346 LIST OF DIPTEBA. 



Subcostal vein ending at much heyond half the length of the 

 wing; mediastinal ending at a litllc beyonil the subcostal; radial 

 ending at some distance in front of the tip of the wing ; cubital 

 simple; first externo-medial complete; second and third abbreviated ; 

 subanal vein united t» the anal at some distance from the border; 

 discal areolet tetragonal, very long and narrow. 



Physegaster, Macq. Exped. de VAlg. iii. Ins. 445. 



1. Physegaster maculatcs. 



Niger; antennarum artienhtf 3us ad basim testaceus ; thorax 

 fulvu pilosus ; abdomen flavo fulvescens, maculis trigonis Jla- 

 vis ; pedes Jlavi, coxis tarsisque rufescentibus. 



Physegaster maculatus, Macq. Exped. Alg. iii. Ins. 445, 88, pi. 3, 

 f. 6. 



Algeria. 



Genus 14. PTERODONTIA. 



Corpus villosum. Oculi hirti, contigui. Ocelli ties. Pro- 

 boscis brevis. Antennae biarticulatae, facie inserta;. Prothoracis 

 lobi dorsales remoti. AIje cosla dilalala. 



Pleiodontia, G. R. Gray, Griff. Anim. Kingd. xv.779; Macq.; 



Erichs. ; Westw. 

 Henops ? p., Klug. ; Meig. 



Costa forming a tooth between the tips of the subcostal and 

 mediastinal veins; costal vein ending at a little in front of the tip 

 of the wing; subcostal ending at a little beyond half the length; 

 mediastinal ending at beyond two-ihirds of the length ; radial end- 

 ing at a little beyond the niediastiual ; cubital not forked, ending at 

 far in front of the tip of the wing ; one externo-medial veiu extend- 

 ing to ihe border ; subanal and anal veins united near the border. 



1. PtERODONTIA FLAVIPES. 



Nigra ; scutellum et abdomen basi ad dorsum nigro viaculala ; 

 abdomen lestaceum ; pedes paltidi, fcmoribus posterioribus 

 nigris. 



Ptcrodontia flavipes, G. R. Gray. 



Georgia. 



