1074 FAMILY XL. — CORIXID^E. 



ee. Inner basal third of clavus without an immaculate pale area, or, if 

 present, the pronotal cross-lines and length not as in e. 

 f. Pale and dark cross-lines of clavus entire (or slightly forked) 

 in distinct contrast with the confused and broken ones of 

 corium; length, 6 — 7.8 mm. 

 (j. Pale markings of corium coalescent to form three longitudinal 

 stripes with edges almost entire. 1226. trilineata. 



!/!/. Pale markings of corium confused, much interrupted, not ar- 

 ranged in unbroken stripes. 

 h. General color dark fuscous-brown on a yellowish background; 

 entire upper surface strongly rastrate; male pala and pegs 

 as in pi. XII, fig. 11. 1227. alternata. 



hh. General color umber or brownish-yellow on a cream or ochre- 

 ous background; male pala and pegs as in pi. XII, fig. 12. 



1228. PARSHLEYI. 

 //. Pale cross-lines of clavus, except at base, much interrupted and 

 of the same character as those of corium; length (except in 

 vulnerata) less than 6 mm. 

 i. Pale markings of corium short, narrow, vermiculate, arranged in 

 three quite definite longitudinal rows; ground color blackish- 

 fuscous ; dark pronotal cross-lines 6 — 7, wider than pale ones ; 

 vertex and front half of pronotum carinate. 1229. signata. 

 ii. Pale markings of corium not arranged in definite rows ; ground 

 color rarely blackish-fuscous; dark pronotal cross-lines 7 — 9. 



1230—1242. Species a— z. 



1221 (1435). Arctocorixa hydatotrephes Kirkaldy, 1908, 119. 



Oblong, slender, parallel. Vertex of male dark brown; lower front 

 of head and legs pale yellow; pronotum either wholly blackish or with 

 3 — 5 very narrow pale cross-lines; elytra as in key, claval sutures, edges 

 of commissure and outer edge of corium, yellow; embolium fuscous; under 

 surface in great part brown, the margins of sterna and basal halves of 

 ventrals paler. Vertex of head less than one-third the width of prono- 

 tum, marked by two rows of coarse punctures. Pronotum short, sub- 

 pentagonal, hind margins rounded, both it and elytra minutely rastrate. 

 Male with front of head without evident impression; pala short, broad, 

 arched, with about 18 pegs parallel to the arched curved dorsal margin. 

 Female with head wholly pale and palas more elongate, less arched. 

 Length, 6 — 6.5 mm. 



Raleigh and Windsor, N. Car., April 12— Oct. 21 (Brimley). 

 Recorded elsewhere only from Spring Creek, Decatur Co., Ga., 

 where Bradley found it common in June in heavily shaded 

 cypress-bordered pools. Easily known by the solid dark brown, 

 pale bordered divisions of the elytra. 



1222 (1447y 2 ). Arctocorixa seriata Abbott, 1916, 342. 



Dark brown; head yellow; pronotum with five pale cross-lines; claval 

 lineations mostly entire; those of corium and membrane much broken 

 and indefinitely seriate. Pronotum and clavus very rastrate. Male with 



