THE ENTOMOLOGIST 



Vol. XLVIL] FEBRUARY, 1914. [No. 609 



A NEW SPECIES OF METANCEA FROM FRANCE. 



By Kenneth J. Morton, F.E.S. 



In examining a small lot of Trichoptera taken by Dr. 

 Chapman last summer in the Alps of Dauphine, forwarded by 

 Mr. Lucas, I found four insects, which at first sight I supposed 

 to be Metanoea flavijpennis, Pict. On confronting these, however, 

 with McLachlan's figures, I was surprised to find that the details 

 did not agree satisfactorily, and on looking over the material in 

 my collection it was manifest that there were two species, and 

 these rather distinct ones, mixed together, examples from 

 Murgtal (Ris), Silvaplana (Morton), and Carinthia (Klapalek), 

 pertaining to the species described and figured by McLachlan, 

 while others from the Val Bedretto (Ris) were evidently the same 

 as Dr. Chapman's. I asked Dr. Ris to go over his material, and 

 he confirms my view of the matter. The only explanation of 

 the oversight that can be offered is the identical general appear- 

 ance of the two species, and even with regard to the profile view 

 of the genitalia the similarity is rather remarkable. I propose 

 to describe this hitherto overlooked species as — 



Metanoea chapmani, n. sp. 



Very similar in appearance to H. flavipennis, Pict. Head, 

 thorax, palpi, legs, and under side of body testaceous, hairs golden ; 

 abdomea above darker. Basal joint of antennae and between the 

 posterior ocelli slightly fuscescent. Spines of legs black. 



Anterior wings narrow and elongate, pale yellowish, shining 

 neuration concolorous, pubescence of membrane dense, golden 

 Discoidal cell about the same length as its footstalk. Posterior 

 wings whitish, subhyaline with pale veins ; first apical cell variable, 

 but narrower at the base than second ; second broader, moderately 

 oblique at the base in the direction opposite to the first ; third 

 longer than first and second, almost acute at the base ; upper branch 

 of cubitus furcating about, or a little beyond the level of the 

 beginning of the discoidal cell. 



In the male the apex of the abdomen above is rather deeply 

 concave, the posterior margin covered with scattered black tubercles, 

 the side produced into rather long finger-shaped processes whose tips 



ENTOM. — FEBRUARY, 1914. E 



