462 Mr. G. 'Meacle-Waklo on 



As Prof. Cockerell rightly remarks (/. c. p. 309), Smith's 

 -descriptions, though good for the time when tliey were 

 written, are inadequate for modern requirements, since the 

 number of described species has so vastly increased. 



The types of all the new species here described are in the 

 British Museum. 



My best thanks are due to Professor Poulton, F.R.S., for 

 the loan of Wallace's Malayan Megachile described by 

 F. Smith, the types of which are in the Hope Department of 

 the Oxford University Museum. 



Eriades, Spin. 

 Eriades rugifrons, Smith. 



This species was described as Chelostoma rugifrons (Catal. 

 Hymen. Brit. Mus. ii. p. 220, 1854) from Georgia, U.S.A. 



In his description Smith makes no mention of the clypeus, 

 which is very similar to that of Megachile subgenus Eu- 

 megachile : i. e., very short, much broader than long, broadly 

 emarginate, and laterally provided with blunt tubercles. The 

 length given (5 lines) is an underestimate, the correct 

 length is 13 mm. The insect has a superficial resemblance 

 to E. grandis, Mor.^ the form of the clypeus being very 

 similar. 



OsMiA, Panz. 



There are but few types of this genus in the British 

 Museum collection. Smith described three species from 

 the Angara River, Siberia, which may be separated as 

 follows : — 



1. jLegs entirely black, robust insect. L. 11 mm. ephippiata. 

 I Legs partially ferruginous, more slender insects. 2. 

 Legs ferruginous (coxfB and trochanters black), 

 thorax clothed with fulvous pubescence, 

 abdominal tergites with lateral fasciae of 

 pale pubescence, scopa pale fulvous. L. 9 mm. rubripes. 

 "^ Tarsi ferruginous, thorax clothed with black 

 pubescence, abdominal tergites with lateral 

 fasciae of rich golden pubescence, scopa 

 golden. L. 13 mm rujitartis. 



O, ephippiata is a Melanosmia, Schmied., very near 

 O. pilicornis, Sm., but with the abdomen wholly black- 

 haired. The vertex and thorax are clothed with ochraceous 

 pubescence {teste Smith's original description), not reddish 

 yellow (rotgelb) as stated by Friese (* Das Tierreich/ Lief. 28, 

 p. 130). 



