Ptychocroca lineabasalis 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 : 9

Ptychocroca lineabasalis Brown and Razowski , new species

Figs. 4 , 19 , 31

Diagnosis. The male genitalia of Ptychocroca lineabasalis are most similar to those of P. keelioides in the overall shape of valva. They can be distinguished from the latter by the absence of the subdistal keel of the aedeagus.

Description. Male forewing ( Fig. 31 ) without patch of upraised scales at 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 haripencil. Male genitalia ( Fig. 4 ) with uncus, socii, and gnathos as described for the genus. Transtilla with moderately small mesal fold. Valva broadest basally, venter nearly straight in basal 0.25, followed by short, distinct ventrocaudal convexity; disc of valva without comb; plicate area large. Aedeagus as described for genus, infrequently with dorso­median spines; vesica with cornuti forming a single row. Female genitalia ( Fig. 19 ) with sterigma fairly long, bearing rounded sclerotized lobe at middle immediately posterad of ostium; a pair of slender, membranous, V­shaped pockets laterally; sclerite in colliculum situated laterally, adjacent to a second medially situated sclerite.

Holotype, ɗ, Chile, Santiago Province, 7 km N Santiago, 500 m, 19–20 Nov 1981, D. and M. Davis (USNM).

Paratypes. Chile: Santiago Province: 6 km W Til­til, 15 Dec 1982 (3ɗ), R. Brown (MEM). Til­til, La Dormida 600–800 m, 16–17 Nov 1982 (2ɗ), L. Peña (USNM). 7 km N Santiago, 500 m, 22–25 Oct 1981 (3ɗ, 3Ψ), 19–20 Nov 1981 (1ɗ, 2Ψ), D. and M. Davis (USNM). Pilay, Río Pueco, ca. 45 km S Santiago, 800 m, 23–24 Nov 1981 (3ɗ), D. and M. Davis (USNM). Quebrada de la Plata, 775 m, 6–7 Oct 1976 (1ɗ), M. E. Erwin (UCB). Quillota, 1886 (2ɗ), Paulson (BMNH).

Distribution and biology. Ptychocroca lineabasalis is known only from Santiago Province, Chile, from about 500 to 1250 m elevation. Adults have been collected from October through December. The early stages are unknown.

Etymology. The specific epithet refers to the short linear portion of the ventral margin of the valva.

Figures

FIGURES 4 – 6. Male genitalia of Ptychocroca; valvae spread, aedeagus removed (to left of capsule). 4, P. lineabasalis; 5, P. galenia; 6. P. g a l e n i a.

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.