LIST OF DIPTEBA. 545 



117. Laphria Decula. 

 Dasypogon Decula, Cat. of Diptera, Pt. 2, 352. 

 Sierra Leone. 



Mauritius. 



A. Pedes nigri. 



A. Thorax viridi-niger. ... subrnetallica, Macq. 



B. Thorax niger. 



a. Facies albida. .... caerulescens, Macq. 

 B. Facies non albida? - cyan eogaster, Macq. 



B. Pedes testacei. ------ Breonii, Macq. 



Group 1. 



Corpus angustum, parce pilosum. Facies plana. Mystax 

 setis plurimis iustructus. Proboscis lanceolata. Antennarum arti- 

 culus 3us longifusiforrais, articulis lo et 2o coujunctim paullo 

 longior. Abdomen sublineare, thorace angustius. Pedes sat gra- 

 ciles, setis nonnullis longis instructi. 



Fore fork of the cubital vein undulating, much curved near the 

 base ; hind fork slightly curved, inclined towards the first externo- 

 inedial, but at some little distance from it on the border ; first and 

 second externo-medial veins straight; third forming an obtuse 

 augle with the prabrachial, joining the fourth at a short distance 

 from the border. Subanal joining the anal very near the border. 



Laphria subrnetallica. 



118. Laphria submetallica. 



Viridi-nigra ; abdomen violaceo-nigrum, lateribus albido rnacula- 

 tis ; antenna pedesque nigra ; alee fuscance. 



Laphria subrnetallica, Macq. Dipt. Exot. i. 2, 63, 3. 



Isle of France. 



119. Laphria caerulescens. 



Nigra , facies albida ; mystax niger ; abdomen cyaneo purpureoque 

 nitens ; segmentorum latera albo notata ; alee fuscescentes. 



Laphria caerulescens, Macq. Hist. Nat. Dipt. i. 286, 28. 



a. Isle of France. 



3 b 2 



