STUDIES IN THE FOSSORIAL WASPS. 717 



Ells (Mesa) rotiikeyi Cam. 



Alyzine rothneyi Cam. Ann. & Mag. Nat. Hist. (7) x. p. 88 

 (1902),$. 



2 . This fine species is easily distinguished, being black with 

 ferruginous legs ; the wings f usco-hyaJine, flushed with purple. 

 The sixth dorsal segment is coarsely punctxu-ed, the punctiues 

 tending to become confluent longitudinally towai'ds the apex. 

 Head and thorax very coarsely punctured, rugose on the 

 pronotum. 



Hah. Khasi Hills, Assam. 



Elis (Mesa) fuscipennis Sm. 



Myzine fitscipenoiis Sm. Cat. Hym. B. M. iii. p. 72 (1855), $ ; 

 Bingh. Fauna Brit. India, Hymen, i. p. 67 (1897), 2 • 



2 . This species may be distinguished from the female of 

 2?etiolata Sm., which it closely resembles, by the sharply margined 

 median segment, the posterior slope of which is abi'upt and steep, 

 not gradual as in petiolata. The colour is black ; the calcai'ia 

 whitish, mandibles fusco-ferruginous, wings fuscous. The spines 

 on the outer margin of the hind tibiae are black in fuscipennis, 

 whitish in petiolata. 



Length 12 mm. 



JIab. India. 



The type is unique in the British Museum collection and was 

 obtained from Shuckard in exchange, so that the locality is 

 uncertain. Bingham's description is taken from the type, but 

 he evidently confused the species with ^;e^/o/ato, a specimen of 

 which is labelled fuscipennis by him in the British Museum 

 collection. I have not seen the specimens he records from 

 Burma, but consider it very doubtful if they belong to this 

 species. 



Elis (Mesa) petiolata Sm. 



Myzine fetiolata Sm. Oat. Hym. B. M. iii. p. 72 (1855), J • 

 Myzine ceylonica Cam. Ann. & Mag. Nat. Hist. (7) v. p. 18 

 (1900), $. 



riesia {Mesa) petiolata Turn. Ann. & Mag. Nat. Hist. (8) i. 

 p. 512 (1908), 6 2 . 



2 . Differs from fioscipennis Sm. in the absence of a distinct 

 margin separating the dorsal surface of the median segment 

 from the sui-face of the posterior slope and in the white spines of 

 the hind tibiae. From claripennis Bingh. it diflfers in the fuscous 

 colour of the wings, the somewhat coarser puncturation, and the 

 lesser length of the second abscissa of the radius, which is only 

 about half as long as the third in petiolata and almost or quite as 

 long as the third in clarijjennis. In fuscipennis the second 

 abscissa of the radius is shorter than in petiolata, being distinctly 

 les.s than half as long as the third. 



