Sept. 21, 1914 
New Sarcophagid Parasite of Grasshoppers 
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from the Sarcophaga larvae that issued from grasshoppers collected after 
death with the adults of Sarcophaga issuing from the living grass¬ 
hoppers which died in confinement revealed the fact that they were the 
same species. The indoor and outdoor rearings were indicative of their 
natural hibernating habits, and subsequent rearings from larvae from the 
fields in the spring gave proof of the habit. 
SEASONAL HISTORY AND NUMBER OF GENERATIONS 
Observations on the habits of species of Sarcophaga in their rela¬ 
tion to grasshoppers were continued in 1913 in the vicinity of Well¬ 
ington, Kans., beginning with the issuance of the first adults in late 
April and early May, which was simultaneous with the entering of the 
second and third instars by the earliest hatched Melanoplus differeniialis 
and M. bivittatus . At the same time Chortophaga viridifasciata DeGeer, 
a species of grasshopper that hibernates in the nymphal stages, was 
becoming plentiful in both the adult and nearly grown nymphal forms. 
The four species, Sarcophaga kellyi , 5 . cimbicis Towns., 5 . hunteri Hough, 
and 5 . sarraceniae Riley, were observed depositing on adults and nymphs 
of the last species and on the larger nymphs of the other two species, which, 
however, were not very common. Adults of these four species, which con¬ 
stituted a distinct second generation, began issuing sparingly from these 
grasshoppers by the first week of June and did not become very much 
in evidence until about the first week of July, and from this time until 
November no distinction could be made between generations on account 
of overlapping. However, judging from the rapidity of their develop¬ 
ment, there were probably three or four additional generations, making 
about five or six for the season. 
EFFECT OF POISON ON SARCOPHAGID MAGGOTS 
About 200 living grasshoppers that had eaten poisoned bran were col¬ 
lected on October 3, 1913, and by the 17th all had died. Of these grass¬ 
hoppers 117 contained dead Sarcophaga larvae and no live ones, as 
many as 9 larvae being found in 1 individual. These maggots, with the 
exception of one which was nearly full grown, were rather small. The 
use of the poisoned bran in this instance was very effective, for in addi¬ 
tion to clearing the field of the grasshoppers it killed the parasites. 
Poisoned bran was also very effective in the vicinity of Kinsley, Kans. 
OUTBREAKS OF GRASSHOPPERS REDUCED OR CONTROLLED BY SAR- 
COPHAGIDS 
The outbreak of Dissosteira longipennis in eastern New Mexico, pre¬ 
viously mentioned, was considerably reduced by the attack of Sar¬ 
cophaga larvae, according to notes made by Mr. H. B. Smith on June 
24, 1913, in which he says: 
Found thousands of grasshoppers that had been killed by Sarcophaga larvae lying 
dead on the prairie. In some places as many as 15 per square foot were found in 
this condition. 
While in the majority of cases the maggots were still feeding within the bodies 
of their victims, many full-grown maggots had issued and could be found buried % 
to 2 inches below the surface of the soil. 
The investigations by Mr. Smith ended about the 1st of July, and no 
data as to the results of this parasitism were collected later. Mr. P. R. 
