. Birds of a Maryland farm : a local study of economic ornithology . 37 birds collected. Throughout the entire time of observationinsects and their allies, including a small percentage of spiders andother invertebrate-, amounted to percent of the total volume offood. They are distributed as follow-: Proportion of insects <ni<{ their allies in food of birds examined. ■•■lit. White ants Bugs May-flies Ants and other I [ymenoptera (Caterpillars, with a few adult Lepidoptera < rrasshoppera and a few crickets Beetles LS Miscellaneous insects Spiders
. Birds of a Maryland farm : a local study of economic ornithology . 37 birds collected. Throughout the entire time of observationinsects and their allies, including a small percentage of spiders andother invertebrate-, amounted to percent of the total volume offood. They are distributed as follow-: Proportion of insects <ni<{ their allies in food of birds examined. ■•■lit. White ants Bugs May-flies Ants and other I [ymenoptera (Caterpillars, with a few adult Lepidoptera < rrasshoppera and a few crickets Beetles LS Miscellaneous insects Spiders 4. 4s Miscellaneous invertebrates, mainly Crustacea, snail-, and myria-podfl B3 T< .tal The bugs consisted both of Heteroptera and Homoptera. TheHeteroptera included such form- a- Podisus, Euschistus^ Trichopepla8emivittata, Sinea diadema, Thyanta custator, Hymenarcys n-1Metapodivs femvratus, Nesara hilaris, Corizus, Ooriscus^ < fimdama,Pri<midv&) Alydus pilo&ulus, and Alydus eurinits. The Homoptera 42 BIRDS F A MARYLAND Fig. 14.—Cutworm and moth (after Howard:loaned by Division of Entomology). included leaf-hoppers, scale insects, and an occasional plant-louse andgiant water-bug. Of the Hymenoptera the insignificant proportion percent consisted of parasitic wasps, while the remainder wasalmost entirely ants. The Lepidoptera were very nearly all caterpil-lars, though moths were occasionally eaten. The caterpillars com-prised the smooth forms, oftenest cutworms (fig. 14) and othersof the family Noctuidse, together with some Greometridse and occa-sionally an arctiid or a grasshoppers were1 long-horned grasshoppers (Locustidse)and short-horned grasshoppers(Acrididse), the latter consisting ofsuch forms a^ Hippiscm, Mdano-j>!,is atlanis, Melanoplus femur-rubrum, and Dissostetra Carolina,the former largely of such meadowgrasshoppers as Xiphidium andScudderia, with an occasionalkatydid. Beetles formed twice a^large an element of f
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectbirdsma, bookyear1902
