Archive image from page 406 of American spiders and their spinning. American spiders and their spinning work. A natural history of the orbweaving spiders of the United States, with special regard to their industry and habits CUbiodiversity1121211-9810 Year: 1889 ( Fig. 333. Fig. 334. Fig. 333. Magnified cell of parasitic hymenopter, probably Aco- loides sa'itidis. Fio. 334. Saltigrade cocoon, with parasitic cells enclosed, somewhat magnified. The fly on the edge is about natural size. October, 1884, Mr. F. M. Webster sent me from Oxford, Indiana, a parasitized cecoon, evidently of some Saltig
Archive image from page 406 of American spiders and their spinning. American spiders and their spinning work. A natural history of the orbweaving spiders of the United States, with special regard to their industry and habits CUbiodiversity1121211-9810 Year: 1889 ( Fig. 333. Fig. 334. Fig. 333. Magnified cell of parasitic hymenopter, probably Aco- loides sa'itidis. Fio. 334. Saltigrade cocoon, with parasitic cells enclosed, somewhat magnified. The fly on the edge is about natural size. October, 1884, Mr. F. M. Webster sent me from Oxford, Indiana, a parasitized cecoon, evidently of some Saltigrade species, which appeared to be that of Phidippus morsitans. The cocoon contained within the outer flossy case about eighty cells or pupa cases and a num- ber of mature black hymenopterous insects about one- eighth inch long. (Fig. 334.) The cells were ovoid, gray, blackish at the closed end, probably from excre- tions from the enclosed lar- vae. One end was cut open, showing where the insects had escaped. (Fig. 333.) With the exception of a few hard, dry, yellowish brown examples, all the eggs of the spiders had disappeared. The specimens were sent to Mr. L. 0. Howard, who thought them to be Proctotrupids, belonging to the subfamily Scelionina, and seeming to form an entirely new genus. This gentleman has lately published » a descrii)tion of a hymenopterous parasite on spiders sent to him by Mr. L. Bruner, of Lincoln, Nebraska, which was collected from the eggs of a Saltigrade, Saitis pulex. The eggs of this spider are a little more than a millimetre in circumference, and each egg harbors but one parasite, which issues by splitting the egg case open, rather than by gnawing a hole. This insect belongs to the same family and subfamily and is prob- ably the same species as that col- lected by Mr. Webster. Mr. How- ~~--N;sBSffl|,< \ it,J8 ''d has named it Acoloides saitidis, V 'wSf- f\ and a copy of the drawing of the insect is given at Fig. 335. In the same connection Mr
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