Edosa subochraceella

Yang, Linlin, Wang, Shuxia & Li, Houhun, 2014, A taxonomic revision of the genus Edosa Walker, 1886 from China (Lepidoptera, Tineidae, Perissomasticinae), Zootaxa 3777 (1), pp. 1-102 : 13

The subochraceella -group

Diagnostic characters. This group is characterized by the vinculum ventrocaudal margin without medial process, the uncus with shouldered base touching each other, forming a small membraneous section with the tegumen, the uncus lobe twisted basally, strongly contorted and with a small melanized nodule on inner side distally, the triangular valva without basal flange, the flat juxta angled caudally, the short and stout aedeagus with outer wall forming slender carinae subapically, the bulbus ejaculatorius>5.0× length of the aedeagus, its subdistal and distal sections hypertrophied in the male genitalia; the eighth sternite with a pair of small processes posteriorly, and the colliculum comprising a series of five rings in the female genitalia.

Remarks. Species in this group are similar in the male genitalia, especially in the aedeagus, but can be differentiated from each other by the differently shaped structures of the valva. The females are difficult to identify by genital structures, though small differences can be seen in the eighth sternite. Female associated with male in this group is judged by the forewing color and the collection locality.

Five Chinese species are included in this group, including three new species and one newly recorded species. Edosa williamsonella Robinson, 2008 and E. witherspoonella Robinson, 2008 from Sundaland that are similar to the five Chinese species apparently belong to this group. Edosa andersonella Robinson, 2008 , E. alanpricella Robinson, 2008 , E. screaminjayella Robinson, 2008 , E. troutella Robinson, 2008 , E. vinsonella Robinson, 2008 , E. walterella Robinson, 2008 and E. watersella Robinson, 2008 from Sundaland may belong to this group according to Robinson’s (2008a) descriptions, illustrations and phylogenetic analysis; E. purpurascens ( Diakonoff, 1967) from Philippines also should be included in this group according to Diakonoff’s (1967) descriptions and illustrations. Further confirmation is required by the identification of females of these species.

The African leucastis -group proposed by Gozmány and Vári (1973) as well as the lardatella -complex revised by Robinson (1985b) are very close to this group except for the pure white forewing, the twisted uncus lobes not contorted distally and the much slender aedeagus. The lardatella -complex might be included in the leucastis -group with further study. More details about the relationship between them can be found in Robinson (1985b).