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• CONOPS. CONOPS. 
Generic Character. 
Os rostro porrecto, genicu- 
lato. 
Mouth with a porrected, 
jointed snout. 
Of this genus the most common species is the 
Conups calcitrans of Linnaeus, remarkable for its 
extreme similitude to the common window-fly, 
for which it is very frequently mistaken, but, if 
closely examined, will be found to be clearly dis- 
tinguished by its strong and pointed proboscis, 
stretching forwards from an elbow or joint at its 
lower part. This insect, during the autumnal 
season, is very troublesome both to men and 
cattle, causing a sharp or pungent pain by the 
insertion of its proboscis, while in the act of suck- 
ing blood. It is, according to Linnaeus, the prin- 
cipal cause of th’e wincing and kicking motion so 
frequent in horses during the heat of the day. 
Like the Tabani and some other flies it is most 
troublesome on the approach of rain. 
Comps irritans Lin. much resembles the preced- 
ing, but is not much more than half its size: its 
habits are the same; causing uneasiness to cattle 
