1925 ] A Japanese Dohrniphora Bred from Dead Snails 313 
A JAPANESE DOHRNIPHQRA BRED FROM DEAD 
SNAILS (DIPTERA: PHORID.E) 
By Charles T. Brues. 
Bussey Institution, Harvard University. 
Several species of the genus Dohrniphora in various parts 
of the world regularly develop in the bodies of dead insects and 
molluscs. These forms are apparently never parasitic as their 
eggs are not deposited until after the death of the host. 
In 1914 Schmitz described 1 an African species, D. bequcerti 
which was obtained in East Africa by Dr. Joseph Bequaert who 
found it developing in the body of a decaying snail. Schmitz 
believes however that the species is probably not restricted to a 
shell-fish diet as he states later (1919, Biolog. Centralbl., vol. 37, 
p. 40) that larvae of the same form have been observed in soured 
milk. 
Prof. T. D. A. Cockerell has just sent me a male and female 
of a species of Dohrniphora which I cannot distinguish from D. 
bequcerti on the basis of Schmitz’s description. These are from 
Hongo, Wakasa, Japan and were bred by Mr. T. Okano from 
the bodies of dead snails of the genus Euhadra. Whether the 
Japanese examples are really cospecific with the African form 
mentioned above is perhaps doubtful, but such species are readily 
spread by commerce and such a wide distribution would be by 
no means surprising. 
NOTES ON THE ANT FAUNA OF OAK GALLS IN THE 
WOODS HOLE REGION. 
By A. H. Sturtevant. 
Columbia University, New York City. 
During August and September, 1925, several hundred “oak 
apples” (galls of Cynips ( Amphibolips ) confluens Harris or a 
similar species) were examined from the region near Woods Hole, 
Massachusetts. These galls were in all cases picked up from the 
x Jaarb. Natuurh. Genootsch. Limburg, p. 105. 
