258 INSECTA. 
body in every direction, advances and moves about in the sand, 
and excavates there an infundibuliform cavity, at the bottom of 
which it secretes itself cither entirely or partfally. If an Insect 
be precipitated into the trap it rises suddenly, clasps it with its 
body, pierces it with the stings or hooks of its head, and sucks 
it. It flings away the carcass as well asthe sand, by bending 
its body, and then suddenly relaxing it, like a bow. 
The pupa is covered with a layer of sand. 
M. de Romand, paymaster-general at Tours, who makes a par- 
ticular study of the Insects in his vicinity, has again observed 
the metamorphoses of this Insect, and sent me several living 
larve, some of which I preserved in that state for three years(1). 
The Clinocere—C.iinocrra—of Meigen, by their wings, seem to 
belong to the following division. 
The other ‘Tanystoma of our second division have their 
wings incumbent on the body, and exhibit at most but two 
complete or closed cells. ‘The antenn terminate in a pa- 
lette, almost always accompanied by a seta(2). The palpi of 
the greater number are flattened or laminiform, and laid on 
the proboscis. 
These characters, a body compressed on the sides, a trian- 
gular head, slightly projecting in the manner ofa snout, the 
abdomen curved underneath, and long slender legs furnished 
with little spines, particularly distinguish the genus 
Do.icuopus, Lat. Fab. 
Which now forms a small tribe—Do.ticnoropEs—arranged by M. 
Macquart, in a very natural order, which we adopt, with the excep- 
tion of one alteration, which will place Dolichopus proper and Or- 
tochile, with which he finishes, at the beginning. 
The male organs of generation, in some, present laminiform ap- 
pendages. 
(1) For the other species, see Fabricius, Meigen and Macquart. 
(2) In several, the last joint of the antennz differs but little from that of the 
preceding Diptera, but the relative position of their wings and their reticulation 
present distinctive characters. 
