1080 FAMILY XL. — CORIXID^E. 



Described from Maryland, Virginia and District of Columbia. 

 Not recorded elsewhere. 



1238 (1445). Arctocorixa pectenata Abbott, 1913, 83. 

 Olivaceous; head dull yellow; pronotum subcordate with seven parallel 



straight yellowish lines; lineations of clavus entire, those of corium 

 coalescent to form a vitta on the inner angle; those of membrane con- 

 fused, uniting in a central fleck and a darker spot on outer border; legs 

 pale, hind tarsi brown; thoracic pleura pale, abdomen dark. Male with 

 frontal impression shallow, long and narrow; pala lanceolate, strongly 

 compressed, deeply excavated on outer surface; pegs 24 in an irregular 

 row along lower margin, the basal seven small. Length, 4.5 mm. 



Described from Marietta, Ga. ; not recorded elsewhere. 



1239 ( — ). Arctocorixa scabra Abbott, 1915, 83. 



Tawny yellow with broad brown markings; head yellow; pronotum 

 with seven brown cross-lines, these about as wide as the yellow ones ; 

 clavus coarsely rastrate, its brown bars entire, subequal in width to pale 

 ones; corium very finely rastrate, its inner hind angle pale, brown mark- 

 ings broad, confluent, vermiculate, indefinitely longitudinally seriate. 

 Male with frontal impression pear-shaped, reaching above front of eyes; 

 pala as in pi. XII, fig. 17; pegs 22 — 24 in an evenly curving, nearly 

 median row. Length, 4.7 — 5 mm. 



Ranges from New England southwest to Georgia. 



1240 ( — ). Arctocorixa sigmoidea Abbott, 1915, 82. 



Closely allied to compressa but smaller, more slender and paler, with 

 finer rastration which covers the whole surface of elytra. Pronotum 

 with six dark umber parallel bands, the fourth and fifth not reaching 

 the margins, these three to four times the width of the yellow cross- 

 lines. Elytra with brown markings variable, broad, confluent, vermicu- 

 late, more or less triseriate, the yellowish ones reduced to broken dots 

 and dashes; hind portion of membrane widely bordered with dark brown; 

 under surface and legs dirty white; hind tarsi brown. Male with frontal 

 impression oblong-oval, slightly surpassing base of eyes; pala flattened 

 and warped as in compressa, almost hemispherical in outline, the tip 

 produced in a nose-like projection with a terminal spine; the 13 or 14 

 pegs of basal half short, blunt, crowded and arranged in an S-shaped 

 curve; the 6 or 7 on apical half more slender and widely spaced, follow- 

 ing the upper contour of the pala. Length, 4 — 4.5 mm. 



"The most abundant species in southern Georgia, the males 

 easily identified by the peculiar palse, the females difficult to 

 discriminate from those of compressa." (Abbott). Known only 

 from that State. 



1241 (1450). Arctocorixa stagnalis (Leach), 1817, 16. 

 Blackish-fuscous; pronotum with eight transverse yellow lines, these 



sometimes abbreviated or forked; lineations of clavus entire, parallel. 



