hungerford: aquatic hemiptera. 57 



broad, flat lobes, with a little hump at the outer corner; surface finely 

 pubescent, closely, finely, obsoletely punctate; with a dull black spot on the 

 disk of the anterior lobe, which sometimes runs back narrower to the 

 base, and on each humeral angle a black spot. Antepectus sand-yellow, 

 but generally with the middle line of the sternum black; mesosternum, 

 excepting its lateral lobes and posterior margin, black; metasternum 

 also black. Legs sand-yellow, the coxje m^ore or less black, as also the 

 apex of the tibiae, and a band on the tips of the second and third tarsal 

 joints; nails generally testaceous. Scutellum black, minutely punctate, 

 finely pubescent, arcuately impressed before the middle and with a slight 

 elevated hump each side, usually carrying a yellow spot; the apex acute 

 broadly yellow, or with two yellow, approximate spots, the lateral edges 

 sometimes yellow. Corium sand-yellow, or whitish and yellow, minutely 

 punctate and pubescent, marked with black or fuscous in very varying 

 proportions, generally with a double black spot on the costal area before 

 the middle, a similar spot behind the middle, and a smaller rounded one 

 at tip; disk next the clavus and the clavus fuscous or blackish, the latter 

 sometimes with a small yellow spot near the inner posterior angle, the 

 former very often with a large yellow spot in the middle of the posterior 

 margin, and often the margin itself yellow; membrane sand-yellow, some- 

 times clouded with fuscous, and with a short transverse black band at 

 base, the nervures piceous, long, and nearly straight. Venter pale yellow, 

 finely pubescent, more or less blackish at base, and streaked on the disks 

 of the segments each side, and sometimes with a row of black points a 

 little way from the lateral margin ; the genital segments and ovipositor 

 more or less blackish. The spots on the costal area are frequently want- 

 ing, or have only traces present; occasionally the tip of the slender 

 cuneus is black. Generally the whitish spots at the apex of the discoidal 

 area of the corium are present and very conspicuous. 



"Length to tip of venter 5-6 millimeters; to tip of membrane 6-7% 

 millimeters. Width of base of pronotum 2% -3 millimeters. 



"First obtained in Cuba; afterward in Sonora, Mexico; since then on 

 the sea coasts of Massachusetts, North Carolina and Georgia. I have 

 met with it in large numbers on the sea coast of Worcester county, in 

 Maryland, in July and August. It lives on the pale sands not remote from 

 the beach, and the darker varieties may be met with running briskly 

 over the gray or blackish sandy mud, neglecting the dry spots, but often 

 swarming upon the moist places. 



"The genital segment of the male has a long, curved, acutely tapering 

 appendage, and two shorter and straighter approxim.ate ones in the 

 middle, superiorly." — Uhler. 



In the matter of distribution. Van Duzee adds New Jersey, Florida, 

 Texas and California. 



Parskley adds New Hampshire. 



Pentacora hirta (Say) 1832. 



Acanthia hirta Say, Heteropt. New Harmony, 34, No. 2. 



"Brownish, darker before. Body densely hairy, dull yellowish-brown or 

 fuliginous; head a little darker at base; thorax blackish before the trans- 

 verse line. Scutel blackish. Hemelytra conspicuously hairy, with dull 

 yellowish spots, as well on the membrane as on the corium. Pectus a 

 little varied, with the remaining inferior surface, including the feet, 

 immaculate. 



"Length to tip of hemelytra under one-fourth of an inch. 



"This species may be recognized by its more obviously hairy vesture; 

 its color is also paler than usual in this genus. Inhabits Indiana." — Uhler. 



To Indiana, Van Duzee adds Quebec, Connecticut, New York, New 

 Jersey, Florida and Texas. 



