Proceedings of the United States National Museum . on. The following are figured in the literature: Pristomerus vulnerator(Panzer) (Goidanich, 1931; Rosenberg, 1934), Zaleptopygus flavo-orhitalis (Cameron) (Bradley and Burgess, 1934), Cremastus interruptorGravenhorst (Thorpe, 1930; Beu-ne, 1941). Tribe TersilocLini Figure 59 This tribe, the larvae of which are endoparasites, resembles theCremastini and many Campoplegini in essential structure, but themandible is distinctive with its conical shape and small tooth at theapex. The head sclerites are slender and lightly sclerotized. As inmost Crem
Proceedings of the United States National Museum . on. The following are figured in the literature: Pristomerus vulnerator(Panzer) (Goidanich, 1931; Rosenberg, 1934), Zaleptopygus flavo-orhitalis (Cameron) (Bradley and Burgess, 1934), Cremastus interruptorGravenhorst (Thorpe, 1930; Beu-ne, 1941). Tribe TersilocLini Figure 59 This tribe, the larvae of which are endoparasites, resembles theCremastini and many Campoplegini in essential structure, but themandible is distinctive with its conical shape and small tooth at theapex. The head sclerites are slender and lightly sclerotized. As inmost Cremastini, the stipital sclerite has no lateral expansion. Thelabial sclerite is broader than long and is incomplete ventrally. Theventral part of the prelabial sclerite is absent and several large sensillaare present on the ventral edge of this sclerite. The maxillary andlabial palps are relatively large. The spu-acle is of the usual shape inthe Ophioninae with a lightly sclerotized closing apparatus adjoining 496 PROCEEDINGS OF THE NATIONAL MUSEUM. .^-,-_--,A-. Ol rnm ^ Figure 59.—Ophioninae:Tersilochini, head sclerites: Tersilochus argentinensis (Blanchard)(antenna not visible on preparation; 2, spiracle; 3, skin.) the atrium. The skin has relatively long setae, approximately equalin length to one-third the length of the mandible, but the projectionson the skin are small. Tersilochus argentinensis (Blanchard) (fig. 59) and T. conotracheli(Riley) were examined. T. conotracheli is figured by Cushman (1916)and Tersilochus sp. by Beirne (1941). Tribe Ophionini FiGUUB GO A, B Members of this tribe are endoparasitic in larger caterpillars, exceptthat Ophion bifoveolatus Brulle is known to parasitize larvae of Phyl-lophaga (Scarabeidae). Species of Ophion and Enicospilus are noc-turnal or crepuscular and are frequently attracted to lights. This is a distinctive tribe although it resembles other tribes of theOphioninae ui many basic features. The head sclerites are broadand moderatel
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