Psecadioides

Huang, Guo-Hua, Hirowatari, Toshiya & Wang, Min, 2010, A review of the China-Himalayan members of the subfamily Euplocaminae (Insecta: Lepidoptera: Tineidae), Zootaxa 2511, pp. 1-21 : 12-13

Psecadioides cuneus Huang, Hirowatari & Wang, sp. nov.

( Figs. 2 D, 3C, 6)

Diagnosis. This new species is superficially similar to P. aspersus and Euplocamus charadropis Meyrick but can be distinguished by a larger white mark from the basal 1/5 to 2/5 of the forewing costa, which is absent in those two species.

Description. Male ( Fig. 2 D). Head: Vertex and frons rough scaled, covered with dense, erect, yellowish white scales. Antenna length about 3.4–3.6 mm, about 0.5 x as long as forewing; scape white, without pectin; flagellum black. Maxillary palpus very short, indistinct, with gray white scales. Labial palpus 2.0 x height of head, second segment with dense white scales mesally, dark gray scales laterally with lateral bristles absent. Thorax: Dorsally covered with dense white scales, except tegula smooth with the anterior half black and mesonotum with the anterior margin black. Legs with scales missing. Forewing length 6.2–7.2 mm, elongate, rounded apically, about 3.3–3.4 x as long as wide including fringe (about 3.4–3.5 x as long as wide excluding fringe); ground color black except termen, basal posterior margin white mixed with black spots, larger white marking in area from basal 1/5 to 2/5 costa. Fringe short, black in apical region, long at termen, consisting of white scales mixed with black; all veins present, R1 arising from 1/2 of discal cell; R5 ending at termen near apex; 1A+2A 3.0 x as long as 1A; chorda present, extending to crossvein R-M; retinaculum elongate, curled at apex ( Fig. 3 C). Hindwing relatively elongate, rounded apically, 1.8–1.9 x as long as wide including fringe (2.7–2.8 x as long as wide excluding fringe); ground color brownish gray mixed with broad and narrow scales, except basal 3/4 of costa with slender white scales; fringe short, longer along basal posterior margin, consisting of white to gray scales; crossvein M-CuA present, M branched in discal cell ( Fig. 3 C). Abdomen: Male genitalia ( Fig. 6 ) with uncus complex, consisting of four sclerotized lobes, dl swollen, large, densely covered with minute knobs, hemispherical in lateral view; ll rectangular in dorsal view, separated from dl; al small, triangular, bearing spinules dorsally; vl larger, papillate, more weakly sclerotized. Tegumen deeply and broadly concave at middle of anterior margin, weakly sclerotized, margined with narrow, subdorsal, posterior, membranous areas, vinculum wedge-shaped at anterior margin in ventral view. Valva with a basal process, inwardly without median keel; inner surface with an ellipsoid protuberance bearing long thick bristles; transtilla irregularly flap-shaped, strongly sclerotized, well developed, fused at middle. Juxta absent. Aedeagus straight, inflated basally, cornuti absent, about 0.7 x length of valva, apex slightly curved ventrally. Female unknown.

Holotype, 3, China: Hainan, Ledong, Jianfengling National Nature Reserve, 970 m, 20.X.2006, light trapping, leg. G.H. Huang & T. Hirowatari. Deposited in SCAU.

Paratypes, 13, China: Sichuan, Moxi, 2500 m, 1.VIII.2004, light trapping, leg. L.S. Chen & M. Wang; 13, Guangdong, Shaoguan, Nanling National Nature Reserve, 1000 m, 6.VIII.2005, light trapping, L.S. Chen; 13, Guangxi, Jingxi, 9–19.IX.2006, light trapping, leg. L.S. Chen & W. Xiong; 13, Hainan, Wuzhishan, Atuoling, 860 m, 23–24.X.2006, light trapping, G.H. Huang & T. Hirowatari. Deposited in OPU and NSMT.

Host. Unknown.

Distribution. China (Sichuan, Guangdong, Guangxi, Hainan).

Etymology. The specific epithet is from the Latin cuneus (= troops drawn up for battle in the shape of a wedge), referring to the wedgelike concavity at the middle of vinculum.

Figures

FIGURE 2. Male adults of Euplocaminae spp. A. Euplocamus anthracinalis (Scopoli, 1763); B. E. melanchrodes Meyrick, 1916; C. Paspersus Butler, 1881; D. P. cuneus, sp. nov. holotype, male; E. Psecadioides tanylopha (Meyrick, 1932); F. P. owadai, sp. nov., holotype, male; G. P. prominens, sp. nov., holotype, male; H. E. charadropis Meyrick, 1934.

FIGURE 3. Wing venation of Euplocaminae spp. A. Psecadioides aspersus Butler, 1881, male; B. P. aspersus, female; C. P. cuneus, sp. nov., paratype, male; D. P. tanylopha (Meyrick, 1932), male.

FIGURE 6. Male genitalia of Psecadioides cuneus, sp. nov., holotype. A. Genitalic capsule, excluding aedeagus, lateral view. B. Right valva, inner view. C. Aedeagus, lateral view. D. Aedeagus, ventral view. E. Genitalic capsule, excluding aedeagus and valva, ventral view. F. Genitalic capsule, excluding aedeagus, dorsal view.