PROC. ENTOMOL. SOC. WASH. 86(2), 1984, pp. 278-286 REVIEW OF CORTICIVORA (LEPIDOPTERA: TORTRICIDAE) WITH ANALYSIS OF ITS TRIBAL RELATIONSHIPS AND DESCRIPTIONS OF NEW SPECIES Richard L. Brown Mississippi Entomological Museum, Department of Entomology, Mississippi State, Mississippi 39762. Abstract.— The genus Corticivora Clarke is reviewed and two new species, C parva and C. chica, are described. Relationships of Corticivora and allied genera to Eucosmini and Grapholitini are discussed. The monotypic genus Corticivora was described by Clarke (195 1) to include C. clarki, an unusual species reared from bark oi Pinus resinosa Ait. in Connecticut. Clarke considered the genus to be structurally similar to Gypsonoma Meyrick (Eucosmini), but "clearly laspeyresiine" and "most nearly related to Laspeyresid" (Grapholitini, Cydia). Corticivora was described accurately as resembling Gyp-sonoma in having a fore wing with all veins separate, a hind wing with veins Cu, and M3 stalked and R^ and M, stalked, and well-developed, weakly sclerotized setose socii. The two genera were differentiated by the forewing venation with the origin of the internal vein (chorda) between veins R, and R2 in Corticivora and between veins R2 and R3 in Gypsonoma. The two genera were further differentiated by the hindwing venation with M2 and M3 well separated in Corticivora (as in Grapholitini) and approximate in Gypsonoma (as in other Eucosmini). Corticivora was differentiated from Cydia by the presence of socii, the stalking of R^ and M, of the hindwing, and the scobinate-dentate form of the signa. A group of unusually small olethreutine moths has been identified as two new species of Corticivora, both of which are smaller than all other known North American Tortricidae. In addition to their descriptions, the following modifica-tions and additions are given for the generic and species description by Clarke (1951). Corticivora Clarke Head: Antennal scape with or without elongated scales covering pedicel. Forewing: R vein weakly developed basally; R3 basally approximate or remote from R4; R4 and R5 basally approximate, connate, or stalked. Hindwing: R weakly developed basally; termen slightly concave or straight. Male genitalia: Apex of tegumen setose; socii arising from near apex of tegumen; gnathos lightly sclerotized; anellus expanded and flattened ventrally; caulis wide, flattened; valva with or without ventral emargination between sacculus and cu-cullus; cucullus narrow or broad, with or without stout setae on outer wall; ae-deagus without non-deciduous comuti.