THE WATER-BOATMEN. 1085 



brown cross-bars ; clavus with dark cross lines distinct near base, else- 

 where very irregular; dark markings of corium arranged in three vague 

 irregular longitudinal rows; head, under surface and legs pale dull 

 yellow. Pronotum and clavus minutely rastrate, corium smooth, shining. 

 Male pala short, cultrate, twice as long as wide, the basal two-fifths 

 covered by the tibial spur. Length, 3.3 mm. 



Lakehurst, N. J., May 29 (Davis) ; one specimen labelled 

 "Trichocorixa micronectoides Plunkett." Described from Raleigh, 

 N. Car. Recorded elsewhere only from Oglethorpe, Ga. 



1249 (1466). Corixa minima Abbott, 1913, 86. 



Dull yellow with brown markings; eyes silvery gray; pronotum finely 

 rastrate, narrower than head, rounded behind, twice as wide as long, 

 with five or six blackish, confused cross-bars; pale lineations of clavus, 

 except at base, inosculate, confused; those of corium vermiculate, united 

 along the margins, not broken to form series; membrane with markings 

 effaced; embolium sordid or dusky; legs and under surface pale. Male 

 with frontal impression oblong, occupying all the face; vertex carinate; 

 tibia? produced over pala for one-third its length; pala short, cultrate; 

 pegs 12 in a straight row. Female paler than male with five unbroken 

 pronotal lineations. Length, 3.3 mm. 



Natick, Mass., Aug. 30 (Frost). Described from Georgia and 

 recorded only from that State. 



1250 ( — ). Corixa pulchra sp. nov. 



Oblong, slender, sides subparallel. Head yellow, vertex with three 

 fuscous lines; pronotum with five parallel yellow cross-lines, the median 

 one sometimes partially united with the second ; clavus with an oblique 

 pale area as in key, the dark bars on outer side of this oblique, parallel, 

 more or less broken, wider than the pale ones; corium and apical portion 

 of clavus with pale marks vermiculate and much broken, those on mem- 

 brane longer and subparallel, less broken but very sinuous or undulate; 

 embolium, hind tarsi and a streak on tibia? fuscous. Vertex with sides 

 subparallel, its base about three-fifths that of basal width of an eye, 

 disk with a median carina. Pronotum subtriangular, two-thirds wider 

 at middle than long, male, twice as wide, female, hind margin obtusely 

 angled, disk minutely almost invisibly rastrate. Elytra smooth. Male 

 with frontal impression deep, subelliptical, its sides parallel, reaching 

 between apical fourth of eyes; tibia? distinctly projecting over pala, the 

 latter scarcely twice as long as high at middle, upper margin arched, 

 its front strongly deflexed, pegs about 16 in an oblique median row. 

 Female with front convex, dark median carina of vertex reaching below 

 eyes ; pala shaped as in male. Length, 3.5 — 3.8 mm. 



Dunedin, R. P. Park and Palmdale, Fla., Nov. 20— April 17 ; 

 common in ditches and ponds about Dunedin ; also taken from 

 between the culms and leaves of sedges ; frequent in ditches 



