342 ; INSECTA. 
points at the posterior extremity. It ascends to the surface of 
the soil when about to divest itself of its skin, in order to as- 
sume the form of a Tabanus, and protrudes the half of its body 
above it. Very common near Paris. 
T. maroccanus, Fab. Black, with golden-yellow spots on the 
abdomen.—The scourge of Camels, which, according to M. 
ee are sometimes completely covered with these In- 
sects * 
Sometimes the antenne are very evidently longer than the head 
and terminated by a joint forming an elongated cone, or almost cy- 
lindrical, frequently presenting but four rings. The ocelli are want- 
ing in several. 
Some, in which the last joint of the antenne is always subulate 
and divided into five rings, have three ocelli. 
Those, in which the first joint is manifestly longer than the follow- 
ing one, and cylindrical; and where the latter is very short, and re- 
sembles a cup, form the subgenus 
Syivius, Meig. +. 
Those in which the two first joints are cylindrical, and almost equal 
in size, compose the subgenus 
Curysops, Meiq. 
To this belongs the 
C. cecutiens, Fab.; De Geer, Insect., VI, xiii, 3, 5. Eyes 
golden, with purple points; thorax yellowish-grey, streaked with 
black; abdomen yellowish above, witha broad black spot, forked 
at the end, on the two first annuli; two others, elongated, and 
of the same colour on each of the following ones, and three 
blackish-brown and transversal ones on the wings. They are 
constantly persecuting the Horse f. 
The others are destitute of ocelli ; the last joint of their antenne, 
sometimes cylindrical, presents but four rings. 
Here, as in 
Hemaropora, Meiq., 
It is subulate, and the first is thick, and almost borders on an oval in 
the males §. 
There, as in 
Hexatoma, olim Herratoma, Mergq., 
The antenne, longer than in the preceding ones, are cylindrical; 
the last joint is much elongated |}. 
* For the remaining species of this subgenus, see Lat., Fab., Meig., Palis de 
Beauv., Macq., Fallen and Wiedemann. 
+ See Meigen. He quotes but a single species, the Zabanus vituli, Fab., nid to 
which he refers his T. italicus. 
+ See Fab., Lat., Meig., Fall., Wied., Macq., &c. 
§ The same authors. 
|| Tdem. 
