Pseudacroclita mastoidea Zhang, 2018

Zhang, Aihuan, 2018, Synopsis of Pseudacroclita Oku from China, with descriptions of two new species (Lepidoptera: Tortricidae), Zootaxa 4379 (2), pp. 295-300 : 297

2. Pseudacroclita mastoidea Zhang , sp. nov.

( Figs. 2, 4 )

Diagnosis. This species can be easily differentiated from all other species of Pseudacroclita by the nearly semicircular cucullus and the presence of two non-deciduous cornuti in the phallus in male genitalia. In other species the cucullus is triangular or ovoid and there is a bundle of spiculate deciduous cornuti in the phallus.

Description. Adult ( Fig. 2 ). Head: Vertex with brown scales, frons brown. Antenna brown. Labial palpus brown, inner margin white; third segment short, porrect, with basal part concealed in the scales of second segment. Thorax: Dorsum and tegula grayish brown. Legs gray, with brown scales on tibiae and tarsi. Forewing length 5.0– 5.5 mm, ground color light brown, scattered with some silvery scales; apex fulvous and falcate; termen concave; costa with seven pairs of silvery strigulae; basal four pairs located from base to about 1/3 of costa; other three pairs confluent with each other and extending to termen, seventh composed of one short streak extending from apex and confluent with fifth and sixth strigulae; a black fascia extending from costal 1/4 toward, but not reaching, dorsum; ocellar patch silvery gray, elongate, outer margin serrate and fulvous; cilia yellowish-brown with brown basal line. Hindwing and cilia gray. Abdomen: Male genitalia ( Fig. 4 ) with uncus rudimentary; socius broadly ovoid, hairy. Valva with cucullus larger than sacculus, with distinct neck; sacculus angle produced into a very small papillary process, setose; cucullus nearly semicircular, hairy, with a slender spine on ventral angle (lost in fig. 4). Phallus broad, tapering distally; vesica with two non-deciduous spiculate cornuti.

Holotype. Male, CHINA: Guangxi Zhuang Autonomous Region, Wuming County, Damingshan , 29.13˚N, 95.18˚E, 1250 m, 27 May 2011, L. Yang & Y. Mu, genitalia slide no. ZAH14055.

Paratypes. 16♂, same locality as holotype, 21–29 May 2011, genitalia slide no. ZAH15059.

Distribution. China (Guangxi).

Etymology. The specific name is derived from the Latin mastoideus, referring to the sacculus angle produced into a small papillary process.

Remarks. The non-deciduous spiculate cornuti in the phallus are first reported in Pseudacroclita .

Figures

FIGURES 1–5. Pseudacroclita spp. 1. Adult of P. damingshana, sp. nov., holotype; 2. Adult of P. mastoidea, sp. nov., holotype; 3. Male genitalia of P.damingshana, sp. nov., slide no. ZAH14027; 4. Male genitalia of P.mastoidea, sp. nov., slide no. ZAH14055; 5. Female genitalia of P.damingshana, sp. nov., slide no. ZAH14028(Scale bars:1, 2 = 5 mm; 3–5 = 0.2 mm)