. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. 10 MISCP:LLANE0US results of work of bureau IX. Siinunar!/ of i-esiiUs ohtained by rearing parasUcs from eggs of I'liifatonia ligata collected at Barstow, Tex., in, 1905. Winn collec;ted. Number of egg batches. Total number of eggs. Number of eggs hatched. Per cent hatched. Number of para- sites emerged. Per cent produc- ing para- sites. Number of eggs destroyed by other agencies. Percent falling to produce nymphs. August 11-12 September 12 6 13 181 246 35 20 19 41 8 148 22 54 0 "35 81 92 Total 19 427 ' .'if
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. 10 MISCP:LLANE0US results of work of bureau IX. Siinunar!/ of i-esiiUs ohtained by rearing parasUcs from eggs of I'liifatonia ligata collected at Barstow, Tex., in, 1905. Winn collec;ted. Number of egg batches. Total number of eggs. Number of eggs hatched. Per cent hatched. Number of para- sites emerged. Per cent produc- ing para- sites. Number of eggs destroyed by other agencies. Percent falling to produce nymphs. August 11-12 September 12 6 13 181 246 35 20 19 41 8 148 22 54 0 "35 81 92 Total 19 427 ' .'ift 13 189 44 35 87 a Representing two batches of 13 and 22 eggs, respectively. Presumably destroyed by ants, the broken eggshells remaining. Shrinking of the eggs, indicating infertility, occurred in no case among the eggs inchided above. From the fact that adult para- sites frequently fail to emerge from the vgg of the host even after. Fi(— Tilrnomttsaslnnradi, tin important egg parasite of Peiilaloiiiii lii/atn: Adult femaleand antenna of male. Highly magnified (original). breaking through the shell—and as far as observed it seldom occurs in nature that eggs of the conchnela fail to hatch when not destroved by outside agencies—-it may be concluded that practically all the eggs appearing intact which failed to hatch were destroyed by the parasites. In support of this supposition 10 eggs which neither hatched nor from which live parasites emerged, selected at random from the 19 batches above mentioned, were opened and each Avas found to contain a dead adult parasite. The specimens bred from the eggs of P. ligata and also of P. myi from Barstow were all of the same species and identified by Dr. William H. Ashmead, of the U. S. National Museum, as a new species of the genus Telenomus (fig. 2). The writer will describe the species under the name Telenomus ashmeadi. An egg batch of the conchnela containing hatched and unhatched eggs is shown in Plate I, figure 1, and a par
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