221 



o-rown fei/iale, contaiiuMl spores and mycelia of various fungi, together 

 with some other vegetation, fragments of plant-lice, and traces of other 

 insects. 



No. 11. A sj)ecimen from Milan, in Rock Island county, obtained 

 August 13, had fed on ]ilant-lice, and also contained fragments of cellular 

 vegetation, with spiral cells and large scalariform ducts. 



Four specimens of this species taken in August had fed mainly on 

 the ])ollen of various plants. Fungi were found in all, and were the entire 

 food of a single ^specimen an<l th(» greater part in another. Miscella- 

 n(M)us vegetable tissues, about equally divided between the leaves and 

 the fjoi'al organs of grasses, predominated in one case and were present 

 ill two otliei-s. In one sjiccimen was a jiiece of vegetable tissue ])ene- 

 t rated by threads of the mycelium of a sa}jrophvtic fungus. Insect 

 remains were found in three specimens, but in very small amounts. 



(Ka in thus nign'cornis Walk. 



Se\'en s])eciniens were dissected by Mr. Titus with the following 

 results: 



No. 1. An adult female from Milan, Rock Island county, obtained 

 August F), had fed mostly on vegetation, the fragments of which con- 

 tained s])iral ducts. The structure suggested the leaves of a grami- 

 naceous plant, j)ossibly corn. 



No. 2. Another specimen, an adult female, collectetl from a milk- 

 weed in the field at Champaign August 27, had eaten little else than 

 the anthers of grass. 



No. 3. A third specimen of this species, taken at the same time 

 and ])lace as the preceding, had fed on pollen of a graminaceous plant, 

 and contained also some vegetable fragments wdth spiral cells. 



No. 4. In a third specimen of the same origin as the preceding, 

 only poll(Mi grains, some spherical and others triangular, were found. 



No. 5. An adult male specimen from Champaign county, taken 

 August 28, contained only fungus spores and mycelia of various kinds. 



No. G. Origin and food identical with those of No. 5. 



No. 7. An adult female taken on corn at Neoga September -27. 

 Many Altoiiaria spores, and also large pollen grains together with 

 fragments of anther tissue. 



Eighteen specimens, taken from five localities in cejitral and southern 

 Illinois at various dates from August 10 to October 10, were studied by 

 Mr. Mills. In but oiu> of these was there a preponderance of insect 

 food, though minor percentages were found in ten others. The greater 

 part of this consisted of plant-lice, but occasional fragments were noticed 

 of insects provided with a heavy chitinous crust. Fragments of vegeta- 

 tion predonunated in seventeen cases, and made nearly half the food 

 in the eighteenth. Fungi were noticed in but two specimens, and in 



