30 Mr. F. Smith’s Descriptions of 
legs with silvery hair at the base and apex of the tibie at the 
joints; posterior tibize annulated with yellow; all the tarsi black. 
Male.—Face yellow, with a black line running from the base 
of the mandibles to the base of the antenna, and a transverse one 
near the top of the angle formed. Antenne black, slightly ful- 
vous beneath. Thorax black; anterior tibize with a rufous line in 
front; posterior legs annulated with pale yellow; all the tarsi 
are pale at their base. Sometimes a pale spot on the tubercles 
and tegule. 
Length, 3 lin. to 34. 
Sp. 2. Hyleus annularis. 
Aculeate ; black; head nearly round; a fulvous spot below the 
base of the antennz, sometimes obsolete. Antenne slightly ful- 
vous beneath. Thorax, with the tubercles, a spot on the tegule, 
sometimes on the collar, yellow; base of all the tibize yellow. 
Wings slightly coloured. Abdomen with a few whitish hairs on 
each side of the first segment, all the margins piceous. 
Male.—Face yellow. Antennz fulvous beneath, rather ob- 
scurely so; a yellow spot on the collar; all the tarsi pale at their 
base; anterior tibize with a rufous stain in front, intermediate and 
posterior pairs annulated with pale yellow. 
Length, 2 to 3 lines. 
Sp. 3. Hyleus signatus. 
Aculeate; black. Antenne fulvous beneath; scape black; face 
with an obscure fulvous line close to the eyes. Thorax witha 
white spot on the tegule and tubercles. Wings hyaline; anterior 
tibize with a rufous line in front; all the tibize fulvous at their ex- 
treme base. Abdomen very finely punctured ; a fringe of white 
hair on the lateral margins of the first segment; the ventral also 
covered with white hairs, which are thinly scattered along the 
margins of all the segments. 
Male.—Face pale yellow or white. Antennz fulvous beneath. 
Thorax, anterior legs, with their tibiz, rufous in front; the pos- 
terior plantee white at their base. Abdomen covered with a fine 
silvery pile. 
Length, 3 to 35 lines. 
N.B.—The males of this species I have frequently found to be 
larger than the females. 
