Trichadenotecnum oaxacense, 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 : 660

TRICHADENOTECNUM OAXACENSE SP. NOV.

Material examined: Holotype. Male. Mexico: 10 mi NW Tapanatepec , Oaxaca, 20.viii.1968, ELM & ANGA ( ISU).

Etymology: The specific epithet is taken from the type locality of this species.

Description: Male (based on a weakly coloured teneral specimen). Head. White in ground colour; vertical and orbital markings faint; coronal suture black; frontal suture hardly visible; frons without markings; eye black, small, IO/D = 1.3; ocelli white, ocellar field black; antennal socket bordered with pale band; postclypeus with c. nine rows of pale brown spots, ventrally with pale brown oval markings; anteclypeus pale. Antenna pale. Mouth parts pale.

Thorax. Prothorax pale brown. Mesonotum white in ground colour; each lobe of scutum with large pale brown markings, marking on anterior lobe bilaterally divided by narrow white line, marking on lateral lobe divided in two by narrow white transverse line; scutellum pale, antero-lateral corner brown; postnotum pale. Metanotum pale brown, anterior lobe paler, lateral lobe with white spot posteriorly; antero-lateral corner of scutellum brown. Meso- and metapleurites pale brown except membranous region white.

Legs. Pale brown.

Forewing ( Fig. 1E ). Spots in cell a 1 indistinct. Opposing spots in cell r indistinct. Proximal band represented by broad marking just below fork of M + Cu and narrow marking along basal section of Rs. Distal band indistinct except for very faint brown tinge in cell r 5. Spot on roof of cell m 3 narrow, only distinct on distal Rs-CuA fork. Submarginal spots distinct only for faint spots in cells r 5, m 1 and m 2. Marginal clouds indistinct except for faint brown tinge on distal ends of vein R 4+5 and M 1. Hindwing. Hyaline; veins pale brown.

Abdomen. White, each segment with irregular brown band ventrally. Terminalia. Sclerite on eighth venter hardly visible ( Fig. 3G ). Epiproct lobe ( Fig. 3F ) nearly parallel sided, almost as long as wide, dorsal margin rounded, posterior surface slightly concave. Paraproct ( Fig. 3E ): ventro-lateral band indistinct. Hypandrium ( Fig. 3G ) symmetrical, with pair of weakly sclerotized lobes at base of median tongue; left and right processes conical, well projected and directed posteriorly; median tongue with some fine setae ventro-medially, strongly expanded basally, apical margin serrated and hollowed medially, ventral surface covered with wrinkles except antero-lateral region denticulated. Phallosome ( Fig. 3H ) with broad and rounded posterior margin, notched medially; postero-dorsal margin with denticles. Phallobase parallel sided posteriorly, then narrowing to pointed anterior end.

Length. B 1.6; FW 2.0; HW 1.5.

Female. Unknown.

Distribution: Mexico.

Figures

Figure 1. Forewings of Trichadenotecnum circularoides (A), T. gonzalezi (B), T. peruense (C), T. tambopatense (D), T. oaxacense (E) and T. bos (F).

Figure 3. Male terminalia structures of Trichadenotecnum tambopatense (A–D), T. oaxacense (E–H) and T. bos (I, J), showing terminalia in lateral view (A, E), epiproct in posterior view (B, F), hypandrium in ventral view (C, G, I) and phallosome in ventral view (D, H, J).