GRASSHOPPERS IN GENERAL. 37 



A. Abdomen unicolorous, squamulae yellow, wings strongly yellow at base 

 grisea Meig. 



A A. Abdomen with distinct black markings, squamulae not yellow, wings 

 not strongly yellow at base. B. 



B.- Palpi black. C. 



C. Each abdominal segment with a black dorsal line, and on each side with 

 a narrow, oblique, black spot; these spots often united so that the abdomen pre- 

 sents three black stripes. Front of male one-third the width of the head linc- 

 ata Fall. 



CO.- -First abdominal segment blackish; other segments each with a dorsal 

 black line, and on each side with a large, irregularly shaped black spot. Front 

 of male one-fifth the width of the head ; of female, one-third the width of the 

 he '& a flints Fall. 



JBB. Palpi yellow or brownish yellow. 



|D. Front of male one-fourth as wide as head; third antennal joint less than 

 one and a half times as long as the second; no intra-alar bristle in front of the 

 suture obxolefd Fall. 



I>D. Front of male one-sixth, of female less than a third, as wide as the 

 head; third antennal joint more than twice as long as second, with an intra-alar 

 bristle in front of suture hunieri n. sp. 



Dr. S. W. Williston has kindly examined the Tachinidffi, and will 

 give descriptions in a paper upon Kansas university museum types of 

 Tachinidw in a future number of the Kansas University Quarterly. 



Among these parasitic Diptera, the 

 female fly deposits the eggs, some- 

 times two, upon the back of the 

 grasshopper, frequently when locust's 

 wings are spread in flight. The egg 

 soon hatches, and the larva feed 

 until full-grown upon the locust's 

 vitals. It comes forth as a white 

 maggot; soon its skin turns brown 

 and forms a hard pupa case, from 

 which the flies above mentioned 

 emerge in adult form in from ten 

 days to two weeks (see fig. 6). 



An Asilid fly, Erax cmerascens, was seen pouncing upon the young 

 grasshoppers. 



Locust fungus, Empusa grilli Fres. This disease can be readily 

 detected when present, by the general observer, by the numbers 

 of dead locusts clinging to the tops of the alfalfa, weeds, or grass. 

 On the 21st of July I found this fungus, for the first time this 

 year, at work in one corner of a small alfalfa field three miles east of 

 Syracuse, Hamilton county. The grasshoppers were very abundant 

 upon this piece of ground. I returned to this place two weeks later, 

 hoping to attain some valuable data upon the natural spread of this 



