. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. 10 MISCELLANEOUS KESULTS OF WORK OF BUREAU IX. Suiiiiiiarn of nhtaliicd hi/ reariiii/ parasites from eggs of Pcntatotna Viiiata collected at Barstow, Tex., in 1905. bv other proautc agencies. ".*"^f"=- Wlu'ii colU-cted. August 11-12 September 12 . Number of egg batches. Total Number number of eggs of eggs, hatched. 181 246 Per cent hatched. Number of para- sites emerged. 41 148 Per cent produc- ing para- sites. 0 a 35 35 87 "Representing two batches of 13 and 22 eggs, respect
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. 10 MISCELLANEOUS KESULTS OF WORK OF BUREAU IX. Suiiiiiiarn of nhtaliicd hi/ reariiii/ parasites from eggs of Pcntatotna Viiiata collected at Barstow, Tex., in 1905. bv other proautc agencies. ".*"^f"=- Wlu'ii colU-cted. August 11-12 September 12 . Number of egg batches. Total Number number of eggs of eggs, hatched. 181 246 Per cent hatched. Number of para- sites emerged. 41 148 Per cent produc- ing para- sites. 0 a 35 35 87 "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 egg of the host even after. Fig. 2.— TelenomnsaghmcxuU,-An important egg parasite of I'cntatoina ligata: Adult female and antenna of male. Highly magnified (original). breaking through the shell—and as far as observed it seldom occurs in nature that eggs of the conchuela fail to hatch when not destroyed by outside agencies—it ma}' be concluded that practically all the eggs appearing intact Avhich failed to hatch were destroyed by the parasites. In support of this supposition 10 eggs Avhich 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. sayi from Barstow were all of the same species and identified by Dr. William H. x\.shmead, 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 Telenom^is ashmeadi. An Qgg batch of the conchuela containing hatched and unhatched eggs is shown in Plate I, figure 1, and a parasitized egg batch in Plate I, figure Please note that these image
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