208 LIST OF DIPTERA. 



piceous, testaceous at the base. Antennae black, much acuminated, 

 slightly curved ; third joint armed with an acuminated moderately 

 long horn. Thorax with three blackish stripes. Pectus mostly 

 black. Abdomen black, with two rows of white spots. Legs black. 

 Wings dark brown ; tips, hind border and disks of some of the 

 areolets gray ; veins black ; cubital vein simple, forming a slightly 

 obtuse and somewhat rounded angle ; subanal joining the anal at 

 some distance from the border. Halteres tawny, with whitish 

 knobs. Length of the body 10 lines ; of the wings 18 lines. 



a. Brazil. From Mr. Bates' collection. 



225. Tab an us semisoebidus. 



Ferrugineus ; oculi cenei ; palpi albi ; antenna picece, simplices, 

 valde arcuatce, \ix dilatatce, basi fulvce ; thorax nigro quadri- 

 vittatus ; abdomen vitta interrupta nigra ; pedes fulvi y tibiis 

 anticis apice femoribus anticis tarsisque piceis ; alee cinerece, 

 antice f users maculis pallidioribus. 



Female. Ferruginous. Head clothed with whitish tomentum 

 and down, with a much elongated callus between the eyes. Eyes 

 aeneous, composed of extremely small facets. Palpi white. An- 

 tennas piceous, mucb curved, tawny towards the base; first and 

 second joints angular above ; third slightly dilated, forming an 

 acute angle. Thorax with four black stripes. Abdomen with 

 an interrupted black stripe, which is most conspicuous towards the 

 tip. Legs tawny ; tarsi, fore femora and tips of fore tibiae piceous. 

 Wings gray ; fore part for two-thirds of the length and half the 

 breadth brown, excepting the disks of some of the areolets; veins 

 black ; cubital vein simple, forming a slightly obtuse angle near the 

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

 Length of the body 7j lines ; of the wings 15 lines. 



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



226. Tabanus an gust us. 



Fcem. Antenna pedesque rufa ; thorax testaceus ; abdomen elon- 

 gatum, nigricans, vittis tribus albidis ; aloe hyalince. 



Tabanus angustus, Macq. Dipt. Exot. i. 1, 136, 29, pi. 17, f. 3. 



Distinguished from T. modestus, trivittatus, frc. by its tawny 

 fore legs. 



Monte Video. 



