. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. BIOLOGY OF THE COTIOSTS. 75 lacunosa. In the Mclia berries it is parasitized by Cerambycobius CUSIIMANI, EUKYTOMA TYLODERMATIS, and PeDICULOIDES sp. Apion segnipes Say in Cracca virginiana is parasitized by Eury- TOMA TYLODERMATIS. Apion decoloratum Smith. Dr. Cliittenden records this weevil as breeding in Meihomia paniculata and parasitized by Catolaccus incertus. Apion griseum Smith. Dr. Chittenden records this weevil as breeding in Phaseolus retusus, P. wrightii, P. poly stocky us, and
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. BIOLOGY OF THE COTIOSTS. 75 lacunosa. In the Mclia berries it is parasitized by Cerambycobius CUSIIMANI, EUKYTOMA TYLODERMATIS, and PeDICULOIDES sp. Apion segnipes Say in Cracca virginiana is parasitized by Eury- TOMA TYLODERMATIS. Apion decoloratum Smith. Dr. Cliittenden records this weevil as breeding in Meihomia paniculata and parasitized by Catolaccus incertus. Apion griseum Smith. Dr. Chittenden records this weevil as breeding in Phaseolus retusus, P. wrightii, P. poly stocky us, and StropTiostyles paucijiora, and parasitized by Catolaccus incertus. Apion nigrum Smith. Breeds in buds of Rohinia pseudacacia and is parasitized by Catolaccus incertus. Apion rostrum Say in pods of Baptisia is parasitized by Ceramby- cobius CYANICEPS. Lixus musculus Say. This weevil is known both from the Lower Sonoran and Austroriparian zones. It breeds in the stems of Poly- gonum pennsylvanicum., P. portoricense, and P. punctatum, making an oblong gall or swelling. It is parasitized by Eurytoma tylodermatis, Cerambycobius cyaniceps, Neocatolaccus tylodermse, Glyptomorpha rugator, G. novitus, and Horismenus lixivorus. Lixus scrohicollis Boheman. This weevil (fig. 20) is probably confined mainly to the moist Austral zones. It breeds abundantly in the stems of Amhrosia trijida, A. artemisisefolia, A. psilostachya, and Helianthus spp. It is quite highly parasitized hj Ptinobiusmagnijicus, EU'KYTOMA TYLODERMATIS, CERAMBYCOBIUS CYANICEPS, Glyptomorpha rugator, G. mavaritus, G. lixi, Vipio helfragei, Microdus simillimus, and Horismenus lixivorus. Mr. Townsend has described LixopJiaga parva from a specimen reared from this weevil at Dallas, Tex., August 15, Fig. 20.—The bloodweed weevil {Lixus scrobicoUis), & cohost of boll-weevil para- sites. Enlarged. (From Hunter and Hinds.') ERIRRHININ^. / Smicronyx tychoides LeConte. This weevil breeds in stem galls of va
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