444 
Journal of Agricultural Research 
Vol. II, No. 6 
bend dorsad near base. There are numerous stubby, slightly recurved spines on the 
black part, as shown in Plate XL, figs. 4, 5, and 6. The basal hooklets of the penis 
are small, not shown in the illustrations; both are recurved at tip, black and approxi¬ 
mately equal in length; the posterior has a long hair just before the point on the ventral 
side; the anterior is wider on the basal half and has a thumblike, sharp point projecting 
forward, separated from the apical point by a deep incision. The central part of the 
penis is black and highly chitinized dorsally, prolonged in a pair of slender, upcurved 
pieces which extend past the softer parts as shown in Plate XL, fig. 4; the ventral 
soft part consists of two deep irregular folds side by side, without distinct accessory 
structures or apical lobe. 
Legs black; middle tibia on outer front side with two good-sized bristles near the 
middle; hind tibia on the inner median edge with a sparse row of 8 or 10 fine erect hairs 
about as long as the tibia is thick, but not villous in any sense, as in some species of 
Sarcophaga. 
Wings hyaline, no infuscation on small cross vein; angle of fourth vein somewhat 
acute; third vein with a short row of about 7 hairs, first vein bare. Length, 9 to 10 mm. 
Female.—M ore grayish in general color than the male. Head (PI. XL, fig. 7) 
wider than that of the male, the front at narrowest (the vertex) one-third as wide as 
entire head (average of 10 measured with micrometer is 0.339 mm. > the extremes being 
0.291 and 0.360 mm.); two stout pairs of vertical bristles; two strong orbitals; lower fron- 
tals inserted toward the eye margins as in male; palpi much stouter than in male, but 
ending in a point; scutellum without the small apical pair of bristles; abdomen oval, 
somewhat tessellated, the three stripes less distinct; fifth segment red, with a row of 
small bristles at apex from one-half to two-thirds as long as those of the fourth segment; 
no chitinous ovipositor showing in the many specimens examined. Length, 8.5 to 
9.5 mm. 
Type. —Cat. No. 18250, U. S. National Museum. A male specimen from Wellington, 
Kans., Webster No. 2250. 
Material Examined— 173 males, 138 females, Wellington, Kans. (Kelly); 62 
males, 66 females, Elida, N. Mex. (H. E. Smith); 4 males, Gila River, Ariz. (R. N. 
Wilson, Webster No. 10535); 2 males, 7 females, Colorado (Hough Coll.); 1 male, 4 
females, Wawawai, Wash., reared from grasshoppers in the fall of 1913 byM. A. Yothers, 
assistant entomologist of the Washington State Agricultural Experiment Station, emerged 
on September 2 and 13; 3 males, 4 females, Wilson Creek, Wash. (Reeves); 1 male, 
Payson, Utah, August 11, 1911, reared from grasshoppers (C. N. Ainslie); 13 males, 3 
females (Riley’s No. 733P); 1 1 male, 1 female, marked “From Caloptenus differentialis 
Bessey.— Sarcophaga carnaria , 174” (referred to in Riley’s Seventh Missouri Report, 
p. 180; reared at Ames, Iowa); 10 males, 1 female (Riley’s No. 315a); 2 2 males, Riley’s 
No. 722P, 3 the label on the pin of one specimen reading “ From eggs of spretus, Sept. 10, 
’76,” on the other, “Par. on fledged C. spretus , sent by Wm. Cutter, Junction City, 
Kans.—issued Oct. 15, ’76”; 4 males, Dallas, Tex., labeled, “From C. spretus , May 
’77, Boll”; 4 * 3 males, 1 female, Aweme, Manitoba, reared from Melanoplus atlanis 
(N. Criddle), sent by J. D. Tothill. 6 
1 The notes, still preserved in the Bureau of Entomology, give the following data: 
Sarcophaga sarraceniae Riley, bred from eggs of spretus. Brought by Prof. C. V. Riley from Kansas, 
Nov. 16, ’76, 3 larvae in a tin box. One larva put in box 8-72. Also from Manhattan, Kans. Box 8-5. 
Jan. 22, ’77. Two of the flies issued. Spread and marked 733P. Jan. 26, ’77. Two more issued. There 
are 8 chrysalids and one larva living yet. Flies spread and marked 733 p. 
2 The note on this number is as follows: 
Diptera parasite in Caloptenus spretus . May 4, 1880. Received to-day from D. D. Sanderson, Whitney 
P. O., Hill Co., Tex., a box containing parasitized locusts; most of the larvae had issued on the way and a 
few had transformed to puparia; the locusts are perfectly emptied of their contents so that nothing but the 
hard parts are left. The larvae are milk-yellow and when stretched to their fullest length measure nearly 
Minch; thesurface is granulated and from each of these granules arises a very minute bristle of the color of 
the body; at the end on upper side of the abdomen is a deep cavity; at the outer edge, each side of the cavity, 
are 4 fleshy short appendages, the upper pair longest and farthest apart and the lower pair shortest and 
near together; inside the cavity is a pair of oval spiracles, each of which has 3 longitudinal narrow openings; 
the edge of the spiracles and of the openings is light brown; these spiracles are situated in the upper wall of 
the cavity; the anal opening on under [side] is very small and situated between two tubercle-like projections; 
mandibles black; mounted one larva on slide 1-44-3 and a few are placed into box 4-3; remains of tJhe locusts 
are placed into box 2. 
3 The entry under 722P in the notes of the former Division of Entomology relates to anthomyiids reared 
from locust eggs, and could not apply to this second specimen, nor to the first except by misidentification. 
4 Mr. Boll was an agent of the Government in entomological work at that time. 
6 Since preparing this manuscript I have determined specimens of Sarcophaga hunteri reared by Prof. A. L. 
Quaintance from the codling moth, probably from larvae (Quaintance No. 6208). Heretofore it has been 
known exclusively as a grasshopper parasite. This is one of the species upon which Mr. Kelly made his 
observations, and in the light of Prof. Quaintance's record it is evident that these flies do not always 
deposit their larvae while on the wing. Therefore both Mr. Kelly’s and Mr. Smith’s observations (p. 437) 
were correct.—J. M. A. 
