HUNGERFORD: AQUATIC HEMIPTERA. 67 
whitish, with a large black spot at the base inwardly, a small subquadrate 
one against the base exteriorly, and behind this an orange spot which is 
bounded behind by another black spot; the nervures blackish. Others 
have the membrane black, with a yellow spot against the exterior margin 
and a few pale vestiges on the middle. Venter, black, more or less tinged 
with piceous, polished, very remotely pubescent, minutely inconspicuously 
punctured, tip of the genital segment broadly white. Length, 4- 4% mm. 
Humeral breadth, 1% mm. Extreme width of hemelytra, 2 mm.’’—Uhler. 
Distribution: “Canada, New Hampshire, Massachusetts and Pennsyl- 
vania.”—Van Duzee. 
Parshley adds Vermont. 
LSaldula reperta Uhler 1877. 
Whler Bulls. Ss Go GzeSury.,, LiL, pe 447 1877. 
“Closely resembles S. marginalis Fallen. Deep, dull black, sparsely 
clothed with golden prostrate pubescence, and the head and pronotum 
with a few erect black hairs. Head above broad and blunt, the base form- 
ing a short neck; the surface minutely scabrous; eyes prominent, brown- 
ish, moderately oblique; front moderately narrow and flat, not distinctly 
arched at base; the lower margin of the clypeus callous, feebly recurved, 
testaceous, black in the center; tylus and labrum forming an arched 
bridge, dull ocherous, the former a little concave on the sides inferiorly, 
the latter piceous at tip and a little pubescent. Rostrum reaching upon 
the intermediate coxe, dark piceous, paler at tip. Antennz moderately 
stout, clothed with pale, stiff hairs; basal joint dull yellow, black beneath; 
second piceous, paler at base and tip, not twice as long as the basal one, 
and a little thickened at tip; third and fourth dull blackish, subfusiform, 
subequal, each longer than the basal one. Pronotum transverse, sub- 
trapezoidal, rather flat, with the sides very oblique, hardly curving; the 
submargin broadly depressed and gradually narrowing toward the front; 
the callosities feebly elevated, deeply and broadly foveate in the center, 
bounded by a deeply impressed line; the surface minutely and densely 
rugulose; posterior margin very slightly concave, with the humeral angles 
moderately produced, very broad, and with a large, low fold near the 
outer angle. Scutellum scabrous at base, minutely, transversely wrinkled 
on the apical half; the central impression lunate, distinct. Legs dull 
testaceous, very hairy, more or less marked with piceous on the femora, 
particularly beneath, on the tibiz, somewhat in spots, the tips, spines, and 
the basal and apical joints of the tarsi piceous-black, the nails dull tes- 
taceous. Sternum and under side of the body shining black, minutely, 
closely whitish pubescent; the extreme edge of the prosternum and of the 
ventral segments and a broad end of the genital segment of the female 
whitish. Hemelytra deep black; the corium closely yellow and black 
pubescent, densely shagreened, the costal margin moderately arcuated, 
broadly and continuously flattened, recurved from the base to behind the 
middle; the costal area with a testaceous small spot behind the middle 
and two smaller parallel ones near the tip, the middle nervure with a spot 
near the base, and the middle areole with a larger spot at tip and two or 
three smaller ones near the tip; the clavus with a small yellow spot near 
the tip; membrane dull white, fuscous at base and with a broad cloud at 
tip, a transverse series of oblong fuscous spots across the middle and a 
Spor at the tip of the exterior areole; the nervures piceous or black. 
*ength to tip of hemelytra, 4-44% mm.; to tip of venter, 344-4 mm. 
Wiath of base of pronotum, 14% mm. 
“A few specimens from the Museum of Comparative Zodlogy, collected 
in Cambridge, Mass. 
“This is a robust little species, very closely related to S. interstitialis 
Say, and perhaps only a variety of it. But the different shape of the 
pronotum, with the other details, will at present serve to separate it.”— 
Uhler. 
Distribution: Quebec, New Hampshire and Massachusetts. ait 
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