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HUNGERFORD: AQUATIC HEMIPTERA. 123 
Microvelia atrata Bueno. 1916. 
Bueno, Bul. Brookl. Ento. Soc., XI, p. 60. 
“Head comparatively short and broad; eyes round, rather prominent; 
antennez short, rather stout, not much longer than head and thorax taken 
together, joint 1 stoutest, 3 thinnest, 2 shorest, 4 longest, fusiform, 3 
shorter than 4 and subequal to 1, which is longer than 2. Pronotum not 
much produced, rounded behind; humeri prominent. Collum yellowish 
with narrow black median line; suture before middle of thorax grayish 
pilose. Hemelytra not so wide as abdomen. Corium and clavus milk- 
white at base, a white patch in the middle cell. Legs comparatively 
short and stout, tibize straight in both sexes. Subparallel in shape. 
“General color, sooty black; pronotum narrowly flavous toward apex; 
connexivum flavous edged with black above and below; grayish black 
pilose beneath; femora light yellow basally. 
“Long., 2 mm.; lat., .9 mm. at humeri. 
“Type, female, Billy’s Island, Okefenokee Swamp, Georgia, June, 1912, 
collected by J. C. Bradley. 
“Allotype, male, differs from female in having the genital segment 
rounded and slightly prominent. Same locality and date. 
“TLong., 1.7 mm.; lat., .8 mm. at humeri. 
“Apterous male, subparallel in form; genital segment visible from 
above, small, not very prominent; a glabrous indentation in the last 
abdominal segment; connexivum not much reflexed; prothorax short 
with two more or less obscure transverse sutures. Vestigial wings visible 
at posterior edge of thorax as two minute milk-white pads. Entire in- 
sect brown pilose. 
“Long., 1.6 mm.; lat., .8 mm. at widest part. 
“Morphoparatype, apterous male from same locality, same date. 
“Apterous female, differs from male in form, which is obovate, and 
in the shape of the genital segment, which is visible from above. 
“Long., 1.8 mm.; lat., .9 mm. at widest part of abdomen. 
“Paratype, same locality and date as type. 
“Additional paratypes, four specimens of the forms. 
“This velvety black species secured in numbers by J. C. Bradley, and 
so far is known only thence.” 
Locality: Georgia. 
Microvelia borealis Bueno 1916. 
Bueno, Bul. Brookl. Ento. Soc., XI, p. 59. 
“Head with an impressed line down the middle; antenne slender; not 
quite as long as head and thorax taken together; joint 1 stoutest, 3 slen- 
derest, .2 and 4 nearly equal in thickness, the last fusiform; joint 2 
shorter than 1, which is subequal to 3 and shorter than 4, the longest; a 
white line next the eyes. Pronotum as long as broad, with a distinct 
collum, rounded behind, humeral angles prominent, tumid. Both head 
and thorax velvety black, except for the silvery stripe next the eyes in 
the former. Eyes round, diameter half the distance between them. Hem- 
elytra as wide as abdomen, entirely membranous; nervures prominent, 
black, cells gray, except apical, which is white. Femora slightly stouter 
than the tibie, legs pilose, posterior tibize curved, bases of femora lighter 
in color. Genital segment prominent. Fusiform in shape. 
“Long., 1.6 mm.; lat., .7 mm., at humeri. 
“Type, winged male, taken at Cranford, N. J., on the Rahway river, 
August 8, 1904. 
“Winged female: Differs from the male principally in the broader 
form, sides of abdomen subparallel and more or less curving; hemelytra 
do not quite cover connexivum; posterior tibie straight. 
“Long., 2 mm.; lat., .8 mm. 
