64 ENTOMOLOGICAL NEWS [Mar., '36 Lateral spines of abdominal segments 8 and 9 more nearly the same length. Those of segment 9 less in length than the margin of segment 9 (32) 32 Distribution Northern: Ale., Wise.; Hudson's Bay to B. C. and Alaska (33) Distribution Southern: Tropics and Gulf Strip; S. E. States, Tex. ; W. Ind. ; Mex. to Argentine. Erytlirod ipla.v "Micrathyria" 33 Prominent bunches of setae present on the dorstim of abdominal segments 4-9 Erythrodiplax No such arrangement of setae on the abdomen. Leucorrhinia Unknown Genera: [Platycordulia, Williams onia, Pscudoleon, Uracis, Macrodiplax, TauripJiila, Ephidatia, Brechmorhogd]. A Summary of Insects Attracted to Liquid Baits. 1 By S. W. FROST, The Pennsylvania State College. During 1933 and 1934, seventy-five attrahents were used to attract oriental fruit moths in a peach orchard interplanted with apple trees in Adams County, Pennsylvania. Each experi-ment consisted of ten traps. The tests were repeated four times during the summer, covering a period of twenty-one weeks, except in a few cases where materials were not attrac-tive. A mixture of one part refiner's syrup and twenty parts water was placed in all traps, with chemicals added at the rate of one cubic centimeter, or one gram, per trap. Most of the acids were soluble in the baits. Cinnamic, camphoric and picric acids and borneol were dissolved in alcohol before adding them to the, mixture. Methyl cinnamate, piperonal and thymol were dissolved in warm mineral oil and then emulsified. These and all other chemicals were emulsified with 3 grams of number 235 American Cyanamid spreader, 30 cc. of water and 10 grams or 10 cc. of the attrahent. This made sufficient bait for ten traps. A record was kept of insects that visited the baits. Since reports have been published on many of these, the present paper is concerned primarily with miscellaneous insects 1 Publication authorized by the Director of The Pennsylania Agricul-tural Experiment Station, November 6, 1934, as Technical Paper No. 664.
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