some British Guiana Hymenoptera. 317 



Subfamily TRYPOXYLINAE. 

 Genus Trypoxylon, Latr. 

 T. palliditarse, Sauss. A fairly comi.on species on the 

 coast lands . , ^ ^ ^j^g disused 



T.fvgax, F. This "/.^^f ,^;^(.^^"^\f ^f ,,f f^irlv common 

 cells of Eumeyics canaUculakt, 01. it is 



occurrence. Pameron A common and widely 



T. t'-^^f ^'•^^^'^'.'''"'\,^XfX Colony. It usually con- 

 distributed species all o^er ttie ^^o^«^^> , ^ ^ ^^,,,^. 



structs its nest of mud cells ^^^^^^ ^-/^f ^iif;^^^^ found 

 times as many as t-nt^y^^^^^^^^^^^^ ^rly an inch 



nest. Potaro Kivev. 



r. ««*««. Sm. 1^7™,^f *bYt; of this species liave 



been observed by Mi ( . B- "'l"^'";^ ;„ t|,e angle 



cell was constructed by one o^' ^ ™ ^ ^^,, ,„,,,% 



It- rtd t ::,rectrJ appn^l to t,., .de o. tl. 

 nest, gradually drawing rt .f °™7-:thde t,me Th.rty 

 S^^^nr^ei:^;t:^n;:!;^Hn,oneM.U. 



of mud. Spiders are stored. 



Family TRIGONALIDAE 

 Genus Trigonalys, Westw. 



Te^ wMXbad CtatXn, ,nst beneath the surface 

 of the soil on a sugar estate. 



Family CHRYSIDIDAE 

 Subfamily CHRYSIDINAE. 

 Genus Ohrysis, L. 

 C. pmclatissima, Spin. A common species on the coast 



^^Tdistinctissima, Dahlb. Bartica, Essequebo River. 

 C parvula, F. East Coast, Demerara ^ 



TRANS. ENT. SOC LOND. 1917.— PART^, II, m, ^^ ■ \ 



