140 0BSERV-4TI0NS ON TINEIXA. 



*OcJiromoIopis ictella, Hiibner. Of this conspicuous and 

 peculiar insect I received some larvae through the kindness 

 of Diaconus Scblager, whose personal acquaintance I had 

 had the pleasure of making the previous autumn at Stettin. 

 The genus Ochromolopis is placed by Frey between BedelUa 

 and Chauliodus ; by Staudinger between Anyhia and 

 Asijchna ; it comprises only one species, which can be in- 

 stantly recognized by the two slender longitudinal ochreous 

 streaks on the shining dark-grey anterior wings. 



From the descrijjtion that I made of the larva, I quote the 

 following : — 



Length 4J lines : whitish-green, dorsal and subdorsal lines 

 dull dark-green; spots black; head pale brown, posteriorly 

 blackish-brown ; second segment with a black plate behind ; 

 anal segment with a black plate. A smaller larva, described 

 at the same time, was more fusiform, greener (not whitish- 

 green), with the spots fuscous, with no subdoi-sal lines and 

 with the plate on the second segment divided in the centre 

 and dark greyish-green (not black), the anal plate dark gTcen. 

 The larva figured by Miss Wing agrees very closely with the 

 latter description, but has a rosy tinge over the green — it is 

 very probable that the green larvae assume a rosy tint before 

 changing to the pupa state. The food-plant is Thesium 

 montanum, the larva feeding in the terminal shoots about 

 the middle of May. Dr. Schlager collected the first larvs 

 May 13th, and my descriptions were written fjora some sub- 

 sequently sent, which reached me May 23rd. 



Having written to Dr. Schlager that I was unacquainted 

 with Thesium moniamnnj it not occurring with us, he re- 

 plied : — " In our country, especially on the chalky hills and 

 mountains, it occurs vei'y frequently, not everywhere, but in 

 lanes and the borders of woods ; not rarely in pine-woods. 

 It is a pretty plant and veiy much like the common fiax. 



