9 
Described from 1? specimen. This specimen was bred, December 29, 
1883, from the puparium of a Tachinid, the larva of which was found 
with the eggs of Caloptenus atlanis Riley, at Boscawen, N. H., October 
7,1883. The Tachinid larva showed no signs of being infested, and trans- 
formed to an apparently healthy pupa. [C. V. R. Coll.| 
Genus HALTICHELLA Spinola. 
Head triangular; eyeslarge. Antenne inserted contiguously, near the mouth; scape 
long, reaching to the ocelli. Anterior wings with a short marginal vein, very short 
stigmal and still shorter post-marginal. Abdomen ovate, second segment somewhat 
flattened above. Posterior femora smooth below, or obtusely bidentate. Posterior 
tibiz with two spurs, middle with one. 
12. (1) Haltichella americana, n. sp. 
Female.—Length, 4™™. Head and thorax densely and coarsely punctured, more 
closely on occiput. Color black, with whitish pile. Front cox, and femora black, 
tibix ferruginons at either end, tarsi ferruginous; middle legs the same; hind legs 
emtirely black, tarsi ferruginous. Wings very slightly dusky under the stigma. 
Described from 2 2’s, both collected at Washington, D.C. [C. V. R. 
Coll.] 
Approaches very closely H. armata (Panz.) of Europe, but differs in 
the completely black antenne and the nearly clear wings. 
Sub family ENCYRTIN AG. 
The eight genera of this subfamily, which are represented in the collee- 
tions, may be separated as follows, the females alone being considered : 
A. Scutellum with a tuft of stiff hairs at tip...---................---- CHILONEURUS. 
B. Scutellum with no such tuft. 
a. Head with very deep, large, and regular round impressions.... BOTHRIOTHORAX. 
b. Head with no such sculpture. 
a. Head thickly and finely punctate, antennal club often obliquely truncate. 
COPIDOSOMA- 
b. Head nearly smooth, antennal club always strongly obliquely truncate. 
HOMALOTYLUS. 
ce. Antennal club not obliquely truncate. 
aap Mesonotumylusterlesso-ts- cnn 32 Sb ite oo ote melee wis br emie wc Se aiainys APHYCUS. 
bb. Mesonotum shining with a metallic luster. 
aa, Antenne extremely long and thin; no marginal vein........PSILOPHRYS. 
bb. Antennzx very long and thin; marginal vein longer than stigina. 
LEPTOMASTIX. 
Ceqantenn noviepecially long... 6. sac nse seu sc-e ces sicd setae ENCYRTUS. 
In the Annual Report for 1880 I described twelve species of this sub- 
family, all of which were parasitic upon bark-lice. I here describe 
twenty-three additional species, but of these only eight are bark-louse 
parasites, three are parasitic upon Psyllid, five upon Lepidopterous 
larve, one upon a Coleopterous larva, and two upon Dipterous larve, 
while the hosts of four are unknown. Of these four the strong proba- 
bilities are that one is parasitic upon some Dipterous larva, one upon a 
Lepidopterous, and the other two upon bark-lice. 
