154 Bulletin Wisconsin Natural History Society [Vol. 11, No. 4 
added “Adnot. Conf. Myina Atomos, infra sub. No. 4 ( Cynips 
Atomos Boy. de Fonsc.).” The reference is to pages 432-433 of 
the same work where the description of Myina atomos is given. 
This species is inadequately described and is now referred, I think 
doubtfully, to Anagrus Haliday (De Dalla Torre, 1898, p. 422). 
This arrangement of the species is probably wrong, as it is a grega- 
rious egg-parasite and may therefore be a trichogrammatid. The 
point will be referred to later in a more fitting place. Hartig 
(1838) described Encyrtus embryophagus, which seems to belong to 
Trichogramma, as M. Kourdumoff informs me (in litt ., 1913). 
The British entomologist Walker (1839, a) was the next to give 
the group attention. This was in his Monographia Chalciditum. 
Here, under the name Pteroptrix evanescens , he redescribes what, 
from internal evidence, we shall consider as none other than 
Calleptiles latipennis Haliday, giving Trichogramma evanescens 
Westwood and Calleptiles latipennis Haliday as synonyms. A 
distinct species, captured on windows, in London, was described 
and figured. Although obviously not making it a Trichogramma 
by calling it so, Walker caused almost hopeless confusion later in 
regard to that genus, a confusion which persisted to the present 
day and which succeeded in the elimination of Calleptiles until 
up to the present time. After this mistake of Walker, Tricho- 
gramma evanescens was merged with Calleptiles latipennis in such 
a manner that the names of the two were exchanged for their 
definitions so that although Trichogramma was the name, Callep- 
tiles was the substance and finally the original definition of the 
former was rejected and the conception of the genus thus totally 
reformed. 
In the year following, Westwood’s (1840) introduction to the 
Modern Classification of Insects was published but nothing new 
was given concerning the Trichogrammatidae; the antennae of 
Trichogramma evanescens were figured practically as originally 
(Westwood, 1833) with slight differences in the relative size and 
shape of the six joints. In the Synopsis of the Genera of British 
Insects, appended to volume II, the Hymenoptera are divided into 
families and subfamilies, the genus Trichogramma Westwood 
listed within the subfamily Encyrtides Westwood with Calleptiles 
Haliday as a synonym. A brief diagnostic description of the 
genus is given which does not disagree with the original descrip- 
