list of diptera. 641 



77. Erax? femoralis. 



Cinereus ; antenna et pedes rufescentes ; thorax vitta et utrinque 

 punclo fuscis ; femora nigro vittata ; alee UmpidcB, vena 

 cubitalis f urea postica et vena externo-media la conjunctis. 



Asilus femoralis, Wied. Auss. Zweifl. i. 466, 61. 



Egypt. 



Asia. 



A. Abdomen nigrum. 



A. Abdomen maculatum. - - - - Sinensis, Macq. 



B. Abdomen non maculatum. 



a. Pedes toti nigri. .... - integer, Macq. 



b. Femora et tibia? subtus rufa. - - Curiatius, Walk. 



B. Abdomen rufum. - - - rufiventris, Macq. 



Group 1. 



Mas. Corpus parce pilosum. Caput subtus dense pilosum. 

 Facies valde couvexa. Mystax sat dense selosus. Proboscis sub- 

 linearis. Thoracis latera et scutellum parce setosa. Abdomen 

 longi-oblanceolatum, thoracemulto angustius et plus duplo longius. 

 Sexualia magna. Pedes robusti, setosi, parce birti. 



Radial as usual. Cubital vein forked at half its length ; fore 

 fork hardly curved, forming' an obtuse and rounded angle at its base ; 

 hind fork very slightly undulating. First and second externo-medial 

 veins nearly straight ; third slightly curved, forming a slightly ob- 

 tuse angle with the praebrachial, joining the fourth far from the bor- 

 der. Subanal joining the anal near the border. 



Erax Curiatius, Walk. 



78. Ehax Sinensis. 



Foem. Ater ; thorax cinereus, nigro vittatus ; abdominis seg- 

 menta 2um 3um Sumque albido maculata ; ala fuscance. 



Erax Sinensis, Macq. Dipt. Exot. i. 2, 108, 2. 



China. 



79. Ehax integer. 



Foem. Niger ; mystax albidus ; thorax cinereo tomentosus, vittis 

 nigris ; alee subhyalince, vena cubitalis furca antica ramuium 

 non rejiciens. 



3 k 2 



