Ptychocroca keelioides Brown and Razowski

Brown, John W. & Razowski, Józef, 2003, Description of Ptychocroca, a new genus from Chile and Argentina, with comments on the Bonagota Razowski group of genera (Lepidoptera: Tortricidae: Euliini), Zootaxa 303, pp. 1-31 : 8

Ptychocroca keelioides Brown and Razowski , new species

Figs. 3 , 18 , 30

Diagnosis. Like P. apenicillia , P. keelioides is considerably more variable in forewing maculation than most of its congeners; in many specimens the gray overscaling of the forewing diminishes the contrast between the dark basal area and the white or pale distal portion. Ptychocroca keelioides is one of five species in there is a patch of beige­orange scaling on each side of the pouch that conceals the hindwing hairpencil (see Table 1 ). Males of P. keelioides can be distinguished from those of P. crocoptycha , P. galenia , and P. simplex by the absence of the tuft of upraised scales near the base of the costa. They can be distinguished from those of P. lineabaslis by a single conspicuous feature of the genitalia: the aedeagus of P. keelioides has a conspicuous triangular process ventrally near the distal end lacking in P. lineabasalis .

Description. Male forewing ( Fig. 30 ) without patch of upraised scales near base of costa. Male hindwing with hairpencil concealed in fold of vein CuP, with a patch of beigeorange scales on each side of vein adjacent to hairpencil. Male genitalia ( Fig. 3 ) with uncus, socii, and gnathos as described for the genus. Transtilla with weakly developed mesal lobe. Valva broadest at base, ventral edge of basal 0.33 relatively straight, followed by short, distinct concavity between angular termination of sacculus and ventro­caudal prominence of cucullus; disc with small plicate area. Aedeagus as described for genus, except with short, rounded­triangular keel subdistally on venter. Female genitalia ( Fig. 18 ) with sterigma bearing large, dorsally rounded, lamella antevaginalis, strongly sclerotized along dorsal edge; invaginated, membranous area anterad of sterigma with a pair of shallow, sublateral, V­shaped pockets; antrum well defined, with narrow split ventrally and patch of irregular sclerotization in anterior portion; sclerites of colliculum lateral.

Holotype, ɗ, Chile, Santiago Province, nr. Punta Yeso, ca. 70 km SE Santiago, 27–28 Oct 1981, D. and M. Davis (USNM).

Paratypes. Chile: Santiago Province: Same data as holotype (34ɗ, 27Ψ) (USNM, PAS, BMNH). Guayacan, 1100 m, 25 Jan 1951 (1ɗ), L. Peña (USNM), Oct 1952 (1ɗ, 2Ψ), L. Peña (BMNH). El Alfalfal, 29 Feb 1968 (5ɗ), O. Flint and L. Peña (USNM). Río Colorado, ca 40 km SE Santiago, 1100 m, 29–31 Oct 1981 (1ɗ), D. and M. Davis (USNM). Centro­Austral, Jan­Mar 1898 (1ɗ), V. Izquerdo (USNM).

Distribution and biology. Ptychocroca keelioides is known only from Santiago Province. Adults have been collected from October through February. The early stages are unknown.

Etymology. The specific epithet refers to the keellike process of the aedeagus.

Figures

FIGURES 1 – 3. Male genitalia of Ptychocroca; valvae spread, aedeagus removed (to left of capsule). 1, P. apenicillia; 2, P. nigropenicillia; 3, P. keelioides.

FIGURES 16 – 21. Female genitalia of Ptychocroca and Haemateulia. 16, P. apenicillia; 17, P. nigropenicillia; 18, P. keelioides; 19, P. lineabasalis; 20, P. galenia; 21, P. crocoptycha;

FIGURES 28 – 35. Adult males of Ptychocroca. 28, P. apenicillia; 29, P. nigropenicillia; 30, P. keelioides, 31, P. lineabasalis; 32, P. crocoptycha; 33, P. crocoptycha; 34, P. galenia; 35, P. s i m p l e x.