STIBASOMA.— DIACHLOEUS. 57 



l. Stibasoma Mvohirtum. 



Tabanus fulvohirtus, Wiedem. Aussereur. zweifl. Ins. i. p. 155 \ 



Stibasoma fulvohirtum, Schiner, Reise d. Novara, Zool. iii. Abth. 1, p. 94 2 . 



Tabanus compactus, Walk. List &c. v. p. 222 3 . 



Hab. Panama {Champion). — Colombia 2 ; Beazil 1 , Amazon Kiver 3 . 



I have a single specimen from Panama which I have compared with the types in 

 London and Vienna. It agrees in everything, except that the fringe of hairs on the 

 posterior margin of the first abdominal segment differs from that on the other segments 

 in being fulvous and not white. The description of the legs should be amended : the 

 ground-colour is reddish throughout, but more or less concealed by hairs of different 

 length and density ; on the femora this pile is black, but the reddish ground-colour is 

 visible on the posterior side ; on the tibiae the pile is white at the base, black on the 

 distal portion only ; on the front tibiee the white occupies less than half, on the middle 

 tibiae much more than half, of the whole length ; the hair on the hind tibiae is especially 

 long, the white at the base occupies about one third of the length. The tarsi have a 

 microscopic silvery pubescence on the upperside, and a reddish fulvous one on the lower 

 side. The wings have a decided yellow tinge from the base to the end of the first vein, 

 and from the costa to the fifth vein ; the apex and a broad posterior margin are greyish* 

 I have little doubt of the specific identity. 



LEPIDOSELAGA. 



Lepiselaga, Macquart, Dipt. Ex. i. 1, p. 153 (1838). 

 Lepidoselaga, as amended by Loew. 



l. Lepidoselaga recta. 



Lepidoselaga recta, Loew, Centur. viii. 8 '. 

 Hadrus lepidotus, Bellardi, Saggio &c. i. p. 75 2 . 



Hab. Mexico 2 (Salle, Sumichrast); Guatemala, Panzos (Champion). — Colombia 1 . 



Since Dr. Loew defined the difference between L. recta and L. lepidota, Wiedem., the 

 Hadrus lepidotus, Bellardi (non Wiedem.), must be referred to the former. A single 

 specimen has been received from Guatemala. 



DIACHLOEUS. 



Diachlorus, O. Sacken, Prodr. of N. Am. Tabanidae, ii. p. 475 (1876). 

 Diabasis, Macq. Hist. Nat. Dipt. i. p. 207 (nomen prseoc.). 



1. Diachlorus ferrugatus. 



Diachlorus ferrugatus (Fabr.), 0. Sacken, Prodrom. &c. p. 397 * (where the rest of the synonymy 



will be found) . 

 Tabanus rondanii, Bellardi, Saggio &c. i. p. 68, t. 2. f. 11 2 . 



Hab. Southern United States x . — Mexico 2 (Salle, de Saussure) ; Guatemala, Panzos 

 (Champion; a single specimen). — West Indies; Bkazil. 



biol. cente.-amee., Dipt., October 1886. i 



