Trichadenotecnum acutum, 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 : 696-697

publication ID	https://doi.org/ 10.1111/j.1096-3642.2008.00398.x
DOI	https://doi.org/10.5281/zenodo.5492560
persistent identifier	https://treatment.plazi.org/id/7E7087BE-FF98-BB15-FC21-F91E6860F96D
treatment provided by	Felipe
scientific name	Trichadenotecnum acutum
status	sp. nov.

Treatment

TRICHADENOTECNUM ACUTUM View in CoL SP. NOV.

Material examined: Holotype. Male. Mexico: 40 mi S Oaxaca City , 19.viii.1968, ELM ( ISU) . Paratypes. 2 males, same data as holotype ( ISU) .

Etymology: The specific epithet is taken from the Latin acutus (= sharp), indicating the narrow and pointed clunial arm 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 band; frons with pair of pale brown bands at middle and with pair of brown spots laterally; gena white; eye black, IO/D = 1.1; ocelli white, ocellar field black; antennal socket bordered with narrow brown band; postclypeus with c. 10 rows of pale brown spots dorsally, fused with each other ventrally to form a large blackish brown marking, lateral margin of postclypeus brown, ventro-lateral corner without marking; anteclypeus brown. Antenna pale brown, pedicel and scape darker. Mouth parts pale brown; 4th segment of maxillary palpus brown.

Thorax. Prothorax brown. Mesonotum pale brown; anterior surface of scutum pale brown; anterior margin of lateral lobe of scutum black; scutellum brown, anterior margin darker; postnotum white. Metanotum brown, with white spot on posterior region of lateral lobe of scutum; anterior margin of scutellum darker. Mesopleuron white except dorsal third brown. Metapleuron brown except membranous region white.

Legs. Coxae and tarsi of all legs and hind femur brown; fore and middle femora pale brown with white part medially; tibiae pale with brown part near distal end.

Forewing ( Fig. 17K View Figure 17 ). Spots in cell a 1 apparent, distal spot large. Opposing spots in cell r distinct but anterior spot less so. Proximal band narrow, broadly interrupted just beyond fork of M + Cu. Distal band narrow and faint. Spot on roof of cell m 3 distinct. Submarginal spots apparent; spot in cell r 5 larger; spots in cells r 1 and m 3 indistinct. Marginal clouds faint. Hindwing. Hyaline, cell CuP with group of faint brown spots in distal half; veins brown.

Abdomen. White, each segment with irregular brown band. Terminalia. Clunial arm ( Fig. 34A View Figure 34 ) well sclerotized, apical part long and slender, forming free needle-like process, antero-ventrally with strongly sclerotized lobe covered with denticles. Eighth venter ( Fig. 34C View Figure 34 ) with transversal sclerite, anterior margin rounded, posteriorly fused with hypandrium at middle. Epiproct lobe ( Fig. 34B View Figure 34 ) wider than long, broadened dorsally, dorsal margin with conical process medially, posterior surface almost flattened. Paraproct ( Fig. 34A View Figure 34 ): ventro-lateral band small, rectangular; distal process short. Hypandrium ( Fig. 34C View Figure 34 ): left and right processes well developed, rising from postero-lateral corners, slightly curved, apices directed posteriorly; median tongue constricted medially, posterior margin with rounded notch medially, ventral surface smooth with few wrinkles, dorsal keel shallowly rounded. Phallosome ( Fig. 34D View Figure 34 ): pseudoparameres widely separated, broad and short, wider than long, rounded apically. Phallobase narrowing to pointed anterior end.