Disepholcia caerulea Butler, 1889

Trisuloides caerulea Butler, 1889, Illustrations of Typical Specimens of Lepidoptera Heterocera in the Collection of the British Museum 7: 5, 35, pl. 128, fig. 3, (TL: India, Himachal Pradesh, Dharmsala [ST: BMNH, London) = coerulea auct, nec, Butler, 1889; = caerula auct., nec, Butler, 1889.

Material eamined. 28 specimens from Nepal, Myanmar, Thailand, Vietnam, and China (collections AB, AP, GB, ZFMK, ZSM, NEFU).

Diagnosis. (Fig. 39). Disepholcia caerulea has a similar ground plan of forewing coloration and pattern as Trisuloides; externally it differs from Trisuloides by its larger size (wingspan 70–75 mm) and by having blackbrown with blue metallic hindwings, without yellow medial part and terminal band as in Trisuloides . The male genitalia of D. caerulea (Fig. 42) is generally similar to Trisuloides, but differs by shape of editum, which is more strongly sclerotised than in Trisuloides, seen as a long, finger-like extension and by the shape of harpe which is strongly sclerotised, finger-like, positioned transversally and slightly arched basally. The aedeagus of D. caerulea is long, relatively thin, with sclerotised carina; vesica simple, tubular. The female genitalia of D. caerulea (Fig. 70) differ by the presence of extremely large, strongly sclerotised antrum which is almost equal to corpus bursae in length, very short ductus bursae and presence of a postvaginal plate with two lateral extensions and small central bifurcate extension.

Distribution and biology. The genus occurs in North India, Nepal, Myanmar, Thailand, Vietnam, Malaysia, Indonesia, South and South-East China, including Taiwan Island.