Girault, the Chalcid Genus Hypopteromalus. 
41 
ary parasite on Apanteles congregatus (Say), and quoted the orig¬ 
inal description of Walsh, omitting the first and last paragraphs. 
After Riley (1881), the species was listed separately under 
the names given it, placed in widely separated subfamilies and the 
error has been continued to the present day. 
As I have examined undoubted specimens of both Glyphe 
viridescens Walsh and Pteromalus tabacum Fitch, finding them 
identical and with single tibial spurs on the caudal tibiae, the species 
which we shall now call Hypo pteromalus viridescens (Walsh) 
belongs to the Pteromalidce and can have no relationship to Glyphe 
Walker ( —Gastrancistrus Westwood) or Tridymus Ratzeburg, 
both genera of the Miscognasteridce. 
But very little has been recorded concerning its habits and 
host relations since the time of Fitch; it was bred from micro- 
gaster cocoons by Morgan in Louisiana, (Riley and Howard 1892). 
Garman( 1897) first recorded it as a secondary parasite of Phlege- 
thontius sexta (Johannsen), its host being Apanteles congregatus 
(Say) ; Eintner (1898) as a primary parasite of Apanteles limeni- 
tidis (Riley) on Heliophila unipuncta Haworth ;Dimmock (1898) 
as a parasite of an Apanteles on Smerinthus and from Ampelo- 
phaga; and finally, Howard and Chittenden (1907) record it from 
Microplitis catalpce (Riley) when parasitic on Ceratomia catalpce 
Boisduval; and I have bred it at Baltimore, Md., in 1904, from 
what appeared to be the cocoons of Apanteles smerinthi Riley on 
a willow leaf, as mentioned above; and recently it was reared in 
large numbers from the cocoons of Apanteles congregatus (Say), 
parasitic on the tobacco worm ( Phlegethontius sexta Johannsen), 
State Entomologist of Illinois; the hosts were obtained at Urbana, 
Ill., August 17 and 28, 1908, and the parasites and hyperparasites 
emerged during the following September: 
From one of the host larvae were taken 327 cocoons of the 
Apanteles from which afterward emerged 244 Hypopteromalus 
viridescens, 23 Apanteles congregatus, and 24 Mesochorus. From 
a second host larva were taken 101 cocoons from which emerged 
in due course 12 adult Apanteles, 68 Mesochorus and 2$, $9 of 
viridescens. From a third lot of m cocoons removed from a 
single host larva, there were obtained 7 Apanteles, 73 Mesochorus 
and but a single female of viridescens From a fourth lot of 248 
cocoons emerged 123 Apanteles and 60 viridescens. And from a 
