80 CIRR(EDIA XERAMPELINA. 



The spiracular stripe is a pale freckled brownish- 

 grey, edged above by a black line; the spiracles dirty 

 whitish, outlined with grey, and inconspicuous. The 

 belly and legs a slightly mottled greenish-grey. 



When full-grown, the broad dorsal stripe of dirty 

 whitish appears faintly continuous, and widest in the 

 middle of each segment, and margined at each seg- 

 mental division before and behind with stout thick 

 black curves. 



On the anal extremity a thick cruciform black 

 mark. 



Its perfect assimilation to the crevices in the bark 

 of ash trees accounts partly for its remaining so long 

 undiscovered, or at least undescribed, in this country. 

 (W. B., E.M.M., IV, 136, November, 1867.) 



Tethea retdsa. 

 Plate LXXXV, fig. 5. 



I believe this species is not yet considered to be 

 common, so perhaps it may not be uninteresting to 

 state that we take it here [Exeter] in some seasons, by 

 searching for the larvaB in the folded leaves and shoots 

 of various kinds of sallows, about the end of May and 

 beginning of June. At that time of the year, indeed, 

 numbers of common larvse are to be found in this 

 way, such as Tmniocampa stabilis, T. cruda, Orthosia 

 lota, Oosmia trapezina, Epunda viminalis, occasionally 

 Oerastis vaccinii and G. spadicea (these two probably 

 hiding in leaves spun together by other species), and 

 always Hypsipetes elutaria and Cheimatobia brumata, 

 as well as some of the Tortrices ; but the only larva 

 with which T. return is likely to be confounded is 

 that of E. viminalis ; I have therefore described the 

 former rather fully, and pointed out the characters 

 which distinguish it from the latter. 



Tethea retusa, when full-grown, is about an inch in 

 length, tapering slightly towards each end, and flat 



