of the Family Tabanide. 287 
Among the Walker types of Chrysops I found what I 
believe is a specimen of Apocampta nigra, Schiner, a genus 
belonging to the Pangonia group and included in the table 
in Ann. & Mag. Nat. Hist. (7) v. p. 98 (1900). 
Avocampta, Schiner. 
Apocampta, Schiner, Reise Novara, p. 96 (1866). 
* Apocampta subcanus, 2, Walker, List Dipt. pt. i. p. 204 
(1848) (Chrysops). 
A. nigra, 2, Schiner, Reise Novara, p. 96 (1866). 
The type (female) from Australia proved on examination to 
be not a Chrysops, but apparently identical with Schiner’s 
species, as did also another female from Mackay, Queens- 
land, 94. 61 (Turner). 
They agree with the description given by Schiner, but the 
abdomen is not so broad in the second female. Schiner 
describes the second joint of the antenne as ending ina 
bristle (“ Dorn”’) ; in these the joint is small, with a ring 
of fine bristles, and black hair on the sides; the palpi have 
the first jomt cylindrical, the second wider at its base, 
curved, and tapering to a point; the thorax is brownish 
with three black obscure stripes. 
Paneoning, 
Hind tibize with spurs. Ocelli usually present. 
Third joint of antenne with five divisions. Proboscis 
STOUR teeters foy suey See Lee bol soley swoacant sis cho oewiee enceer ese Silvius, &e. 
The genera comprised in this division of the Pangoninz 
are :—Sylvius, Meig., Rhinomyza, Wiedem., Gastrowxides, 
Saunders, Pronopes, Loew, and Chrysops, Meig., with Esen- 
beckia, Rondani, a subgenus formed from Siélvius. 
Attempts have been made to subdivide Silvius, creating 
new subgenera, which Loew in his Dipt. Siidafrik. considers 
unnecessary owing to the few known species of Silvius ; 
Esenbeckia is the only subgenus left to stand for the present. 
Mesomyia, Macgq., created for M. decora, from Natal, by 
Macquart (Dipt. Exot. Suppl. 4, p. 38, 1850), both Loew 
and Schiner agree must be merged again in Silvius ; the 
former considers M. decora is the same as his Silvius decipiens, 
but Macquart’s description is too meagre for him to form 
a definite opinion (see Dipt. Siidafrik. p. 15). 
Ectenopsis, Macq. (Dipt. Exot. i. p. 111, 1838), formed 
for Chrysops vulpecula, Wiedem., the above authorities also 
