An associational study of Illinois sand prairie . ken at the edge of bunch-grass, in ahollow log. The moths emerged later, one about April 20, and theother about Llay 15. The larvae belong to the tjrpe of caterpillarsknown as woolly bears. The species is generally distributed,and is very destructive in certain localities. Iloctua c-nigrum Linn. April 1. Taken in fence row, under boards, in the larval noctrid caterpillars are known as cut-worms, from their under-ground habit of cutting off the stems. They are very character-istic of grassland and cultivated crops. A number of cut-worm
An associational study of Illinois sand prairie . ken at the edge of bunch-grass, in ahollow log. The moths emerged later, one about April 20, and theother about Llay 15. The larvae belong to the tjrpe of caterpillarsknown as woolly bears. The species is generally distributed,and is very destructive in certain localities. Iloctua c-nigrum Linn. April 1. Taken in fence row, under boards, in the larval noctrid caterpillars are known as cut-worms, from their under-ground habit of cutting off the stems. They are very character-istic of grassland and cultivated crops. A number of cut-wormsoccur regularly in the bunch-grass associations; where thesespecies are the same as tlose which were present before thecultivation of the region, is a difficult question. The adultnoctuids were frequently seen flying about in the bunch-grass,though they are very much more active at night. Peltia subgothica Hav^. April 1, 4. This is the commonest species of the genus, and themost abundant cutworm of the bunch-grass. Quite generally 14-3 Mamestra meditata Crt. April 1. ^ound with other cut-worms in fence row under common species of economic importance. Leucania phra£cmitidicola^^-April 1, 8. Under boards with other noctuid larvae and under boardsin the Devils Hole, in bunch-grass. A comnon and generally dis-tributed species. Crambus sp. (indeterminable) April 1. The larva of a crambid moth was taken under a log in afence row, vdth other insects. The Crombids are characteristic grassland species, thelarvae living in grass roots. Hart found a number of individualsof Crambu^ haytiellus Zinck. in the neighborhood of blowouts. Thespecies is described from Hayti. and listed from Texas. Hr. Hart^as unable to find other records. i 144 Order DIPTERA Helobia punctlpennis Ueig. April 1. This small Tipulid was very aMndant alonp a roadsideeast of Havana. On April 1. not Ions before numbers ofsmall Tipulidae v/ere seen near the hedge up and down four
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