LIST OF DIPTERA. 247 



407. Tabanus megalops. 



Mas. Rufescens ; oculi magni,jlavi, disco fusco margine aneo ; 

 thorax fusco quadrivittatus ; pectus testaceum ; abdomen vittis 

 tribus lateribusque albidis ; pedes fulvi, tarsis fuscis ; alee 

 sublimpidce. 



Male. Reddish. Head with white tomentum and down beneath. 

 Eyes large, above brown with a yellow border, and composed 

 of rather large facets ; outer border aeneous, broad in front, and of 

 extremely small facets. Thorax with two brown stripes on each 

 side. Pectus testaceous, with whitish tomentum and down. Abdo- 

 men with three dorsal white stripes, the lateral pair indistinct; 

 sides whitish. Legs tawny ; tarsi brownish. Wings nearly limpid; 

 veins tawny ; cubital vein simple, forming an obtuse angle near the 

 base ; subanal joining the anal at some little distance from the 

 border. Length of the body 5^ lines ; of the wings 10^ lines. 



a. Java. From the East India Company's collection. 



408. Tabanus aukotestaceus. 



Mas. Aurato-fulvus , subtus canescens ; oculi transverse subcari- 

 nati ; palpi fiavi ; antennas minutce, subarcuatce, non dilatatce 

 nee furcatce, apice fusco? ; pedes testacei, femoribus basi coxis 

 tarsis femoribusque anticis omnino nigris ; ala subcinerece. 



Male. Tawny, covered with testaceous slightly gilded tomentum 

 Head and thorax somewhat hoary beneath. Head large. Eyes 

 prominent in front, a little longer than broad, divided into two 

 compartments by a slight transverse ridge ; all the facets very 

 small. Palpi pale yellow. Antennas tawny, very small, very 

 slightly curved, with brown tips ; third joint slender, quite simple, 

 with no dilatation or angle. Legs testaceous ; coxae, tarsi, femora 

 at the base and fore femora black. Wings very slightly gray ; first 

 branch of the cubital vein simple, forming a slightly obtuse angle 

 very near its base ; subanal vein joining the anal at some distance 

 from the border. Halteres tawny, with ferruginous tips. Length 

 of the body 6 lines ; of the wings 11 Hues. 



a. Shang-hai, North China. From Mr. Fortune's collection. 



