312 Mr. G. E. Bodkin's Nolens on 



cate process of mouldinfi the mud around the edge of the 

 nest is performed with the mandibles, which are long and 

 well suited to the work. During the o])eration the long 

 antennae are bent downwards and kept rapidly moving 

 about the work as though guiding it and preserving the 

 synnnetrv of the structure. A small species of C'hrysid 

 was bred on one occasion from the mud cells of this 

 Euynenes. 



E. caUimorphi, Sauss. Vicinity of Georgetown. 



Genus Pachytenes, Sauss. 

 P. jicdlipes, Oliv. Onderneeming, Essequebo. 



Genus Zethus, Fab. 



Z. mexicanns, L., var. higvbris, Perty. An uncommon 

 species on the coast lands. 



Z. gigas, Spin. Issororo, N.AV.l). 



Z. sichelianus, Sauss. Inhabiting disused borings in 

 timber, Courantyne Coast, Berbice. 



Genus Odynerus, Latr, 



0. nasidens, Latr. Courantyne Coast, Berbice. 

 0. clavilineatus, Cameron. An uncommon species in the 

 interior. 



FOSSORES. 



Family MUTILLIDAE 



Genus Mutilla, L. 



M. (ThaumatomutiUa) parallela, Klug. A fairly common 

 species on the sandy soils of the interior. 



M. mediata, F. From Courantyne Coast, Berbice. Taken 

 while issuing from some disused borings in timber. 



Genus Thaitmatomutilla, Andre. 

 T. ocellaris, Klug. Tumatumari, Essequebo River. 



Family SCOLIADAE. 



Subfamily TIPHIINAE. 



Genus Tiphia, Fab. 



T. pdraUela, Smith. The larva of this wasp is parasitic 



on the larva of Dyscinelus bidentaliis, Burm. (Coleoptera) ; 



fairly connnon on the coast lands. 



