1885.] 27 



sodaleUa is olivaceous greyish-brown, with six longitudinal interrupted 

 whitish lines ; head yellowish, covered with numerous irregular black 

 lines and bordered with blackish. Second segment with a shining 

 black plate, divided in the middle by a pale line and twice notched in 

 front, a small black spot on each side beneath. Third segment with 

 a small black raised spot. The ordinary spots are very small, black, 

 surrounded with white ; a small blackish plate on the anal segment. 

 Fore-legs black. This description is taken from a well-preserved larva 

 submitted to me by Herr Eppelsheim with one of consociella. The 

 ground colour of the latter is very pale greenish-grey, with five longi- 

 tudinal dark lines, the feet concolorous ; second segment with an 

 indistinct concolorous plate, spotted with black ; the head entirely 

 yellowish. Until we can obtain more positive information about 

 sodalella, 7i., I must consider it distinct from consociella, Hb. 



Acrohasis ticmidella, Zk., and ruhrofihiella, ¥. v. E. — The synonymy 

 of these two species is very perplexing. 



In the Wiener Yerzeichniss we find, page 130 : — " 19. Lichtgrauer 

 W. (Wickler) mit zwei rothlichen Schwulsten. T. Tumidana.'' 



Hiibner figured under the name of verricceUa (fig. 73) an insect 

 which has certainly more the appearance of tumidella, Zk., than of 

 ruhrotihiella, but in his " Text," page 35, describing the insect under 

 the name of " "Warzentragende Schabe ; Tin. verrucella,'' he says most 

 distinctly that the first line has a reddish wart-like elevation, " die 

 innere (Streif) welcher den ockergelben Eaum schliesst, ist schwarz, 

 hat an sich rothliche warzenformige Erhohungen." . . . 



When figuring and describing the insect, he was under the im- 

 pression that it was the verrucella of the Vienna Catalogue, but having 

 learnt that the latter was not the Phycid, and that his verrucella was 

 the tumidana, S.Y., in his Catalogue he changed the name of tmnidana 

 into tumidalis, quoting his verrucella as a synonym. 



Zincken, who wrote two years later, was not certain that the 

 species he described under the name of tumidella was the tmnidana of 

 the Vienna Catalogue, though he quotes Hiibner's verrucella as a 

 synonym ; he imposed the name of tumidella not for the sake of the 

 termination in "" ella^' but as a " new name to prevent confusion with 

 tumidana, S.V. ;" and as he does not speak of the warty band on the 

 the first line, his insect is clearly different from that of the Vienna 

 Catalogue, as well as from Hiibner's verrucella. 



Treitschke describes tumidella, Zk., following Zincken for the 

 synonymy and description of the larva, so that, as he does not mention 

 the raised scales, the description can only apply to tumidella, Zk.^ 



