Trichadenotecnum tambopatense, 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 : 657-660

TRICHADENOTECNUM TAMBOPATENSE SP. NOV.

Material examined: Holotype. Male. Peru: Madre de Dios. Río Tambopata Reserved Zone , 30 km SW Puerto Maldonado, 290 m, 10.ix.1984, T. L. Erwin et al. ( SI) . Paratypes. 1 male, 2 females, same data as holotype, 4.v.1984 ( SI) ; 1 male, same locality, 6.ix.1984 ; 2 males, same data as holotype ( SI) ; 1 male, same locality as holotype, 14.ix.1984 ( SI) .

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

Description: Male. Head. White in ground colour; vertical and orbital markings brown; coronal suture black; frontal suture bordered with narrow pale brown line dorsally; frons with pair of pale brown lines at middle; gena brown in ventral half with white spot ventrally; eye black, IO/D = 1.0; ocelli white, ocellar field pale; antennal socket bordered with narrow brown band; postclypeus with c. six rows of brown spots, ventral margin blackish brown; anteclypeus brown. Antenna pale brown. Mouth parts pale brown; 4th segment of maxillary palpus darker.

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

Legs. Fore- and middle femur, tibiae and tarsi unavailable. All coxae, trochanter and hind leg brown, distal ends of hind femur and tibiae paler.

Forewing ( Fig. 1D ). Spots in cell a 1 faint, indistinct. Opposing spots in cell r indistinct except for very small posterior spot. Proximal band represented by triangular or semicircular markings just below fork of M + Cu and irregular-shaped marking on basal section of Rs. Distal band indistinct except for faint brown tinge in cell r 5. Spot on roof of cell m 3 small, only distinct on distal Rs-CuA fork. Submarginal spots distinct only for large spots in cells r 5, m 1 and m 2. Marginal clouds indistinct except for brown spots on distal ends of vein R 2+3, R 4+5 and M 1. Hindwing. Hyaline, cell CuP with faint brown markings at distal end; veins brown.

Abdomen. White, sparsely with minute blackish brown spots ventrally. Terminalia. Anterior margin of 8th sternum ( Fig. 3C ) deeply incised by membranous region medially. Epiproct lobe ( Fig. 3B ) longer than wide, nearly parallel sided and with smoothly rounded dorsal margin, posterior surface shallowly concave. Paraproct ( Fig. 3A ): ventro-lateral band absent. Hypandrium ( Fig. 3C ): left and right processes conical, directed posteriorly, basally arranged with many processes of variable size; basal and distal parts of median tongue strongly expanded laterally, apical margin slightly hollowed, with several fine and rather long setae, ventral surface covered with denticles distally and antero-laterally. Phallosome ( Fig. 3D ): posteriorly with pair of conical processes medially. Phallobase parallel sided posteriorly, then narrowing to truncated anterior end.

Length. B 1.8–2.0; FW 2.3–2.4; HW 1.7–1.8.

Female (available from dissected females only). Colour and general morphology almost as in male. IO/D = 2.1. Fore and middle legs brown, distal ends of femur white, tibiae paler. Genitalia. Egg guide of subgenital plate ( Fig. 4A ) gradually narrowing to slightly arched distal margin, medially with membranous region; pigmented arms closely approximated basally, antero-internally with extension of sclerite. External valve of gonapophyses ( Fig. 4B ) small, internal end not reaching internal margin of dorsal valve, posteriorly with weak posterior lobe. Internal plate as in Fig. 4C .

Length. B (unavailable); FW 2.1–2.2; HW 1.6–1.7.

Distribution: Peru.

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).

Figure 4. Female genitalia of Trichadenotecnum tambopatense, showing subgenital plate (A), gonapophyses (B) and internal plate (C) in ventral view.