Etielloides Shibuya, 1928

Yang, Linlin, Liu, Hongxia & Ren, Yingdang, 2021, One new species of the genus Etielloides Shibuya, 1928 from China (Lepidoptera Pyralidae, Phycitinae), Zootaxa 4990 (2), pp. 361-368 : 362

Etielloides Shibuya, 1928

Etielloides Shibuya, 1928: 121 . Type species: Etielloides curvella Shibuya, 1928 , by original designation.

Diagnosis: Etielloides is diagnosed by the frons ( Figs 1a, 1b, 2a, 2b ) with a conical prominence of tufts; the antenna ( Fig. 3 ) of the male with a deep sinus bearing a ridge of scales at the base of flagellum; the elongate and narrow forewing ( Figs 1c, 2c ) with R 3+4 and R 5 stalked for about 2/3 of their lengths, M 2 and M 3 closely approximated near base; the broad subtrapezoidal hindwing ( Figs 1c, 2c ) with Sc + R 1 and Rs stalked or closely approximated for about one-half of their length, M 2 and M 3 stalked about one-half of their length; the absence of transtilla, the inflated, fusiform apical process of gnathos, the clavate costa usually with a free, curved, pointed projection at apex, and the cylindrical aedeagus with one sword-like cornutus in the male genitalia ( Fig. 5 ), and the well-developed ostium, mostly sclerotized ductus bursae and the slender ductus seminalis originating from posterior part of the corpus bursae in the female genitalia ( Fig. 6 ).

Biology. The larvae of Etielloides curvella Shibuya feed on leaves of Malus pumila var. dilcissima Koidz and Pyrus spp. ( Inoue 1982) .

Distribution. China (Fujian, Henan, Guizhou, Guangxi, Jiangxi, Shaanxi), Korea, Japan, Far East of Russia.

Remarks. The character of free, curved costal apex projection of the valva is a remarkable feature of the genus Etielloides , but there are exceptions: this projection is reduced in E. bipartitellus and absent in E. longipalpus . The similar costal apex projection is also present in Salebriaria Heinrich, 1956 , but shorter and spine-like. The genus Etielloides also differs from Salebriaria by the sharply elongate triangular uncus in the male genitalia and the corpus bursae without spines in the female genitalia. In Salebriaria , the uncus is broadly rounded at apex and the corpus bursae covered with a dense matting of fine spines.

Figures

FIGURES 1−2. Adults of Etielloides luniformis sp. nov. 1, ♂, paratype: 1a, dorsal view of head, 1b, lateral view of head, 1c wing venation; 2, ♀, paratype: 2a, dorsal view of head, 2b, lateral view of head, 2c wing venation. (Scales: 1, 1c, 2, 2c = 5.0 mm; 1a, 1b, 2a, 2b = 0.5 mm).

FIGURES 3−4. Head structure of Etielloides luniformis sp. nov. 3, ♂, paratype, slide No. DNAYLL18085; 4, ♀, paratype, slide No. DNAYLL18091. (Scales = 0.5 mm).

FIGURES 5−6. Genitalia of Etielloides luniformis sp. nov. 5, ♂, paratype, slide No. DNAYLL18089; 6, ♀, paratype, slide No. DNAYLL18088. (Scales = 0.5 mm).