. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. Fig. 23.—The co^vpea weevil (Chalcodermus ameus), a cohost of boll-weevil parasites. Enlarged. (From Chittenden.) Contrachelus juglandis LeConte. Tliis is the walnut weevil, wliich is also parasitized by ^Iyiophasia ^nea, Cholomyia insequipes, Metd- dexia hasalis, and Sigalphus curculionis. ConotracJielus elegans Say. This weevil breeds abundantly in the petioles of hickory, the galls of Phylloxera devastatrix on pecan, in pecan nuts, in leaf rolls on liickory, and finally in the roots of Amaranthus retro- Jiexus
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. Fig. 23.—The co^vpea weevil (Chalcodermus ameus), a cohost of boll-weevil parasites. Enlarged. (From Chittenden.) Contrachelus juglandis LeConte. Tliis is the walnut weevil, wliich is also parasitized by ^Iyiophasia ^nea, Cholomyia insequipes, Metd- dexia hasalis, and Sigalphus curculionis. ConotracJielus elegans Say. This weevil breeds abundantly in the petioles of hickory, the galls of Phylloxera devastatrix on pecan, in pecan nuts, in leaf rolls on liickory, and finally in the roots of Amaranthus retro- Jiexus. It is fre- quently parasitized by Myiophasia .^nea and Sigalphus cur- cuLiONis, and occa- sionally by Cholomyia insequijjes. Conotrachelus nen- uphar Herbst. The common plum curculio (fig. 24) breeds in the pulp of drupes and pomes. The larvae are parasitized by Cholomyia inxquipes, Sigal- phus CURCULIONIS, MicROBRACON MELLiTOR, and PoHzon conotracheli, and the eggs by Anaphes conotracheli. Conotrachelus nasohe- Conte. The common acorn weevil is para- sitized by Sigalphus CURCULIONIS. Tyloderma foveolatum Say. This common wee- vil breeds prolifically in the stems of Onagra hien- nis and Epilobium. It is liighly parasitized by Neocatolaccus tylodermx, Cerambycobius cyan- iceps, eurytoma ty- lodermatis, microbracon mellitor, sigalphus curculionis, end Urosigalphus sp. nov. Gerstseclceria nohilis LeConte (Acalles). The common prickly-pear weevil is parasitized by Catolaccus hunteri and by several other Fig. 24.—The plum curculio (Conotrachelus nenuphar), a cohost of boll-weevil parasites: a, Larva; b, adult; c, pupa. Much enlarged. (From Chittenden.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Bureau of Entomology. Washington : G. P. O.
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