76 THE ENTOMOLOGIST. 
passed, for a cocoon which was spun in June, 1912, was found to 
still contain the larva, living and unchanged, in September, 1913. 
The female somewhat resembles Zele testaceator (Curtis), with 
which species it has frequently been confused in collections; in 
Zele, however, the recurrent nervure is very widely rejected, and 
the abdomen does not possess a true petiole, as in Meteorus. 
I have bred it from a cocoon dug up at roots of an oak tree, 
April 14th, 1904, from larva of T’eniocampa miniosa, May 11th, 
1918, and also from larve of T. gracilis, T. pulverulenta, 
T’. stabilis, and Panolis piniperda. 
M. chrysopthalmus (Nees).*—I possess 2 male, beaten from 
birch, May 5th, 1912, which I must refer to this species, as the 
costal cell is slightly longer than the median. Very similar to 
the next, though the females differ in the length of the terebra. 
M. deceptor (Wesm.).t— Generally bred from larve of 
Geometre, a solitary parasite. The cocoon is white, felted, 
fusiform and without loose flocculence; it is found within that of 
its host, which is usually underground, 9} mm. in length (fig. 10). 
I have obtained this parasite from larve of Gonodontis bidentata 
and Semiothisa liturata in May. Single brooded, the winter 
being passed in the larva state within the cocoon. 
In Morley’s collection is a pair bred by Clutten at Burnley, 
from larve of a geometer; in this case the male is testaceous 
and not nigropiceous. 
M. ictericus (Nees).—Marshall considered this to be ‘‘ perhaps 
the commonest British species.’ Although fairly plentiful, there 
are certainly others that are far more so, at any rate, in the 
New Forest. 
It would seem that Curtis, Halliday, and other writers con- 
fused this species with M. pulchricornis, and even Marshall 
cannot have seen the cocoon, for he assumes Curtis’s figure to 
be correct, and describes it as “‘ pensile, yellowish brown, shining, 
and semi-transparent.” Bignell, however, is correct in saying 
that it is ‘‘white and very thin,” and so early as 1884 Bouché t 
described the cocoon as ‘albus chartaceus’’ and not -pensile. 
All that I have seen agree with the descriptions of Bignell and 
Bouché, being cylindrical, not fusiform, and constructed within 
rolled leaves. The transformations of the insect are visible 
through the cocoon (fig. 8). 
Generally bred from larve of Tortrices, a solitary parasite. 
I have obtained it from a cocoon found on oak, June 6th, 1910 
(New Forest), and also from larve of either Sericoris fabricana 
or S. lacunana taken at Burgess Hill, Sussex, May, 1911. In 
Morley’s collection is a female bred by R. Adkin, October 12th, 
1910, from a larva of T'ortrix pronubana, and two males bred by 
* Nees-ab-Esenbech. Hym. Ich. Affinium Mon. vol. i. 1834. 
+ Wesmael, Nouv. Mém. Ac. Brux. 1835. } Naturgesch. d. Ins. 
