338 INSECTA. 
panied by a seta*. The palpi of the greater number are flattened or 
laminiform, and laid on the proboscis. 
These characters—a body compressed on the sides, a triangular 
head, slightly projecting in the manner of a snout, the abdomen 
curved underneath, and long slender legs furnished with little spines, 
particularly distinguish the genus 
Douicuorus, Lat. Kab., 
Which now forms a small tribe—Do.icnopopEs—arranged by M., 
Macquart, ina very natural order, which we adopt, with the exception 
of one alteration, which will place Dolichopus proper and Ortochile, 
with which he finishes, at the beginning. 
The male organs of generation, in some, present laminiform ap- 
pendages. 
Here the proboscis is elongated, and forms a little rostrum. 
OrrocuiLe, Lat., Meig., Macq. 
There, as in all the other Dolichopi, the proboscis is very short, or 
almost non-salient. 
Douicuorus proper, 
Where the third joint of the antenne is almost trianglar, but slightly 
elongated, with a seta of moderate length, uninflated, and in the form 
of a joint between its middle and extremity. 
These Insects are frequently green or cupreous. The legs are 
long and very slender. They are found on walls, trunks of trees, &c. 
Some of them run along the surface of the water with great cele erity. 
The sexual organs of the male are almost always external, large, 
complex, and folded up under the venter. 
D.ungulatus, Fab.; Némotéle bronzée, De Geer, Insect., VI, 
xi, 19,20. Antenne but half the length of the head; ; body bronze- 
green, glossy; eyes golden; legs pale yellow; wings immaculate. 
Its larva lives in the ground ; it is long, cylindrical, and fur- 
nished with two points in the form of recurved hooks. On the 
front of the thorax of the nymph are two long horns directed 
forwards, and bent into the figure of an 8 f. 
Sypistroma, JMeigq., 
Where the last joint of the antennz is almost in the form of the blade 
of a knife, with a very long seta, inflated like a knot, anterior to its 
extremity § 
The male organs of generation in the others are furnished with 
filiform appendages. 
* In several, the last joint of the antenne differs but little from that of the 
preceding Diptera, but the relative position of their wings and their reticulation 
present distinctive characters. 
+ Lat., Gen. Crust. et Insect., IV, 289. See also Meigen and Macquart. 
+ For the remaining species, ‘ahd some others of the following subgenera, see a 
Weer of the Baron Cuvier, in the Journ. d’Hist. Nat. et de Phys., Ll, p. 253; 
See also Meigen and Macquart. 
§ Meig. and Macquart. 
