( 411 ) 



Zygaenopsis. 



Zygaenopsis Swinhoe, Cat. Lep. Het. Q.rf. I. p. 61 (1891) (type : J'ltsci- 

 marghialis). 



Zi/gaenosia Hampson, I.e. p. 423 (190(J) (nom. iiov. loco Zi/gaenopsis). 



Fekler's name Zyqaenopsis proposed for an American insect lias remained a 

 iwmen indescriptum. As we do not accept undefined names as valid zoological 

 terms, the word Zygaenopsis as a generic term dates for ns only from 1891, when 

 Swinhoe gave a good definition of what he meant it to designate. 



In Hampson's definition of the genns. I.e., a slight oversiglit occnrs, vein 

 SC of the forewing being said to branch off after SC\ This is only true of some 

 individuals of Z. jiavibasis, while in the typical s-pecies /'it.scim(irgi>ial/s, of the 

 nenration of which Swinhoe gave a correct diagram, as well as in other individuals 

 oi ^fiacibasis and all the species described below, vein SC^ branches off before SC^. 

 In Swinhoe's diagram oi Jfacibasis SC^ and SC° come from a point ; this we find 

 to be the case in quite a number of our examples, ./(((•/^''(avjs being one of those 

 numerous LitJiosiinae in which the position of the distal branches of the veins 

 is fluctuating. 



0. Zygaenopsis fuscimarginalis. 



Z.fiiscimarginalis Swinhoe, l.e. (1891) (Dorey). 



Zygaenoiiin fuscimargi iialis Hampson, l.r. p. 424 t. 35 p. 9 ri900). 



We have one pair of this species from Kapaur, Dutch N. Guinea, caught 

 by Doherty in December 1896 and in February 1897. Of these the ? is the larger ; 

 it has the hind wing more elongate than the c?, the hyaline patch of the same .just 

 indicated in and before the cell, and the first antennal segment, face, legs, and the 

 underside of the body lateous. In the J the hindwing has a large hyaline 

 patch, as described by Swinhoe in the type ?, the face is fuscous, but the legs are 

 lateous. 



7. Zygaenopsis fumosa sp. nov. 



c? ? . Body above black, underside blackish or more or less yellow. Wings 

 uniformly smoky black, slightly transparent, with an olivaceous brown tint. 

 Clasper {6) sinuate, lobes short, lower lobe narrow, triangular, not acute, upper 

 one broad, rounded. 



a. Z. fumosa fumosa. 



cJ S. Underside of body and legs dirty wood brown, smoky black where the 

 scaling is intact. 



Length of forewing : 9 to 11 mm. 



Ihb. Suer, Mefor, Geelvink Bay, May— June 1897 (W. Doherty), 7 cj J, I ?. 

 Tlie ? without abdomen ; ti/pe : c?. 



b. Z. fumosa flaviventris snbsp. nov. 



c?. Abdomen beneath, clasper excepted, ochre yellow. 



Length of forewing : 1 1 i mm. 



Hub. Biak, Geelvink Bay (W. Doherty), 1 S. 



