HUNGERFORD: AQUATIC HEMIPTERA. 63 
the outer angle; posterior margin deeply concave; the anterior angles 
rounded off, and the anterior margin with a narrow collum. Prosternum 
and pleure shining black, golden pubescent, somewhat rugulose in 
places, very minutely scabrous. Legs black or soiled yellow, pubescent, 
and with some long erect hairs intermixed; the femora when yellow more 
or less black beneath, and dotted with piceous on the two sides; tibiz 
dull yellow, piceous at base and tip, with the spines piceous; tarsi soiled 
yellow, with the basal and apical joints or their apices piceous; nails very 
pale piceous. Scutellum large, almost flat, slightly depressed on the 
disk, densely scabrous, and on the apical part a little rugulose. Hemely- 
tra dull black, almost flat, densely shagreened, and depressed golden 
turned, and rapidly tapering to a termination behind the middle; corium 
marked with short, white or yellowish, linear spots, of which two are on 
the inner line of the costal area, a longitudinal series of about four near 
the outer side of the discoidal area, and two or three on the inner area, 
and a small spot near the inner angle of the clavus; membrane soiled 
white or yellow, with a cloud at base and tip, and about two transverse 
series of fuscous oval spots in the areoles, sometimes with the apexes of 
the areoles more or less blackish, the nervules blackish, and the outer 
areole broad-triangular. Venter short and broad, shining black, closely 
and finely clothed with prostrate yellowish pubescence. 
“Length to tip of venter, 4%-6% mm; to tip of membrane, 8 mm. 
Width of base of pronotum, 214-3 mm. 
“Inhabits Maine, Massachusetts, New York and Maryland, in Septem- 
ber; Texas, New Mexico, Missouri, Illinois, Michigan, Minnesota; Mac- 
kenzie river region, Robert Kennicott; Canada—near Saskatchewan 
river, and in the province of Ontario. 
“Specimens occur which are destitute of white spots upon the corium 
and clavus. I found numerous specimens upon the mud of the black 
marshes of Brighton and Cambridgeport, Mass., in the month of July. 
“The remarks under S. lugubris Say, in my paper printed in Dr. Hay- 
den’s Bulletin, vol. II, Nov. V, p. 67, belong to this species.”—Uhler as 
Saldula deplanata. 
Van Duzee’s catalogue adds Quebec, Rhode Island, New Jersey, Penn- 
sylvania, Wisccnsin and Kansas. 
Parshley adds New Hampshire. 
Acanthia confluenta Say, Heteropt. New Harmony, 25, No. 5. 
Saldula confluenta Say 1832. 
Acanthia confluens Say (emend, Le Conte), Complete Writings, I, 361, No. 5. 
Black; membrane of the hemelytra with a blackish band. Antennz 
pale at base; head and thorax immaculate; corium with a large marginal 
spot before the middle, and another at tip, two small spots; membrane 
with fuscous nervures and a continuous, blackish, arcuated band on the 
middle; feet whitish, tarsi with blackish tips; thighs with an obsolete 
brown line; venter whitish at tip. 
“Length to tip of hemelytra one-fourth of an inch. 
“Inhabits the United States. 
“The band of the membrane does not reach the inner margin. It is 
equal in size to A. ligata.”—Uhler as Salda confluens. 
Van Duzee’s catalogue lists Quebec, New York, New Jersey. 
Saldula orbiculata Uhler 1877. be 
Uhler Bul. U. S. G. G. Surv: III, p. 450, 1877. 
“Almost circularly ovate, deep dull black when invested with the 
clothing, but shining black when rubbed; the upper surface invested with 
long, erect, golden and blackish, almost matted pubescence. Head wide, 
from above blunt and short; the front almost vertical, a little curved, 
