1885.] ^^ 



not. All tlie authors since 1846 have followed Zeller, and Mr. Stain- 

 ton, who probably had no opportunity of seeing a real hostilis, Steph., 

 described under this name an adelphclla, E. v. E., received from Zeller. 

 In this he was followed by von Heinemann. 



Considerable confusion has existed with regard to this species 

 and its nearest ally, rhenella, Zk., in Germany. Both belong to the 

 genus 7V^e^97^o^^ery^(Hb.),Z., the maxillary palpi of the male bemg 

 filiform; whilst those of adelphella,Y±Q 2.\\ the species of Fempelia, 

 Z., have a long yellow pencil-like tuft enclosed in a groove in the 

 labial palpi. 



Bhenella, Zk., was first described by Hiibner (fig. 70, text page 

 35) under the name of pahmbella, but as this name had already been 

 employed by Schiffermuller and Denis for a Phycid, Zincken was 

 obliged to change the name, giving that of rhenella, which name was 

 accepted by Hiibner, who quotes it as rhenalis in his catalogue. 



Treitschke followed Zincken, but tbe description which he gives 

 of the larva applies to that of adelphella. 



Duponchel (pi. 280, fig. la) figures and describes rhenella, Lk.. 

 but he figures (fig. II) as a variety another Phycid, to which I have 

 given the name of AcroUsis Fallouella in the " Petites Nouvelles En- 

 tomologiques " of 1871, p. 147. 



Eischer von Eoslerstamm describes and figures the true rhenella, 

 but says nothing of the larva, only remarking that the description 

 given by Treitschke belongs to adelphella. 



Zeller in 1846, describes also rhenella, Tik. 



Herricb-Schaffer, after describing rhenella, figures and describes 

 as a variety the narrow-winged species which is hostihs, Steph. 



Yon Heinemann, taking Herrich.Schaffer's figure of rhenella^. 

 the type, describes hostUis, Steph., under the name oirhenella, adding 

 that the larva feeds on Fopulus treuula. Mr. Snellen follows von 

 Heinemann for this insect. -r^ t,i j +1,0 



Stephens published a rl.neUa, but, according to Doubleday, the 

 species is referable to ud.enella ; the figure in " Wood is not recog- 



''''''''Lnem, Zk., very n,neh resembles Usms, b"* J J-W^ 

 broader.winged ; the ground colour is of a much P-J -d^pa e' grey 

 and the band before the first line much broader and blacker, thu 

 forming a greater contrast than in the sombre ookmg hosUUs^ The 

 dfflerences between the larva, are striking; that of rhenella being 



i?::;^, tinted .ith -pf-^-^riirrof^rsr;::; 

 s:rpra=s^^:"r;x:rrsegment .th . .... 



