540 LIST OF DIPTERA. 



a. Pedes flavi. - varipes, Macq. 



B. Pedes nigri. ------ Metalli, Walk. 



C. Alae lulvae. ------ luetuosa, Macq. 



D. Alae subcinereae. - albimaculata, Macq. 

 B. Corpus 11011 metallicolor. 



A. Thorax totus niger. 



a. Pedes nigri. 



a. Corpus obscurum. 



i. Antenna? apice testaceae. - - bomboides, Macq. 

 ii. Antenna? nigrae. 



b. Corpus nitidum. -• albicincta, Loew. 



b. Pedes rubidi. ----- Dymes, Walk. 



B. Thorax niger, lateribus pallidis. - - lateralis, Fabr. 



C. Thorax fuscus. ----- tridentata, Fabr. 



D. Thorax luteo hirtus. ----- hirtipes, Fabr. 



E. Thorax pallidus. 



a. Alae maculatae. ----- testacea, Macq. 



b. Alae non maculatfe. ----- Decula, Walk. 



The African Laphriae in the British Museum comprise the 

 following groups : — 



Group 1. 



Caput et thorax pilosissima. Facies valde convexa. Mystax 

 densissime setosus. Proboscis longa, valida, apice subarcuata. 

 Antennae longiusculae; articulus 3us longif'usiformis, loet2ocon- 

 junctim multo longior. Pedes validi, hirti, setosi ; tarsi spinosi. 



Head and thorax very hairy. Face very convex. Mystax 

 very thickly beset with bristles. Proboscis stout, long, very slightly 

 curved near the tip. Antennae rather long; 3rd joint elongate, 

 fusiform, much longer than the 1st aud the 2nd together. Legs 

 stout, hairy and bristly ; tarsi spinose. Fore branch of the cubital 

 vein slightly curved ; hind branch nearly straight, parallel to the 

 1st externo-medial vein ; 2nd externo-medial straight ; 3rd forming 

 aright angle with the praebrachial, and joining the 4th far from the 

 border. Subanal united to the anal very near the border. 



Laphria rufibaibis, L. flavipes, L. praeceps, L. Ufens, L. albimacu- 

 lata, L. Dymes. 



Group 2. 



Corpus latissimum. Caput, thorax, pedes et abdominis latera 

 pilosissima. Facies plana. Mystax densissime hirtus. Proboscis 

 brevis, crassa, lauceolata. Antennarum articulus 3us sublinearis, 



