LIST OF DIPTERA. 571 



Genus 13. LAXENECERA. 



Caput mystace conspicua. Proboscis porrecta. Antennae tri- 

 articulata?, non stylatae, insertione solita ; articulus 3us villosus, 

 obtusus. Oviductus brevis. VenDB cubitalis furca antica simplex. 



Laxenecera, Macq. Dipt. Exot. i. 2, 77, 



Laphria p. ? Wied. 



Fore fork of the cubital vein slightly undulating, hind fork 

 united to the first externo-medial vein at a long distance from the 

 border; second externo-medial vein straight; third forming an 

 obtuse angle with the praebrachial, joining the fourth very far from 

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



Africa. 



A. Tibia? antica? fulvae. .... andrenoides, Macq. 



B. Tibia; antica? nigra?. 



A. Thorax fulvo hirtus. .... apiformis, Walk. 



B. Thorax albo hirtus. - - - - nigro-cuprea, Walk. 



Africa. 



1. Laxenecera andrenoides. 



Fcem. Nigra, flavido hirta ; tibia antica fulva? ; alee subfla- 

 vescentes. 

 Laxenecera andrenoides, Macq. Dipt. Exot. Suppl. 1, 76, 3, pi. 8, 

 f.2. 



Caffraria. 



2. Laxenecera apiformis. 



Nigra ; thorax fulvo hirtus ; abdomen obscure cupreum, fasciis 

 albidis ; alee subcinerece, apice obscuriores, venis basi et apud 

 costam halteribusque fulvis. 



Black. Head and legs thickly clothed with long whitish testa- 

 ceous hairs, some of which form the mystax. Thorax with tawny 

 tomentum and hairs. Abdomen dark cupreous ; hind borders of the 

 segments with whitish bands. Wings grayish, rather darker to- 

 wards the tips ; veins black, tawny at the base and along the costa. 

 Halteres tawny. Length of the body 6 lines; of the wings 10 

 lines. 



a. Port Natal. From Mr. Plant's collection. 



3d a 



