634 LORD WALSINGHAM ON THE [NoV. 17, 



Trichostibas SORDIDATA, Z. 



Trichostibas sordidata, Z. Hor. Soc. Ent. Ross. xiii. pp. 233-4 

 (1877). 



West Indies — Portorico {Z,). 



Trichostibas ? iophlebia, Z. 



Trichostibas iophlebia, Z. Hor. Soc. Eat. Ross. xiii. pp. 228-9, 

 pi. iii. fig. 69 (1877). 



West Indies— Antilles {Z.). 



If the ncuiation, which is partly givea iu the figure, is correct, 

 this species cannot be a IVicJiostibas, but must be allied to Cydosia 

 nobilitella, Cram., the type of Sjnith's Ci/dosiince, which would 

 necessitate its removal from the Tineidce. 



AuxiMOBAsis, gen. uov. 

 (av|?/ios = promoting growth; /3a(ns = the base.) 



Type, c? 2 Auximobasis persimileUa,W\sni. 



Antennte with the basal joint enlarged, flattened, not notched, 

 with a small pecten iu front. 



Maxillary palpi small. 



Labial falpi smooth, recurved to the top of the head ; apical 

 joint slender, more than half the length of the second joint. 



Haustellum scaled. 



Head smooth. 



Tliorax stout, smooth. 



Fore wiiujs elongate, lanceolate, slightly rounded at the apex, 

 costal margin nearly straight, dorsal margin bulged at the base, 

 straight beyond. Neuraiion : 12 veins; 2, 3, and 4 very short ; 7 and 

 8 form a common stem to above apex. 



Hind wings nearly as wide as the fore wings ; lanceolate, taper- 

 ing outwards, widest at the abdominal margin ; cilia long. Neura- 

 tion : 8 veins ; 3 from the lower angle of cell, 4 and 5 forked out 

 of 3 from near its base ; ti and 7 separate. 



Legs : hind tibiae densely clothed. 



AuxiMOBASis PERSIMILEL.LA, sp. n. (Plate XLI. fig. 9, a-c). 



Antennce cinereous, basal joint hoary. 



Palpi cinereous, stained with fuscous externally nearly to the 

 apex of the second joint. 



Head hoary cinereous. 



Thorax hoary cinereous. 



Fore wings hoary cinereous, sprinkled with fuscous scales ; an ill- 

 defined slightly outcurved fuscous band scarcely before the middle 

 of the wing from the costal to the dorsal margin ; a pair of fuscous 



