Trichadenotecnum latipenne, 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 : 675

TRICHADENOTECNUM LATIPENNE SP. NOV.

Material examined: Holotype. Male, Mexico, Cañada de Contreras, D. F. Camino a Los Dínamos, 2700 m, 29.vi.1977, ANGA ( UNAM) . Paratypes. Mexico: 2 females, same data as holotype ( UNAM); 1 male, 1 female, D. F . Cañada de Contreras, 2600 m, 14.vii.1978, ANGA ( UNAM); 1 male, 2 females. Desierto de los Leones, D. F., 23.i.1972, ANGA ( UNAM); 1 male, 1 female. Morelos, 2.4 mi W. Huitzilac, 6.vii.1973, ELM ( ISU); 2 males, Estado de Mexico, 2 mi W. Río Frío , Hwy. 190, 10.vii.1973, ELM ( ISU); 1 male, 1 female, Hidalgo, Acaxochitlán, carretera 130, 22.v.1975, ANGA ( UNAM) .

Etymology: The specific epithet is taken from the Latin latus (= broad) + penna (= wing), indicating the wide forewing of this species.

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 dark brown band; frons with two pairs of dark brown bands, lateral pair smaller but darker; gena mostly dark brown with white portion medially; eye black, small, IO/D = 1.1–1.4; ocelli white, ocellar field black; antennal socket bordered with dark brown band; postclypeus with c. eight 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 mesonotum paler, median and postero-lateral regions white, with pair of faint blackish spots at posterior end of anterior lobe.

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

Forewing ( Fig. 5H ). Somewhat broad, moderately spotted. Spots in cell a 1 distinct, distant spot usually larger or sometimes almost equal in size. Opposing spots in cell r distinct but sometimes faint. Proximal band narrow and faint, darker and distinct in cell CuP, just below fork of M + Cu and around Rs-M fusion. Distal band broad and distinct. Spot on roof of cell m 3 usually small and indistinct in distal half. Submarginal spots distinct, spots in cells r 1 and m 3 fainter and sometimes indistinct. Marginal clouds indistinct. Hindwing. Hyaline, cell CuP with faint sparse spots or not; veins brown.

Abdomen. White, each segment with irregular blackish brown band, thicker ventrally and laterally. Terminalia. Clunial arm variable in shape but usually short. Epiproct lobe ( Fig. 14D ) short, shorter than basal width, usually sharply narrowing to rounded or truncate narrow dorsal margin. Hypandrium ( Fig. 14E ): left process conical, strongly projected postero-laterally, slightly to strongly curved; right process triangular, weakly projected posteriorly; median tongue slightly to moderately constricted near middle, apical margin with triangular notch medially. Phallosome ( Fig. 14F ): pseudoparameres short and broad, expanded laterally, almost fused medially with shallow hollow posteriorly. Phallobase narrowing anteriorly, with triangular anterior end.

Length. B 2.8–3.2; FW 4.6–5.5; HW 3.5–4.2.

Female. Colour and general morphology almost as in male; eye IO/D = 2.2–2.3. Genitalia: Egg guide of subgenital plate ( Fig. 15A ) broad, broader than long, anterior margin somewhat rounded, anterior margin of body of subgenital plate almost straight, with narrow and deep median notch. Internal plate as in Figure 15B .

Length. B 3.6–4.0; FW 4.8–5.5; HW 3.6–4.5.

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 14. Male genitalia of Trichadenotecnum sparsum (A–C) and T. latipenne (D–F), showing epiproct in posterior view (A, D), hypandrium in ventral view (B, E) and phallosome in ventral view (C, F).

Figure 15. Female genitalia of Trichadenotecnum latipenne, showing subgenital plate (A) and internal plate (B) in ventral view.