632 list of diptera. 



29. Erax cdliciformis. 



Mas. Ater ; caput et thorax ferrugineo tomenlosa; caput subtus 

 albo pilosum ; mystax supra niger ; subtus testaceus ; thorax 

 vittis tribus subconnexis nigris ; abdomen fasciis duabus inte- 

 gris, una basali altera subapicali,duabusque intermediis inter- 

 ruptis argenteis ; pedes subtus albido subpubeseentes ; ala: 

 fusccB. 



Male. Deep black. Head and thorax with ferruginous tomen- 

 turn. Head clothed beneath with white hairs. Mystax with black 

 bristles above and with testaceous bristles below. Disk of the tho- 

 rax black, with two very slender and indistinct ferruginous stripes. 

 Abdomen with four silvery bands, first and fourth entire, second and 

 third interrupted. Legs partly and thinly clothed beneath with 

 whitish down. Wings brown. Halteres testaceous. Length of 

 the body 6 lines; of the wings 8 lines. 



a. Tapayos, Brazil. From Mr. Bates' collection. 



30. Erax Lades. 

 Asilus Lades, Cat. of Diptera, Pt. 2, 403. 

 Brazil. 



31. Eiiax Parphorus. 



Erax Parphorus, Diptera Saundersiana, Pt. 2, 127. 



Colombia. 



32. Erax dilectus. 



Fcem. Caput et thorax picea, albido tomentosa ; caput subtus 

 albo pilosum; mystax supra niger, subtus albidus ; thorax 

 piceo vittatus ; abdomen atrum, fasciis quinque interruptis 

 albis, 4a. minima, ba latissima ; pedes picei, albo pubescentes, 

 spinis nigris ; alee subcinerece. 



Fern. Head and thorax piceous, with whitish tomentum. 

 Head with white hairs beneath. Mystax with black upper bristles 

 and whitish lower bristles. Thorax with two piceous stripes, which 

 are connected hindwatd. Abdomen deep black, with five inter- 

 rupted white bands; first, second, third and fifth bands broad; 

 second and third deeply indented in front; fourth very slender ; 

 tilth occupying the whole length of the sixth segment. Legs 

 piceous, with white down ; spines black. Wings slightly grayish. 

 Halttres testaceous, with piceous knobs. Length of the body 7 

 lines ; of the wings 10 lines. 



a. Santarem, Brazil. From Mr. Bates' collection. 



