1913.] 263 



the right-hind leg, from Wood Walton Fen, Mr. Dadd, a collection of Cato- 

 calidie. Mr. Diirrant, in behalf of Mrs. W. C. Boyd, a series of specimens of 

 British Lepidoptera of great historical interest, which she is presenting to the 

 British Miiseiim. Mr. H. O. Holford, a specimen of Ccenomjmpha jmmphilus of 

 abnormally large size, and a ? of Ematurga aionia?-ra, almost withoiat markings. 

 Mr. D. Pearson, a drawer of butterflies taken this summer in the Tyrol. 



The following papers were read: — "Illustrations of Specific Differences in 

 the Saws of Female Dolerids," by Rev. F. D. Morice, M.A., F.E.S. " Additions 

 and Corrections to my List of the Bhopalocera of Trinidad (1904)," by 

 W. J. Kaye, F.E.S. " On the Urticating Propex-ties of Porthesia similis," by 

 H. Eltringham, M.A., F.E.S. — Geo. Wheeler, Hon. Secretary. 



ON A NEW SPECIES OF MELANOTHRIPS (THYSANOPTEEA) 

 FEOM TUNISIA. 



BY RICHARD S. BAGNALL, F.L.S. 



{Hope Department of Zoology, University Museum, Oxford.) 



Melanothrips nigricornis, sp. n. 



This species is so closely related to M.fuscu.'< (Sulz.) that a separate 

 description is unnecessary. It is of a deeper brownish-black colour 

 and has the antennae uuicolorous in both sexes. The colour of the 

 fore-wings is also slightly darker than in fuse us and is continued to 

 the extreme base. 



The antennae are more slender and the basal two-thirds of the 

 outer margin of the third joint is distinctly sinuate; joint 4 is 

 distinctly longer than either 3 or 6 in the (^ as well as in the ? , 

 and 8 is not so noticeably shorter than 7 or 9 as iafuscns. 



The spines on head, prothorax, wing-veins and tibia, are darker, 

 apparently stronger, and more noticeable than in fuscus, and the hind 

 tibia in both sexes is without the outstanding hairs on the outer 

 margin near base, seen in fusciis. 



Tijije : Hope Collections, University Museum, Oxford. 



Hah. : Both sexes taken by Mr. P. A. Buxton in the flowers of a 

 Convolvulus (? C. tricolor) at Djebel Achkel, N.E. Tunisia, 27-iii-1913. 

 I detected this form in a collection submitted by Mr. Buxton to 

 Mr. C. B. Williams, who has kindly made preparations of both sexes 

 and allowed me to describe the species. 



The follomng is a table of the known living species : — 

 1. Fore-wings with two broad white cross-bands, an- * 



tennal joints 2 — 4 light yellow... M. ficalbii, Buffa — Italy (Buffa), 



England (R.S.B.)* 



