BAe lui SES al one te 
THE WHITE COFFEE-LEAF MINER. . 599 
t to be seen, which was much narrower than the pupa-skin. 
From one pupa-skin I hatched one of these ichneumons. I 
found them during all the time (April to June) in which I studied 
the Cemiostoma. In the one hundred and fifty-three leaves men- 
tioned I found eight mines containing these insects. Afterwards 
I obtained two from a box containing leaves. i 
The second ichneumon parasitic on the Cemiostoma coffeellum, 
inhabits the larva while it is still in the mine, as I learned by 
finding an immature example dead within the thin and dried skin 
of a nearly full-grown larva, but I believe that it usually does 
Fig, 130. 
Bracon Parasite of the Coffee Moth. 
not kill its victim until after the Leaf-miner has become a pupa. 
It then completes its work of destruction and cuts a hole in the 
upper side of the cocoon, through which it escapes. 
It belongs to that subfamily of the ichneumons called Braconi- 
de ; consequently I will call it Bracon letifer ; but as far as I have 
examined its characters, it corresponds more nearly to the genus 
Rogas than to any other genus described in Curtis’ “ Britis 
Entomology i 
venation of the wings, nearly related to Exothecus exsertor, a8 
given in Wesmael’s “‘ Monographie des Braconides de Belgique” 
in the Nouvelles Mémoires de l Academie de Bruxelles, xi (1838), 
P- 73, and accompanying plate, fig. 10. 
