An associational study of Illinois sand prairie . - con-sequently coccinellids v/ould be also rare. They were more abundantin the colder weather, while hibernating. There is also the possi-bility that plant lice are naturally scarce in the tough grasses ofthe bunch-grass association, or that they are attracted to the jui-cier cultivated plants of the sandy loam flats. In the summer thespecies was not infrequent in the growth of Cassia in the blov/ sandof the lee slope of blowouts. Hippodamia glacialis Fab. April 1. Very much less frequent than the other species. It is probablethat the species
An associational study of Illinois sand prairie . - con-sequently coccinellids v/ould be also rare. They were more abundantin the colder weather, while hibernating. There is also the possi-bility that plant lice are naturally scarce in the tough grasses ofthe bunch-grass association, or that they are attracted to the jui-cier cultivated plants of the sandy loam flats. In the summer thespecies was not infrequent in the growth of Cassia in the blov/ sandof the lee slope of blowouts. Hippodamia glacialis Fab. April 1. Very much less frequent than the other species. It is probablethat the species is to some extent typical of dry or sandy localities Coccinella novem-notata Herbst. July 19, April 1, 4, 5, 7. Commonest species of the family, especially in cultivated is usually found v/ith Hippodamia parenthesis. In the bunch-grassit was common on the Cassia growth on lee slopes of blowouts. Onewas seen being eaten by a reduviid, Zelus socius. Much more abun-dantly found in spring, hibernating under boards or between lobes Adalla bipunotata Linn. July 26. Taken in street of Havana - escaped. The species is not commonin this state, having been introduced by conimerce. It is increasin;?;in numbers, apparently, Chilocorus bivulneralis LIuls. June 25. Hibernates in the adult stage. Not an abundant species. Takenon grass plant at the Devils Hole. Languria bicolor Fab. June 28, July 29. An elongate shining beetle of the family Erotylidae. Occurs onthe stems and leaves of Caccalia atriplicifolia L., in the stems ofwhich the larvae live. Derraestes caninus Germ. April 4. A species of the family Dermestidae. Like all the members ofits family, this beetle is scavenger. The one specimen was foundunder a log, hibernating in the bunch-grass. Dermestes vulpinus Fab. April 5. Very similar in size and appearance to the preceding under log, hibernating. Only one record. Hister biplagiatus Lec. June 28, April 1, 4, 7, 8. The Histeridae are small convex beetl
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