316 Mr. G. E. Bodkin's Notes on 



SubfamUy PHILANTHINAE. 

 Genus Cerceris, Latr. 



C. (Trachypus) mexicanus, Cameron. An nncomnion 

 species. Taken while emerp;ing from its burrow in sandy 

 soil at the base of a tree. Plantation Bath, Berbice. 



Subfamily BEMBICINAE. 



Genus Bembidula, Burm. 



B. diseisa, Tasch. Upper Demerara River. 

 B. variegafa, 01. Upper Demerara River. 



Genus Monedula, Latr. 



M. pantherma, Handl. A fairly connnon species in some 

 parts of the interior, especially where sandy soils exist. 

 It is quite the largest and fiercest of these insects to 

 be found in the Colony. Its burrows are stored with 

 Tabanidae. 



M. punctata, Lep. An uncommon species in the interior. 



M. signata, Latr. The commonest and most widely 

 distributed Bembex in British Guiana. It may frequently 

 be seen about mules and cattle in the pastures waiting to 

 carry off the Tabanidae which are always present about 

 these animals. Their burrows may be seen in sandy soil, 

 and usually occur in colonies of twenty or thirty. A 

 large species of Bombyliid fly may be seen about these 

 burrows, occasionally entering them. Its exact relation- 

 ship to the wasp has never been actually traced, but it' 

 is quite possibly parasitic. The fly belongs to the genus 

 Anthrax. 



SubfamUy GOBYTINAE. 



Genus Gorytes, Latr. 



G. brasiliensis, Shuck. Rockstone, Essequebo River. 



Subfamily LABRINAE. 

 Genus Tachytes, Panzer. 

 T. amelina, Cameron. Rockstone, Essequebo River. 



Genus Larra, Pab. 

 L. rubricata, Smith. Rockstone, Essequebo River. 



