to our house fly, but larger, and having a more hairy body, destroys the p i 

 feet insect of the Mantis, or rear-horse, as many as nine having come out 

 of the body of one Mantis Carolina, (PL II, Figs. 1, 2, 3-.) An Iclineonnm- 

 tly destroys the eggs of katydids. Crickets, grasshoppers and katy«&3s 

 are infested with the Filaria, Gregarina ami Gbrdins, hair-snakes, or worrap, 

 which live in their bodies A small scarlet-red mite-. Astoma locustazam 

 (Walsh) or Ocypete of Harris is frequently found clustered- on the- body sir 

 under the wings of grasshoppers, and it is said that when numerous,, tn*'y 

 eventually kill the insect they infest. In late summer and autumn gcead 

 numbers of dead and dried-up grasshoppers are frequently observed in Ma- 

 ryland and Virginia, clinging fast to the- tops of the highest stalks o£ grass 

 or weeds. These probably have been destroyed by some animal or vegetaMe 

 parasite, at present unknown. 



Many of the so-called dirt-daubers, mud and sand wasps, provision 

 their nests with young grasshoppers to serve as food for their larva, ai 1 

 there is no doubt that when more attention is given to the- habits of oxar 

 Orthoptera, many other parasites especially among the Ichneumon-flies r ChaI- 

 cididea, &c., will be discovered and made known to the public. 



