x xiv 
HALTERES 
Are rudiments of pofterior wings, and confifl 
of a foot-ftalk, with a little knob, or of a membra¬ 
naceous arched fcale ; they are peculiar to the dais 
Diptera. 
, 9 • • f 
PECTINES 
Are two ; adhering between the abdomen and 
t>reaft, toothed on one fide ; they are peculiar to the 
genus Scorpio ; the fpecies of which are readily dif- 
tinguifhed. according to the number of teeth in each 
pe&en. Ufc unknown . 
