Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 92. (Budapest 2000)

Ronkay, L.: Revision of the genus Lophoterges Hampson, 1906 (s. l.) (Lepidoptera: Noctuidae, Cuculliinae). Part I

strongly from those of 5. taiwana and 5. semialba in both sexes as the whole male clasping apparatus is considerably smaller with weaker, less elongate, more arcuate valva, finer, spine-like pollex-like extension, thicker, broadly triangular, apically pointed harpe; the aedeagus is also much shorter with considerably larger, serrate corsai plate of carina, the vesica is also shorter, finely twisted, only partly recurved and the terminal cornutus is shorter, weaker. The most conspicuous difference of the female genitalia between S.formosa and S. taiwana can be found in the shape of the cervix bursae which is twisted in S.formosa, its tip projecting caudally while it is arcuate, not twisted in S. taiwana. In addition, the dorsal plate of the ostium bursae of S.formosa is more rounded-discoidal, and the ductus bursae is shorter, proximally more tapering than in case of S. apocrypha. Description - wingspan 31-36 mm, length of forewing 14-16,5 mm. Male. Head and thorax ash-grey, mixed with brownish and a few whitish hairs. Lateral sides of palpi, frons, collar and tegulae marked with dark grey-brown. Antennae of both sexes filiform, collar producing large, peaked hood. Abdomen somewhat paler, more brownish, second segment with dark brown dorsal tuft. Forewing elongate, narrow, with apex finely pointed. Ground colour shining, pale ash-grey with fine bluish-violaceous shade and variably strong, dark greyish-brown irroration; scaling finely reticulate. Dark pattern rather indistinct, ante- and postmedial crosslines pale, fine, strongly sinuous, dark Figs 20-21. Genitalia of Speidelia formosa sp. n., paratypes, Taiwan: 20 = male, 21 = female