lit 
[July 
/ 
pubescence, on the middle of the disk it is black; the wings fuscous, 
darkest towards their base; the legs clothed with short dark fuscous 
pubescence. Abdomen elongate, narrowed towards the apex; the two 
basal segments clothed with short fulvo-ochraceous, and the apical seg¬ 
ments with short black pubescence.” 
Female. Not seen. 
One specimen. New Wied, Texas. (Coll. Smith. Inst.) 
4. A. contiguus n. sp. 
Male. Head black, yellowish on the vertex. Thorax lemon-yellow, 
more or less black between the wings. Wings fusco-hyaline. Legs 
black, tarsi pale, inner side of the basal joint rufous. Abdomen with 
the first two segments above lemon-yellow; rest black. Beneath black. 
Length 7—8 lines. 
Variety. The anterior portion of the second abdominal segment 
above mixed with black, especially on the sides. 
Female. Not seen. 
Four specimens. Conn., Penn., Del. (Coll. E. Norton, and Ent. 
Soc. Philad.) 
This species closely resembles Bomhus vagans Smith, and probably 
parasitic on that species. 
6. A. citriims. 
Apathus citrinus Smith, Brit. Mus. Cat. Hym. ii. 385. 
Male. Head black, slightly mixed with yellowish on the vertex. 
Thorax pale lemon or greyish-yellow above and on the sides, more or 
less mixed with black between the wings. Wings subhyaline, stained 
with fuscous along the nervures. Legs black, tarsi pale, inner side of 
the basal joint golden in certain lights. Abdomen with the first three 
segments above pale lemon or greyish-yellow; remaining segments 
black. Beneath black. Length about 7 lines. 
VaHety? The yellowish hairs of the body much deeper in color, 
the wings darker, the fourth segment of the abdomen above mixed with 
yellowish and the hairs of the tarsi reddish. Length 6 lines. 
Female. Not seen. 
Six specimens. Mass., Conn., N. Y., Ill. (Coll. E. Norton, and 
Ent. Soc. Phila.) 
The variety may be a distinct species, but there being only a single 
