266 PAPERS BY DR. B. CLEMENS. 



ning through the middle of the wing, from the base and along 

 the apical margin to the tip. Near the basal third of the 

 wing on the dorsal edge of the whitish stripe is an elongate, 

 blackish-brown spot, and from the middle of the wing, towards 

 the tip, it is edged on its costal side by a blackish-brown line, 

 which contains sometimes a spot of the same hue. The apical 

 portion of the stripe is more freely dusted with fuscous than 

 the other portions. Cilia fuscous. Hind-wings fuscous, cilia 

 paler. 



Antennae dark fuscous, without white annulations, except 

 near the tip. Head fuscous above, face white. Labial palpi 

 dark fuscous ; second joint with a white ring at the extreme 

 tip, sometimes white at the base, with a broad fuscous ring 

 near the tip ; terminal joint fuscous, with a more or less dis- 

 tinct whitish central ring and the extreme tip whitish. 



This is a very interesting " Micro," not only in conse- 

 quence of the specific resemblance it bears to the European 

 Batrachedra praangusta, but of the discovery of its larva by 

 one of our most gifted and promising Entomologists, Mr. Benj. 

 D. Walsh, of Eock Island, 111. 



In the note which accompanied the perfect insects, Mr. Walsh 

 writes : " I enclose herewith several specimens of a moth, bred 

 from the Tenthredinidous gaU, Salicis pomum, Walsh, MS., 

 and a single one from the Cecidomyidous gall, S. rhodoides, 

 Walsh. This is the insect that I think I mentioned to you 

 as being very prettily marked in the larva state, each segment 

 having a broad, black band and the ground colour being 

 whitish. I had a single one come out last summer, but the 

 great bulk of them hybernated either in larva or pupa state 

 and came out May 8th 20th. They vary but little. I have 

 beaten larva? of very similar appearance off oak trees." 



So far as I am informed, the larva is unknown to European 

 Lepidopterists, although it is recorded that the perfect insect, 

 pr&angusta, is very common among willows and poplars in 

 July, and may frequently be observed sitting on the trunks 

 of those trees with the anterior feet put back like Bedellia, 

 and the head raised a little. 



Mr. Walsh has the honour of having made an interesting 



