Ifl 



298 Mr. n. TTBodkiirs Nole.s on 



the cliief conimuniciitioii routes either by water, road, or 

 trail. Vast areas consequently remain untouched. 



The collection at present contains 1 ,000 specimens, of 

 which 101 species are named. All these identifications 

 have been made either by specialists in the ]^>ritish 

 Museum, through the co-operation of the Imperial Bureau 

 of Entomology, or by specialists in the U.S. National 

 Museum, 



The present work clearly shows that in sc()])e it can 

 hardly ])retend to do more than outline the vast field which 

 awaits entomologists in this ])art of the world. 



There is a distinct difference between the Hiimenoptera 

 of the flat, cultivated and inhabited coast lands and those 

 of the forest-clad area. Many species of common occur- 

 rence on the coast lands are never found in the forests, 

 and vice versa. The climate of these two areas also varies, 

 the interior distiicts having a higher rainfall and a some- 

 what higher temperature. The trade-winds which sweep 

 the coast lands most of the year are not experienced to 

 any extent inland. No opportunity has yet occurred 

 to investigate the large tracts of savannah lands which 

 exist at the back of the Colony near the Brazilian 

 frontier. 



The observations on the habits and life-histories are 

 mostly my own, but a immber of interesting notes by the 

 following gentlemen must be acknowledged : Mr. C. B. 

 Williams, Mr. L. D. Cleare, Jnr., Mr. H. W. B. Moore, and 

 Mr. A. A. Abraham. 



I have endeavoured to give as full information as pos- 

 sible concerning each species. Wheie only one sjiecimen 

 of a species has been collected I have given the locality of 

 collection. 



The Ants have not been included in these notes, as 

 Mr, AV. C. Crawley has already published * an account of 

 the Family. 



Family APIDAE. 

 Subfamily SPHECODINAE. 

 Genus Temnosoma, Smith. 

 T. (tcniginosum, Smith. Issororo, N.AV.D. 



* " Ants from British Guiana," W. C. Crawley, B.A. Annals 

 and Magazine of Natural History, Ser. 8, vol. xvii, May, 1916. 



