1878.] 107 [Hagen. 
earliest record in the season, of its occurrence here, and the only pos- 
itive one of its presence in that part of the State. It was a solitary 
specimen of its kind and had for its only companion a Summer 
Yellow-leg. 
Mocking-bird, Mimus polyglottus, a young & shot in Nantucket, 
Oct. 8, 1878. It was evidently a wild and not an escaped bird, and 
is one of the very few recorded instances of the capture of this species 
in Massachusetts. 
Hydrochelidon nigra, Short-tailed Tern. Shot at Hummock 
Pond, Nantucket, Aug. 8, 1877. It was alone and its flight was not 
unlike that of the common Tern. 
The thanks of the Society were voted for these gifts also. 
Section of Entomology. November 27, 1878. 
Mr. Edward Burgess in the chair. Eleven persons present. 
The following paper was read : 
On LAaRV oF INsEcTs DiscHARGED THROUGH THE URETHRA. 
By Dr. H. A. HAGEN. 
The larva of an insect which had been discharged through the 
uretha by a country boy, was sent by Dr. Cutler of Waltham, Mass., 
to Mr. S. Henshaw, and kindly communicated to me for investigation. 
The larva is somewhat squeezed and flattened, but otherwise in good 
condition and belongs to the Dipterous genus Homalomyia. In com- 
paring the larva with the larve of Diptera in the biological collection 
of the Museum in Cambridge (which contains now 380 species of 
Diptera, more or less fully illustrated) I found two lots of the same 
kind. One is labeled from putrifying fish, the other, as found ina 
bottle containing rotten alcoholic fishes. In looking through the 
American literature I found one paper of the late B.D. Walsh, 
“larve in the human bowels” (Amer. Entomol., 1, 137) seem- 
ing to treat of similar larvee. The description and the figure make it 
nearly doubtless that the larva from Waltham is identical with the 
Homalomyia Wilsont Walsh. There is only one difference : the 
larva of H. Wilsoni has on the third segment on each side only one fil- 
ament, while mine has on each side a pair of filaments just as in the 
following segments. But as all larve of Homalomyia, as far as I know, 
