 



Brownish-yellow, marked with fuscous punctures; vertex with 

 brownish transverse markings, tylus with two dark stripes; calli bordered 

 behind with a transverse blackish line; scutellum either uniform dull 

 yellow or brownish-yellow with two darker stripes; apical two-thirds of 

 clavus and corium a somewhat darker brown than the remainder of 

 elytra; basal half of embolium yellow dotted with small fuscous punc- 

 tures, apical half darker; cuneus yellowish translucent, the tip brown; 

 membrane as in b of key; legs and sterna greenish-yellow, hind femora 

 with two brownish rings on apical third ; tibia? usually with two vague 



