NEW BRITISH SPECIES IN 1855. 31 



Dosithea eburnata, Wocke. (Frontispiece, Fig. 4.) 



A very pretty little distinct species, something like a small 

 Immutaria, but paler and more distinctly marked, and the 

 middle striga precedes the central spot. 



Expands 10 lines. Anterior wings pale greyish, with 

 three wavy dark fuscous strigae, broadest on the costa; the 

 second striga just anterior to the central black spot; beyond 

 the third striga is a waved interrupted fuscous fascia, and a 

 fuscous cloud on the hinder margin. Posterior wings pale 

 greyish, with no basal striga, but with one in the middle 

 preceding the central black spot, and a hinder one followed 

 by a cloudy interrupted fascia. A row of fuscous dots along 

 all the hinder margins; cilia pale yellowish. 



I entertain very little doubt but that this is the Con- 

 tiguaria of Herrich-Schaffer, who gives as a synonym Hiib- 

 ner's figure 105, but with the remark " I never saw it so 

 large" — in which observation I perfectly agree, so that Hiib- 

 ner may have represented some species which has not yet 

 been re-discovered, I have therefore adopted the name under 

 which Wocke gave this insect in the Breslau " Zeitschrift fur 

 Entomologie," Lepidoptera, p. 48, pi. 4, fig. 13. 



Herrich-Schaffer says, that it " occurs in July, in the 

 North of France and North of Germany." 



The specimen I have before me is one of several taken 

 by Mr. Weaver in Wales last summer. 



Dosithea circuitaria, Hiibner. 



No good figure of this exists, but the specimen I have 

 before me was not sufficiently fine to render its portraiture 

 advisable. It is not closely allied to any of our known 

 species; size of Virgularla, with the ground colour of 

 Perochraria, or rather more reddish than that. 



Expands 8 lines. Dark ochreous, clouded with rusty, a 

 central black spot on each wing. Anterior wings with two 



