Xiphocentron (Antillotrichia) regulare Flint 1991

Xiphocentron (Antillotrichia) regulare

The species seems to be most closely related to X. surinamense Flint. It is most easily distinguished from that species and its other relatives by the nearly straight aspect of the cerci and claspers in lateral view. Most species have the cerci sharply angled near the base and the apex of the claspcrs angled dorsad.

ADULT.—Length of forewing, 5 mm. Color fuscous; forcwing fuscous with a silvery-white spot at 2/3 of its length. Hindleg with apical spine slender, about half length of basal tarsomere. Fifth sternum with anterolateral region with cuticle modified, reticulate. Male genitalia: Ninth sternum with narrow anterolateral processes, posterior margin slightly bilobate in ventral aspect; tergum rounded anteriorly, with a pair of submesal lobes posteriorly. Tenth tergum short, tip not notably decurved, sclerotized laterally. Cercus long, in lateral aspect straight from base to apex. Clasper enlarged basally, apical section slender, nearly straight in lateral aspect, mesal face with a series of irregular dark points. Phallus very long and slender, apex slightly enlarged and divided ventrally; base flared, bell-like.

MATERIAL.—Holotype, male: COLOMBIA. DPTO. ANTIOQUIA: 12 km N Fredonia [road to Medellín], 2000 m, 22 Feb 1983, O.S. Flint, Jr. USNM Type.

The typical subgenus is restricted to the southern Himalayas, while the subgenus Caenocentron is limited to the New World from Mexico to Colombia. The present species brings to six the number of species known in the Neotropics.

No larvae are known in this genus.

Xiphocentron regulare là một loài Trichoptera trong họ Xiphocentronidae. Chúng phân bố ở vùng Tân nhiệt đới.