62 Bulletin of the Brooklyn Entomological Society, Voi. XIV 
Modified Segments.—The eighth tergite is slightly emarginate 
near the apical angle. The stylet is about twice as long as thick 
at the base. The receptaculum seminis is constricted at the junc- 
ture of the appendix and the body. The appendix is slightly en- 
larged near the juncture and then becomes cylindrical. The 
ventral edge of the body is evenly curved while the dorsal edge is 
sinuate. 
Length—Z 2.28 mm. 92 2.71 mm. 
Locality —Mouth of Bear River, Utah, off either Steganopus 
tricolor or Spatula clypeata, 22 July, 1916, Alexander Wetmore 
collector. The specimens were taken from a container in which 
both of the above named birds were imprisoned. Evidence points 
to Steganopus as the true host. 
TRAPPING FOR LARVA OF APANTESIS. 
By Cuas. RumMMEL, Newark, N. J. 
On a trip to Lyons Farm, on November 11, 1918, to collect 
larve of Bellura obliqua, a sufficient number were secured by 
cutting off about 60 infested sections of cat-tail. Plants bearing 
the matured seed stalk or “cat-tail,” it has been my experience, 
are not infested by B. obliqua. 
With time still to spare search was then made for Apantesis 
larve. On a previous visit when a larva of A. nats was found in 
a swampy, wet place, an unusual environment for this species; 
traps (old paper and other rubbish found near at hand), had 
been placed on the border of this swamp. Examination of these 
traps resulted in three larve of A. nats and four very small ones 
of a kind not recognized. After adding a number of traps search 
was continued on the way back toward Newark. About an hour 
later in an open field six more half-grown larve of A. nais and 
one full grown of A. arge were found. Here again a number of 
traps were laid, this time old sheet iron being the material avail- 
able. If the material used for traps is light, such as paper or 
pasteboard, it should be weighted down so that the wind cannot 
blow it away. It is best to crumple paper and secure it between 
