ri078 FAMILY XL. — CORIXIDiE. 



numerous small transverse lines not reaching the median suture; remain- 

 der of corium with two longitudinal more or less undulated yellow lines; 

 membrane with numerous yellow marks. Sterna, ventrals and legs pale 

 yellow; hind femora with a small brown annulus near apex. Length, 

 4.5 mm." (Provancher) . 



Described from Quebec and recorded only from there. 



1231 (1424). Arctocorixa calva (Say), 1832, 38; I, 366. 



"Body above, glabrous, polished. Pale yellowish; head yellow; prono- 

 tum with eight or nine transverse black lines; elytra with numerous un- 

 dulated or angulated black transverse lines which are more or less bifid 

 and inosculated ; those of the anterior inner portion not larger than the 

 others ; lateral grooves and all beneath yellowish-white. Length less than 

 one-fifth of an inch. Inhabits United States. Quite distinct from the 

 interrupta and alternata nob., which are both minutely rugulose." (Say). 



The above is the original description. Fieber (1851a, 19) 

 evidently described a different insect under Say's name, as he 

 mentions a fuscous species with hemelytra "longe-pilosa." The 

 species has been recorded from Ontario, New England, Pennsyl- 

 vania, Colorado, Texas and Alaska. Judging from the original 

 description it very probably belongs to the genus Corixa. 



1232 ( — ). Arctocorixa compressa Abbott, 1915, 81. 



Dark brown; head sordid yellow; pronotum with 7 — 8 very broad, 

 parallel cross bars, each nearly twice as wide as the alternate yellow ones; 

 claval lineations broad, confused, confluent; those of corium vermiculate 

 in two or three indefinite longitudinal rows; embolium fuscous; hind 

 portion of membrane bordered with brown ; under surface and legs 

 sordid to brown. Pronotum strongly rastrate, keeled in front, obtusely 

 rounded behind. Clavus minutely rastrate, corium smooth. Male with 

 front flat; pala as in pi. XII, fig. 15, compressed, bent in the middle 

 as if pinched; pegs 20 — 21 in an even curving median row. Length, 4.7 

 — 5.2 mm. 



Recorded from Connecticut and various stations in Georgia. 



1233 (1429). Arctocorixa erichsonii Fieber, 1851a, 35. 



Blackish fuscous; pronotum with nine or ten transverse curved pale 

 lines, its margins fuscous; clavus with pale lines parallel, oblique, entire; 

 corium with lines subparallel, longitudinally interrupted, approximate, 

 some of them forked, its inner apical angle with a black stripe; marginal 

 line of costal area yellowish, finely denticulate; membrane rhomboidal, 

 its suture yellow, margins black, its pale lines oblique, confluent; legs 

 pale; dorsum black, male, its sides pale, female; middle of mesosternum 

 fuscous; male with five ventrals black; female with two. Male with pala 

 cultrate, its base beneath produced; frontal impression obovate, reaching 

 middle of eyes. Length, 5.5 mm. 



Described from Pennsylvania. Not recorded elsewhere. 



