Trichadenotecnum carinatum, 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 : 670-671

TRICHADENOTECNUM CARINATUM SP. NOV.

Material examined: Holotype. Male , Mexico: Oaxaca, 29 km SE Nochixtlán, 21.viii.1973, ANGA ( UNAM) . Paratypes. 2 males, same data as holotype ( UNAM) .

Etymology: The specific epithet is taken from the Latin carina (= keel), indicating the keel-like hypandrial right process of this species.

Description: Male. Head. White in ground colour; vertical and orbital markings brown; coronal suture blackish brown; frontal suture pale brown; frons with two pairs of brown bands, lateral pair not reaching frontal suture; gena brown, with paler portion medially; eye black, large, IO/D = 0.9; ocelli white, ocellar field black; antennal socket bordered with dark brown band; dorsal region of postclypeus with c. eight rows of blackish brown spots, fused with each other ventrally forming large T-shaped marking, ventrolateral region without markings; anteclypeus brown. Antenna brown, pedicel and scape darker. Mouth parts brown.

Thorax. Prothorax brown. Mesonotum white in ground colour; anterior surface of scutum brown; anterior margin of lateral lobe of scutum black; anterior lobe of scutum with pair of blackish brown spots at posterior end, anteriorly with pair of large oval brown markings narrowly divided by white longitudinal band, each marking with paler region at middle; lateral lobes of scutum mostly brown, with pale region medially; scutellum brown, anterior margin darker, with pair of pale circular areas on posterior margin at middle. Metanotum brown, medially with white portion; lateral lobe with white spot posteriorly; scutellum as in mesonotum. Meso- and metapleurites brown except membranous region white.

Legs. Brown; fore coxa paler; tibiae paler with brown apices; hind femur with pale portion near distal end.

Forewing ( Fig. 5E ). Rather sparsely spotted. Spots in cell a 1 distinct, basal one smaller. Opposing spots in cell r clear, partly fused with each other. Proximal band narrow but distinct, broadly interrupted just beyond fork of M + Cu. Distal band faint, narrow in cell r 5. Spot on roof of cell m 3 distinct but small. Submarginal spots hardly distinct, spot in cell r 5 large and distinct. Marginal clouds indistinct. Hindwing. Hyaline, cell CuP densely covered with pale brown spots distally, much sparser basally; veins brown.

Abdomen. White. Terminalia. Clunial arm long, triangular. Epiproct lobe ( Fig. 13A ) long, longer than wide, gradually narrowing to rounded dorsal margin. Hypandrium ( Fig. 13B ): left process needle-like, long, strongly projected posteriorly, slightly curved and directed postero-externally at tip; right process less projected, dorsally with longitudinal keel; median

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