HUNGERFORD: AQUATIC HEMIPTERA. 133 



and tibiae, small in size (2 lines long). The three last antennal seg- 

 ments very small compared to the first, a character belonging also to the 

 previous species {V. Hvuloruvi) . The examples are completely developed, 

 having three segniented tarsi and thus can not be larvae." 



"Champion, who examined one of Burmeister's types, says that seg- 

 ments 2 and 3 of the intermediate tarsi are equal in length and that the 

 eyes do not reach the front of the pronotum." 



Reported now from Pennsylvania, District of Columbia, North Caro- 

 lina, as well as West Indies. 



Velia hrachialis Stal. 



Stal., Rio Jan. Hemipt., I, p. 83, 1860; Champion, Biol. Centr. Am. Heter., II, p. 141. 



"Winged form. Moderately elongate, brownish-fulvous or brownish- 

 testaceous, the posterior half of the pronotum fuscous; the venter and 

 pleura more or less fuscous, and grayish-pruinose; the antenna testa- 

 ceous or brown, with the second joint darker at the base and apex; the 

 legs flavous, annulated with fuscous; the coxae and trochanters flavous; 

 the elytra blackish-brown, with a long silvery-white streak at the base 

 and three white spots at the apex — the inner one lunate, the others 

 rounded; the body, legs, and antennas very finely pubescent, and also 

 thickly clothed with long, fine, pallid hairs; the pleura, a spot at the sides 

 of each of the ventral segments, a triangular mark on each side of the 

 pronotum anteriorly, and a spot on both the anterior and posterior sides 

 of each of the femora towards the base, clothed with short silvery pubes- 

 cence. Head with a smooth, faintly impressed median line ; the eyes large 

 and coarsely faceted, reaching the anterior margin of the pronotum; the 

 antennae long and slender, joint 1 stouter, and fully one-half loneer than 

 2, 2-4 subequal in length, 3 and 4 very slender. Pronotum distinctly 

 punctured, rounded at the apex behind; the junction between the an- 

 terior and posterior lobes indicated by four transversely placed punc- 

 tures and a triangular lateral depression. Legs comparatively stout, 

 rather short; the intermediate tarsi with joint 2 much longer than 3; 

 posterior femora and trochanters very minutely denticulate on their 

 inner edge in the male, and faintly so in the female. 



"Male. Sixth ventral segment deeply arcuate-emarginate at the apex. 



"Apterous form. Pronotum abbreviated and subtruncate behind; the 

 elytra sometimes represented by a pair of small white wing-pads; the 

 dorsal surface of the abdomen fuscous, the terminal two or three seg- 

 ments more or less clothed with glistening silvery pubescence. 



"Length, 4-5; breadth (of the pronotum in the winged form), l^io mm. 

 Male and female." 



Van Duzee gives the distribution as North America, Florida and 



Arizona. 



Velia annulipes Champ. 



Champ., Biol. Centrl. Heter., II, p. 142. 



"Apterous form. Male. Moderately elongate, robust, fusiform, the 

 body and antenna obscure ferruginous, the pleura and sterna blackish, 

 the venter fuscous; the legs flavous, annulated with reddish-brown; the 

 coxae and trochanters flavous; the body, legs, and antennae very finely 

 pubescent, and also clothed with longer, fine, pallid hairs; the base of the 

 abdomen above, the pleura, and venter greyish-pruinose; the three termi- 

 nal dorsal segments of the abdomen, the pleura, the sides of the venter, 

 and an indistinct triangular space on each side of the pronotum an- 

 teriorly, with patches of glistening silvery pubescence. Head with a 

 smooth, faintly impressed median line; the eyes large and coarsely 

 faceted, reaching the anterior margin of the pronotum; the antennae 



