Trichadenotecnum magnolingum, Yoshizawa & Aldrete & Mockford, 2008

Yoshizawa, Kazunori, Aldrete, Alfonso Neri García & Mockford, Edward L., 2008, Systematics and biogeography of the New World species of Trichadenotecnum Enderlein (Insecta: Psocodea: ‘ Psocoptera’: Psocidae), Zoological Journal of the Linnean Society 153 (4), pp. 651-723 : 666-669

TRICHADENOTECNUM MAGNOLINGUM SP. NOV.

Material examined: Holotype. Male, Mexico: Veracruz, Perote , 2960 m, 7.ix.1977, ANGA ( UNAM) . Paratypes. MEXICO: 1 female, same data as holotype ( UNAM) ; 1 male, Michoacán, Hwy. 15, 17 mi E. Zacapu, 21.vii.1963, F. Hill ( ISU) ; 1 male, 11 mi E. Michoacán – Mexico State Line , Hwy. 15, 23.vii.1963, ELM & F. Hill ( ISU) .

Etymology: The specific epithet is taken from latin magnus (= large) + lingua (= tongue), refering to the large hypandrial median tongue.

Description: Male. Head. White in ground colour and extensively marked with dark brown; vertical and orbital markings dark brown; coronal suture black; frontal suture dorsally bordered with broad brown band; frons with pair of U-shaped dark brown markings; gena uniformly dark brown; eye black, IO/D = 1.1–1.7; ocelli white, ocellar field black; antennal socket broadly bordered with dark brown band; postclypeus with c. 10 rows of blackish brown spots at middle, fused with each other ventrally forming a large, T-shaped marking, ventro-lateral corner white; anteclypeus dark brown. Antenna brown, pedicel and scape darker. Mouth parts brown.

Thorax. Prothorax brown. Meso- and metathorax mostly dark brown except membranous region white; dorsal surface of mesoscutum paler. Mesopleuron with longitudinal white band medially.

Legs. Brown; median part of fore femur and tibiae of all legs except distal tips paler.

Forewing ( Fig. 5C ). Moderately to rather sparsely spotted. Spots in cell a 1 distinct, basal spot fainter. Opposing spots in cell r distinct, widely separated from each other. Proximal band distinct, faint in posterior half of cell CuP, widely interrupted beyond fork of M + Cu. Distal band broad and distinct. Spot on roof of cell m 3 small and sometimes almost indistinct. Submarginal spots distinct, spot in cell r 5 larger, spots in cell m 3 sometimes hardly distinct. Marginal clouds indistinct. Hindwing. Hyaline, basal and distal regions of cell CuP with faint sparse spots; veins brown.

Abdomen. White, ventrally and laterally with irregular brown markings. Terminalia. Clunial arm short. Epiproct lobe ( Fig. 8D ) short and broad, slightly shorter than basal width, sharply narrowing to rounded or truncated narrow dorsal margin. Hypandrium ( Fig. 8E ): left process conical, strongly projected posteriorly, straight or slightly curved; right process triangular, strongly projected posteriorly, its apex usually exceeding that of the left process; median tongue elongate, broad basally, gradually narrowing to middle, then broadened near apex, apical margin notched. Phallosome ( Fig. 8F ): pseudoparameres short and broad, expanded laterally, broadly or narrowly separated. Phallobase narrowing anteriorly, with triangular anterior end.

Length. B 2.8–3.3; FW 4.3–4.9; HW 3.2–3.7.

Female. Colour and general morphology almost as in male; eye IO/D = 2.1. Genitalia: Egg guide of subgenital plate broad ( Fig. 10A ), anterior margin almost straight, broader than long, anterior margin of body of subgenital plate with shallow circular hollow and relatively broad median notch. Internal plate as in Figure 10B .

Length. B 3.4; FW 4.6; HW 3.6.

Distribution: Mexico.

Figures

Figure 5. Forewings of Trichadenotecnum desolatum (A), T. acutolingum (B), T. magnolingum (C), T. longilingum (D), T. carinatum (E), T. tuitense (F), T. sparsum (G) and T. latipenne (H).

Figure 8. Male genitalia of Trichadenotecnum acutolingum (A–C) and T. magnolingum (D–F), showing epiproct in posterior view (A, D), hypandrium in ventral view (B, E) and phallosome in ventral view (C, F).

Figure 10. Female genitalia of Trichadenotecnum magnolingum, showing subgenital plate (A) and internal plate (B) in ventral view.