Rhopalovalva rhombea Zhang & Li

Zhang, Aihuan & Li, Houhun, 2010, Two new species of Rhopalovalva Kuznetsov (Lepidoptera: Tortricidae) from China, Zootaxa 2718, pp. 64-68 : 65-67

Rhopalovalva rhombea Zhang & Li , sp. nov.

Figs. 1, 3–4

Diagnosis. This species is superficially similar to R. grapholitana (Caradja) , but it can be distinguished by the rhomboid cucullus without a ventral process and the socius broadening distally in the male genitalia; and the corpus bursae elliptical and the signa long-horned in the female genitalia. In Rhopalovalva grapholitana , the cucullus is elliptical with a ventral process, and the socius is slightly narrowed distally; the corpus bursae is round and the signa are conical.

Description ( Fig. 1 ). Head: Vertex with grayish yellow scales tufted between antennae; frons white. Antenna light yellow. Labial palpus gray; second segment with light brown termination; third segment porrect, concealed in the long scales of second segment. Thorax: Nota and tegula grayish yellow. Legs gray, with brown scales on tibiae and tarsi. Forewing length 7.0 mm; forewing elongate triangular; ground color grayish yellow, sprinkled with brown spots; apex protruded, falcate; termen concave below apex; basal fascia and subbasal fascia forming a dark brown basal patch, extending from costal 1/4 to 1/3 of dorsum, protruded in middle on outer side; median fascia degenerated to a short brown streak on costa; tornus with an elliptic gray spot; ocellus small, grayish yellow; costa with nine pairs of white strigulae from base to apex; strigulae 1–4 between base and the point where Sc meets costa; strigulae 5 and 6 between Sc and R1 points, each containing only one stria; distal three pairs distributed between pairs of veins R1–R2, R2–R3, R3–R4, respectively. Fringe grayish yellow, with brown subbasal line. Hindwing and fringe grey. Abdomen: Male genitalia ( Fig. 3 ) with tegumen bearing a pair of long sclerites on top. Uncus club-shaped, narrowed distally, ca. half length of socius. Socius long, broadening to termination, ca. 2.0 times length of uncus, hairy. Valva broad at base; neck distinct; the distal end of sacculus with a broad hairy, rounded lobe directed dorsad; cucullus somewhat rhomboid, hairy. Aedeagus slender, curved in distal 1/3, abruptly narrowed in distal 1/6, forming a pointed apex; cornuti undetected. Female genitalia ( Fig. 4 ) with papillae anales broad, short, hairy; apophyses posteriores slightly shorter than apophyses anteriores; 7th sternite broadly sclerotized. Ductus bursae slender; antrum very short. Corpus bursae elliptical; two slender, horn-shaped signa of different size.

Holotype. Male, CHINA: Fujian Province: Mt. Wuyi (26.54˚N, 116.42˚E), 1100 m, 23.v. 2004 (Haili Yu), genitalia slide no. YHL03482.

Paratypes. 1 female, CHINA: Fujian Province: Mt. Wuyi, 740 m, 19.v.2004 (Haili Yu), genitalia slide no. ZAH04317; 1 male, Guangxi Province: Jinxiu County, 550 m, 15.iv.2002 (Shulian Hao & Huaijun Xue); 1 male, Fujian Province: Yongtai County, 550 m, 18.ix.2002 (Xinpu Wang).

Etymology. The specific name is derived from the Latin rhombeus = rhombiod, referring to the shape of cucullus.

Figures

FIGURES 1 – 5. Adults and genitalia of Rhopalovalva spp. 1, 3, 4. Rhopalovalva rhombea sp. nov. (slide no. YHL 03482, 3; ZAH 04317, Ƥ); 2, 5. Rhopalovalva triangulata sp. nov. (slide no. ZAH 04094, 3)