DIP TER A. 481 
C. Antennal bristle bare near the tip. p. 482.. Sarcophagi 
CC. Antennal bristle plumose or pubescent to the tip. 
D. Dorsum of abdomen bristly ; legs usually elongate, p. 482. 
DeXIINjE. 
DD. Abdomen not bristly, except sometimes somewhat so 
near the tip. p. 482. MusciNjE. 
AA. Cell Ills widely open, not narrowed at the margin of the wing 
(Fig. 589). p.483. ANTHOMYIJNiE. 
Subfamily TACHlNlNiE (Tach-i-ni'nae). 
The Tachina-flies ( Ta-chi'na ). 
The Tachina-flies are often found about flowers and rank 
vegetation. They are usually short, stout, and bristly, 
and can be distinguished from 
the three following subfamilies by 
the bristle of the antennae being 
wholly bare. 
The larvae are parasitic, chiefly 
within caterpillars, and play an ex¬ 
ceedingly important part in check¬ 
ing the increase of noxious insects. 
The female fastens her eggs to the F LarvTa 7 ui^'Pium, and^gs 
of a caterpillar (Fhr. too): 
1879.) 
skin of a caterpillar (Fig. 590); 
when the larvae hatch they bore 
their way into their host and live 
grown. 
there till they are full- 
32 
