Fifth report of the United States Entomological Commission, being a revised and enlarged edition of Bulletin no7, on insects injurious to forest and shade trees . , page 1883. In 1874 I found a larva in the third stage being devoured by Eulo-phus larvse, some of which issued and formed their pupse under my eye,the perfect flies, an undescribed species, issuing on July 13, of thatyear. I have reared quite abundantly from the chrysailis of this speciesthe large Clialcis fiavipes Fabr. and an uudescrib d Tachinid, while oneof my old correspondents, Mr. George W. Letterman, of Alleutown,Missouri,
Fifth report of the United States Entomological Commission, being a revised and enlarged edition of Bulletin no7, on insects injurious to forest and shade trees . , page 1883. In 1874 I found a larva in the third stage being devoured by Eulo-phus larvse, some of which issued and formed their pupse under my eye,the perfect flies, an undescribed species, issuing on July 13, of thatyear. I have reared quite abundantly from the chrysailis of this speciesthe large Clialcis fiavipes Fabr. and an uudescrib d Tachinid, while oneof my old correspondents, Mr. George W. Letterman, of Alleutown,Missouri, once brought me specimens of Fodisus spinosus which he hadfound piercing the larva and sucking its juices. The egg-parasite and the other parasites reared from Aptura clytonand presently referred to will doubtless be found preying on A, celtisalso. 604 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 2. The Tawny clyton Bd. LeC. This butterfly is a larger and more showy one than the Eyed Empe-ror and it extends farther north and east, Its habits are similar and Ihave frequently found the larvse of both species feeding together on thesame Fig. 198.—Apatura clyton: a, eggs; b, larva; c, cbrysaiis; d,imago, male, the dotted line showing form of female—all naturalsize. After Riley. It is less common than A. celtis and Boisduval gives Prumis as thefood-plantof the species; but no one since has recorded it as occurringon trees of that genus, and, as I have already recorded, young larvserefused to feed on Plum leaves and died rather than eat them. The eggs of this species are similar to those of celtis, and differ mainlyin being narrower on the crown, but they are invariably deposited iudense patches of from 300 to 500, and two, or more often three, tiersdeep. The structural differences between the young larvae of the two speciesare fully set forth in the article alluded to. The larvfe are more or less gregarious up to the third molt, afterwhich they scatter. T
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