474 Mv. W. Warren on new 



LVIII. — Descriptions of some 7iew Genera q/Pyralidge. 

 Bj W. Wa'reen, M.A., F.E.S. 



In the course of rearrangement of the collection of Pyralidse 

 in the British Museum the formation of many new genera 

 was found to be a matter of necessity. Three only of these, 

 ThUptoceras^ Eurycrasj^eda, and Callina'ias^ have as yet been 

 published, and will be found in Col. Swinhoe's paper in the 

 Trans. Ent. Soc. for 1890. In view of the a])proaching publi- 

 cation of a new volume of the ' Illustrations of Typical 

 Specimens of Lepidoptera Heterocera in the Collection of the 

 British Museum,' it has now become necessary to expedite 

 the appearance of the descriptions of a few more of these new 

 genera, to which reference will have to be made in the forth- 

 coming work, and these (nineteen in number) are herewith 

 characterized. Diagnoses of the remainder will be published 

 at the earliest opportunity. 



Parasarama. 



In point of structure, markings, and general appearance 

 identical with Sarama, Moore; distinguished at once by the 

 absence of the antennal processes which occur in the males 

 of that genus. 



Type F. cuproviridalis $ , Moore [Locastra, M.)^^Locas- 

 tra margarita ^ , Butler. 



Opsibotys. 



In place of the old generic term Botys — the original type of 

 which is the Geometer now known as Lythria purpuraria — 

 it is proposed to substitute the term Opsibotys (i. e. Botys in 

 appearance) for all those species of Lederer's first division, 

 viz. those with porrect, rostriform, labial palpi, which are left 

 when all other separable genera have been removed. 



Type O.fuscalis, Schitf. [Pyralis). 



Ehectothyeis. 



Superficially very much like Lederer's genus Trithyris ; 

 distinguished by entirely ditferent labial palpi. In Rliecto- 

 thyris these are shortly rostriform, porrect, while in Trithyris, 

 Led., they are upcurved close in front of the face. Fore 

 wings very elongate, being four times as long as broad, with 

 the hind margin very oblique and slightly bulging in the 

 middle ; wings crossed by two broken hyaline fasciae. 



Type B. (jratiosaUs, Wlk. {Samea?). 



