34 [February, 



132 — 3 (1851), and gave a shorter description in the Manual, ii, 343 

 (1859), agreeing with his previous one. Thanks to Mr. P. B. Mason's 

 kindness, I have examined in the Douglas collection the original type 

 specimen of immaculatella, which bears on its pin a printed ticket 

 " 74," the meaning of which is unknown to me, and another ticket 

 which reads " 1484," and is explained bx' Mr. Douglas' diary to mean 

 that he took the moth in West Wickham Wood on August 11th, 

 1849. The type is without doubt an undersized male specimen {alar, 

 exp. 105 mm.) of AvistoteUa icnicolorella, and agrees with this species 

 in es'evy respect. To my eye, it is neither " blue-black," as stated by 

 Douglas, nor "fuscous-black," as afErmed by Stainton, but somewhat 

 pale, shining bronzy, greyish-fuscous. Douglas was right in saying 

 (/. c.) that there are no spots on the fore-wings, and Stainton, who 

 describes them as each having two dark spots, was misled by an 

 appearance of spots which is merely due to folds in the wings. 



In after years Stainton determined a few obscure specimens as 

 immacidatella, and returned others as probably referable to this species, 

 but none of either class that I have seen, which include the individual 

 bred by Threlfall from among roots of sea-plantain (Ent. Mo. Mag., 

 XV, 89), and one in the Stainton continental collection, bred by Frey 

 from Lotus cornicuJatus in May, 1857, and labelled by Stainton as 

 '^ Iimnaculatella, Dgl.," are conspecific with Douglas' type. Meyrick, 

 HB. Br. Lep., 582 (1895), enters immaculateUa, Dgl., as perhaps 

 identical with anthyllidella, Hb., but the correct synonymy, as worked 

 out by Mr. Durrant and myself, so as to include all the more import- 

 ant references, will be as follows : — 



ArISTOTELIA UNICOLOnELIiA, Dp. 



n. synn. = unicolorella, H.-S., = immaculateUa, Dgl. 



Lita unicolorella [Z. MS.], Dp., II. N. Lep. France, Sppl. iv, i58-9, PI. 85, S (1S42).1 



= Butalis unicolorella, Dp., Cat. Meth. Lep. Eur., 342 (1846). 2 



= Oelechia tetiehrella, Dgl., Tr. Ent. Soc. Lond., N. S., i, 16, No. 47 (partim) 



(1850) ;3 Stn., I. B. Lep. Tin., 131, No. 70 (partim) (1854) ;4 Man. ii, 342 



{partim) (1859) .5 

 = Oelechia immaculateUa, Dgl., Tr. Ent. Soc. Lond., N. S., i, 67, No. 78 (1850) ;t5 



Stn., I. B. Lep. Tin., 132-3, No. 76 (1854) ;T Man. ii, 343 (1859).8 

 = Anaeampsis unicolorella, H.-S., Schm. Eur., v, 196, No. 526 (1854).9 

 =: Gelechia unicolorella, Frey, Tin. ii. Pier. Scliweiz, 124, No. 49 (1856) ;10 Lep. 



Schweiz, 368 (lS80).ll 

 = Lamprotes unicolorella, Hein., Sclini. Deutsch. Tin., 310, No. 463 (1870) ;12 Stgr. 



