198 MESSRS. T. BLACKBURN AND P. CAMERON ON THE 



F. Smith, I. c. iv. p. 421 {Crabro unicolor and C. distinot^is and Mimesa 

 antennata). 



Holmgren, Eugenics Eesa, Zool. ri. pp. 406 & 441 [Echthromorplia maculi- 

 pennis and Bhynchium nigripenne = Odynerus onaurtcs, Smith). 



F. Smith, " Descriptions of New Species of Aculeate Hymen op tera col- 

 lected by the Rev. Thomas Blackburn in the Sandwich Islands," Proc. 

 Linn. Soc. xiv. pp. 674-685 ; also described in his 'Description of 

 New Species of Hj'menoptera,' 1879. 



Thomas Blackburn and W. F. Kirby, "Notes on Species of Aculeate 

 Hymenoptera occurring in the Hawaiian Islands," Ent. Month. Mag. 

 xvii. pp. 85-89. 



P. Cameron, " Notes on Hymenoptera, with Descriptions of New Species," 

 Trans. Ent. Soc. 1881, pp. 555-562 (Sierola (g. nov.) testaceipes, Che- 

 lonus carinatus, Monolexis^ palliatus, Chalcls polynesialis, Crabro 

 j>olynesialis). 



P. Cameron, "Descriptions of New Genera and Species of Hymenoptera," 

 Trans. Ent. Soc. 1883, pp. 187-193 (Ejntranus lacteipennis, Moranila 

 testaceipes, Solindenia picticornis, Eupelrnus flavipes, Evania sericea, 

 Limneria polynesialis, L. Blackburni, Ophion li7ieatus, 0. niffricans). 



The descriptions of new species of Prosopis, Odynerus, 

 and Crabro, and the remarks thereon are by Mr. Black- 

 burn. All that I have done in these genera is to cata- 

 logue and bring together the references to the species ; 

 also I have made certain alterations in synonymy. I have 

 likewise to thank Mr. G. F. Matthews, R.N., for some 

 specimens from the islands. — P. C. 



As I have in my collection of Hawaiian Hymenoptera 

 a considerable number of undescribed species_, and made 

 various observations of habits &,c., at periods subsequent 

 to the description by Messrs. F. Smith, W. F. Kirby, and 

 P. Cameron, of certain new species, I think that it will be 

 desirable for me to put forth a paper on these insects in 

 which I shall endeavour to include the hitherto undescribed 

 species, and add such remarks as may seem profitable con- 

 cerning those that have already been described. 



The Hymenopterous fauna of the Hawaiian Archipelago 

 is, I believe, a rich one. It held a claim on my ento- 

 mological energies so decidedly second to that of the 



