Trichadenotecnum quaesitum

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 : 682

THE QUAESITUM GROUP

Diagnosis: Forewing extensively covered with small spots ( Fig. 17F–I ) or not ( Fig. 17C, D ), submarginal spots usually apparent; Rs fork obtuse; 3rd section of CuA usually arched. Male terminalia. Eighth venter ( Fig. 21C ) with large transversal sclerite, postero-medially fused with hypandrium. Clunial process ( Fig. 21A ) well developed, long, forming free process apically, antero-ventrally with ball-shaped lobe. Epiproct ( Fig. 21A, B ) chair-shaped, epiproct lobe long and wide, protruded over clunium, its dorsal margin wide and with small projection at middle. Paraproctal distal process ( Fig. 21A ) directed upwards. Hypandrium ( Fig. 21C ) asymmetrical; left and right processes well developed, conical or needle-like in shape, right process strongly bent internally near its base and crossing with left process. Median tongue much longer than wide, broadened to flat or slightly sinuated apical margin, its dorsal surface with keel covered with denticles. Phallosome ( Fig. 21D ) with broad pseudoparameres. Female genitalia. Egg guide of subgenital plate ( Fig. 24A ) broadened apically, apical margin almost flat or with very shallow notch medially. Ventral valve of gonapophyses ( Fig. 24B ) long; posterior lobe of external valve strongly projected. Internal plate symmetrical ( Fig. 24C ) or slightly asymmetrical ( Fig. 28C ); spermathecal opening surrounded by strongly pigmented plate; anterior region unpigmented or only slightly pigmented.

Figures

Figure 17. Forewings of Trichadenotecnum erwini (A), T. chiapense (B), T. quaesitum (C), T. quaesitellum (D), T. cerrosillae (E), T. maculatum (F), T. neoleonense (G), T. ericium (H), T. brevicornum (I), T. concinnum (J), T. acutum (K) and T. nicaraguense (L.).

Figure 21. Male terminalia structures of Trichadenotecnum quaesitum, showing terminalia in lateral view (A), epiproct in posterior view (B), hypandrium in ventral view (C) and phallosome in ventral view (D).

Figure 24. Female genitalia of Trichadenotecnum cerrosillae, showing subgenital plate (A), gonapophyses (B) and internal plate (C) in ventral view.

Figure 28. Female genitalia of Trichadenotecnum neoleonense, showing subgenital plate (A), gonapophyses (B) and internal plate (C) in ventral view.