Calamotropha formosella Bleszynski, 1961

Li, Weichun & Li, Houhun, 2012, Review of the genus Calamotropha Zeller (Lepidoptera: Crambidae: Crambinae) from China, with descriptions of four new species, Journal of Natural History 46 (43 - 44), pp. 2639-2664 : 2654-2657

Calamotropha formosella Bleszynski, 1961

( Figures 3A , 4A and 5A )

Calamotropha formosella Bleszynski, 1961: 33 , figs. 18, 112.

Diagnosis

This species resembles C. okanoi Bleszynski, 1961 . It can be distinguished from the latter by the ductus bursae not conspicuously divided from the corpus bursae in the female genitalia, the apex of valva concave in C shape, and the vesica with a thornlike cornutus in the male genitalia. In C. okanoi , the ductus bursae is conspicuously divided from the corpus bursae, the valva is pointed distally, and the vesica bears a row of small spine-like cornuti.

Material examined

CHINA: 1 male, Diaoluoshan (18 ◦ 47 ′ N, 109 ◦ 52 ′ E), Lingshui , Hainan Province, 300 m, 10–15 August 2008, coll. Bingbing Hu and Li Zhang ; 1 female, Tongguling (19 ◦ 36 ′ N, 110 ◦ 45 ′ E), Wenchang , Hainan Province, 50 m, 18 July 2008, coll. Bingbing Hu and Li Zhang ; 1 male, Nam Chung, New Territories (22 ◦ 25 ′ N, 114 ◦ 10 ′ E), Hong Kong , 135–150 m, 18 April 2007, coll. Houhun Li et al.; 1 male, Kadoorie Farm and Botanic Garden, New Territories , Hong Kong , 210–455 m, 13–14 April 2007, coll. Houhun Li et al.; 1 male, Dalan Lack, Ho Chung, Sai Kung , New Territories , Hong Kong , 105 m, 24 September 2009, coll. Houhun Li et al.; 3 males, Sha Law Tung, Tai Po, New Territories , Hong Kong , 225 m, 16 September 2009, coll. Houhun Li et al.

Redescription

Adult ( Figure 3A ). Forewing length 7.0–9.0 mm. Frons and vertex white. Labial palpus white, orange yellow on outer surface. Maxillary palpus orange yellow, tip white. Antenna pale brown, orange yellow ventrally. Patagium white, orange yellow laterally. Thorax white. Tegula orange yellow. Forewing white, costa densely covered with blackish brown scales, forming a dark band, veins with scattered blackish brown scales; median fascia pale brown mixed with orange yellow, outcurved at about costal onethird, incurved at about dorsal two-fifths, with small blackish brown spot, outcurved near dorsum; cell with black spot near upper corner; subterminal fascia orange yellow, outcurved near middle; apex with triangular black stigma; terminal fascia black; cilia orange yellow mixed with pale brown. Hindwing white to pale brown; cilia yellowish white to orange yellow. Legs white, tarsi pale brown and white alternately on outer side; femora and tibiae of fore- and midlegs blackish brown on outer side.

Male genitalia

Uncus and gnathos long and thin, nearly equal in length, bluntly rounded apically ( Figure 4A ). Valva short and broad, apex concave in C shape; costa long and thin, slightly concave near base, convex medially. Pseudosaccus ovate. Vinculum broad basally, apically concave at middle. Phallus about twice as long as valva, straight; vesica with single thorn-like cornutus.

Female genitalia

Anal papilla ovate, nearly as long as apophysis posterioris ( Figure 5A ). Tergite eight about twice as long as apophysis anterioris. Antrum funnel-shaped, strongly sclerotized. Ductus bursae long and thin, not conspicuously differentiated from corpus bursae. Ductus seminalis arising from distal margin of antrum. Corpus bursae oval; signum absent.

Distribution

China (Hainan, Hong Kong, Taiwan).

Remarks

The female of this species is described for the first time.

Figures

Figure 3. Adults of Calamotropha spp.: (A) C. formosella Bleszynski, male; (B) C. josettae Bleszynski, female; (C) C. melli (Caradja and Meyrick), female; (D) C. latella (Snellen), male.

Figure 4. Male genitalia of Calamotropha spp.: (A) C. formosella Bleszynski; (B) C. josettae Bleszynski; (C) C. melli (Caradja and Meyrick) Scale bars: 0.5 mm.

Figure 5. Female genitalia of Calamotropha spp.: (A) C. formosella Bleszynski; (B) C. josettae Bleszynski; (C) C. melli (Caradja and Meyrick). Scale bars: 0.5 mm.