78. 

 TABANUS ALPINUS. 



Order Diptera. Faini. Tabanidse Leach. Tabanii Lat. 



Type of the Genus Tabinus bovinus Linn. 



Tabanus Linn., Fab., Lat., Schr., Leach, Meig., 8<;c. 



Antenna: inserted in front of the face, porrected, approximating 

 as long- as the head, 7-jointed, 1st joint clavate-truncate, 2nd 

 small cup-shaped, 3rd large compressed, lunate-truncate, 3 fol- 

 lowing small quadrate, 7th slender attenuated (3). 

 Labruni long, lanceolate, grooved margined, acute (b). 

 Tongue long, lanceolate, very acute, margins sharp (c). 

 Mandibles long, lanceolate, very smooth, and acute, thickened 

 externally from the base (d). 

 Maxillce long, slender, acute (e). 



Palpi attached to the base of the maxillae, exserted, villose, in- 

 curved at the base, 2-jointed, 1 st joint short, cylindric, with 

 long hair externally, 2nd joint long robust, short and capitate in 

 the males, somewhat attenuated in the females (f). 

 Lip large, hairy, bilobed, each lobe hollow externally (g). 

 Mentum elongate cylindric, pilose (h). 

 Head transverse, somewhat hemispherical. Proboscis exserted as long 

 as the head. Eyes contiguous in the males, approximating in the 

 females. Ocelli none. Thorax large oval-quadrate. Scutellum 

 without spines. Abdomen cijlindric- conic in the males, broad de- 

 pressed in the fenuUes. Wings divaricating, with 3 discoidal cells, 

 sometimes having a short branch in the sulnnarginal cell. Squa- 

 mvXee: large. Halteres (/is^iwc^. hegfi strong. Tarsi 5-joJHto/, \st 

 joint long, ?> following short, cordate, [)th obovatc, truncate. Claws 

 simple acute. \'n\vi\l'itrilobed,venj distinct (8 tarsus of a fore leg). 

 Obs. the dissections are from a female. Fig. 1 represents the trophi 

 viewed from above. Jig. a being the clypeiis : B, the same in projile : 

 C, the lip : D, the maxillce and a palpus : E, a mandible : F, the 

 tongue and labrum. The corresponding small letters denote the same 

 organs in all the figures. 



Alpinus Schrank Fauna Boica. 3. 2534. — Fulvus Meig. 2. 61. 40. 

 Female. Black sparingly clothed with short aureous hairs. Face 

 and Palpi pale ochraceous, with one black minute spot between 

 the eyes, which as well as the scutellum are fuscous-ochraceous, 

 the former with a slight rosy tinge. Abdomen with a ferruginous 

 spot on each side covering one third of the 2nd segment from 

 the base and extending over ))art of the 1st segment, edges of 

 tlie segments appearing aureous with pubescence. Wings 

 ochraceous at the costa and base. Antennae ferruginous. Hal- 

 teres ochraceous. Legs ferruginous. Anterior tarsi and apex of 

 tibiae black, posterior tarsi fuscous towards their extremities. 



In the Cabinets of Mr. Stephens and Captain Blomer, 



