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 pleurae 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; tibiae 

 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 

 pubescent; costal margin expanded and arcuated at base, the lobe up- 

 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:V2-QV2 mm; to tip of membrane, 8 mm. 

 Width of base of pronotum, 2^/^-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. hig^tbris 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, Wisconsin and Kansas. 



Parshley adds New Hampshire. 



Saldula confluenta Say 1832. 



Acanfhia confluenta Say, Heteropt. New Harmony, 25, No. 5. 

 Acanthia eonfliiens Say (emend, Le Conte), Complete Writings, I, 361, No. 5. 



Black; membrane of the hemelytra with a blackish band. Antennae 

 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. 



Uhler Bui. U. S. G. G. Surv. Ill, 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, 



