THE WATER-BOATMEN. 1079 



1234 (1463). Arctocorixa gordita (Abbott), 1913, 84. 



Short, plump, with short broad head; pronotum and clavus rastrate. 

 Tawny yellow with dark brown markings; head brownish-yellow, its 

 hind margin fuscous ; pronotum lenticular, with seven parallel dark 

 brown cross-bars; clavus with cross-lines oblique, entire; lineations of 

 corium very dark, irregular, confused, coalescent to form a large irregu- 

 lar blotch near inner apical angle; membrane with markings irregular, 

 vermiculate, a dark spot on lower outer edge; under surface dusky; legs 

 yellow, hind tarsi brown. Male with frontal impression shallow, ovate, 

 reaching eyes, its middle with a convexity or callus; pala as in fig. 215, k, 

 nearly four times as long as wide at base; pegs 22, in an almost straight 

 line near lower margin. Length, 4 — 4.5 mm. 



Described from several stations in Georgia ; not recorded 

 elsewhere. 



1235 (1441). Arctocorixa lateralis Leach, 1817, 17. 



Cinereous or yellowish-gray; pronotum with 7 — 9 narrow curved 

 black lines ; inner basal angles of clavus without lines, remainder with 

 narrow, crowded, blackish, irregular confluent ones; corium with dark 

 lines crowded, broken, angulated, forming on the disk, by their points of 

 contact, three longitudinal dark streaks; membrane with front margin 

 brown, the others pale, its disk with fine, irregular black reticulations, 

 these radiating and parallel from along the margins; legs pale, basal 

 joint of hind tarsi blackish; dorsum black, embolium pale. Male with 

 frontal impression elliptical, reaching slightly above the lower angles of 

 eyes; pala broad, cultrate, its apex rounded; ventrals 1 — 4 black, re- 

 mainder yellowish. Length, 4.7 — 5.3 mm. 



A widely distributed European species, known in this coun- 

 try only from Pennsylvania. The A. hieroglyphica (Duf.) is a 

 synonym. 



1236 (1442). Arctocorixa lineata (Forster), 1771, 70. 



"Pale yellow; elytra concolorous and with three longitudinal fuscous 

 stripes ; head yellow, obtuse ; eyes brown ; thorax yellow with three trans- 

 verse fuscous lines; inner wings whitish, pellucid; abdomen, legs and 

 pectus pale yellow. Length, 4.2 mm." (Forster) . 



Described from "North America." Recorded from New York. 



1237 (1443%). Arctocorixa modesta Abbott, 1916, 343. 



Tawny yellow with brown lines; pronotum subtriangular with nine 

 unbroken brown cross-lines; clavus with narrow yellow margin, the 

 brown lines broken, forked and confluent; corial lineations inosculate, 

 tending to coalesce in a stripe along the margin, those of membrane 

 uniting to form a central spot. Pronotum, clavus and basal half of 

 corium strongly rastrate. Male with frontal impression elliptical, reach- 

 ing middle of eye; pala cultrate, slightly produced at base, somewhat in- 

 curved ; pegs 33 in a single row. Length, 5 mm. 



