nes curved ; itiitiad aiidute teeed, cole a 
blad but not very sharply pointed ; at apex and sides with a 
‘fringe of hairs; ventral segments beyond first with some large 
T ss among the close fine ones. Black ; spot on base of mandibles, 
insve irregular spots on clypeus, inner orbits for two-thirds of 
clypeus, narrow line on lower two third of posterior orbits, 
‘on pronotum, tubercles, tegulae, a line above, spot on each 
line on postscutellum, angles of metathorax, legs below 
je middle of femora, broad bands on dorsal abdominal segments 
ally narrowly interrupted in middle, small spot on each side of 
cree in venesiongoee 95. paltenes 
+ the color of the legs is bright yellow, the other mark- 
re more or less greenish ; stripes of genitalia reddish-yellow ; wings 
hyaline, nervures brown ; head and thorax with white pubes- 
=< on the head the longest ; in one wing the second tr. cu. is 
, ‘J 
_ _ Hab.—Pecos, New Mexico, Sept. 2nd, at fis. of Melilotus 
‘Ck ). 
his species is close to B. ventralis Say, but may be known 
m it by the characters given in the above table, and in 
— first joint of anterior tarsi emarginate at base 
BEMBEX Fabr. 
Males. 
of sixth ventral segment bifid atapex. . . . . amoena Hdl. 
. e of sixth ventral segment simple atapex. .. . . 2... I. 
 -& Dors ICES Siig ig 6 ote -s, © ein 9riele See sayi Cress. 
ig ___ Dorsulum not spotted, or at least not notably so . \a > nes 2. 
“s a Markings of abdomen bright yellow; femora yellow, except base 
= oO sometimes; larger (20mm.). ..... . nubilipennis Cress. 
. _ Markings of abdomen greenish-white femora largely black ; smaller, 
spinolae St. F 
va can. Females. esa 
with a good deal of yellow; larger... . . .. row * 
Met black, or with a little yellow; smaller... ....... 2. 
~  & Wingsatbaseclouded ............. nubilipennis Cress. 
ESE ee sayi Cress. 
€é 1, Pleura black, without spots ; bands of abdomen continuous. 
a spinolae St. Farg. 
ae EE Rr ee ea AT palin 3. 
3 Bands of abdomen separated ; mesopleura with two spots. 
re 
ng Bands of abdomen continuous ; mesopleura with one large spot . 
