40 
NE UROPTEROUS INSECTS. 
broad black line on the thighs, and another on the 
tibise, excepting the posterior ones. 
Length one inch and two-fifths. 
This species is smaller than apicalis , and larger 
than either verticalis or hastata, Nob., and is distin- 
guished from them by the elongation of the basal 
cylindric joint of the antennae, being equal in length 
to the second joint. 
4. A. apicalis. Two or three ultimate abdominal 
segments pearlaceous blue above. 
Inhabits U. S. 
Head pale brown ; a black band on the vertex 
between the eyes, and sometimes two black circles; 
thorax pale brown, or bluish pearly, with black 
sutures , wings hyaline, with chiefly quadrangular 
cellules; carpus short, rhomboidal, brown, or dull 
whitish ; nervures black ; abdomen black-green ; 
segments excepting the terminal three, with a dull 
whitish, basal annulus, from which proceeds a slen- 
der line, and on the side, a broader one of the same 
color, neither of which reach the tip of the segment ; 
thiee ultimate segments dull yellowish ; or cerulean 
pearlaceous above and on each side ; pleura and 
pectus pale yellowish; feet pale yellow; thighs 
lineated with brown ; tarsi with black incisures and 
extremity. 
Length one inch and a half. 
A very common species, remarkable, when recent, 
by the color of the tip of the abdomen and of the 
thorax, which arrests the attention when the insect 
is on the wing. 
