4 oi 
pygium in <? larger, paler, somewhat more oval in out¬ 
line, and clothed with fewer hairs. (7) Tip of $ 
abdomen less hairy laterally. (8) Bristles on sixth 
segment in <? stouter and more conspicuous than in 
longipalpis. 
6 . Gl. longipalpis. 
(ftft) Last two joints of front and middle tarsi 
entirely pale. 
7. Gl. pallidipes. 
(cut) Large species. Length at least ten-and-a- 
half mm. (in this respect they contrast markedly with 
the other small species). 
8. Gl. longipennis. —(1) Thorax with four sharply 
defined dark-brown oval spots. (2) Ocellar spot, 
dark-brown, very conspicuous compared with the body. 
(3) Proboscis shorter than in G. fusca , and relatively 
shorter, compared with the body, than in any other 
species. (4) In both sexes the front is broader than 
in Gl. fusca. 
9. Gl. fusca .—Thorax without spots. 
2. Sarcophagidae. 
Not blood-sucking. Arista feathery at the base, 
bare at the tip. Large flies, about 14 millimetres long. 
Genus Sarcophaga. —Elongated thorax, three black 
' bands, abdomen spotted. Third segment of antenna 
three times the second segment. 
S. carnaria , S. magnifica , and S. ruficornis (India), 
give rise to terrible forms of myiasis in man and 
animals. 
3. Oestridae (Bot. ( = Larva) Flies). 
Not blood-sucking. Large flies. Proboscis rudi¬ 
mentary. Antenna very short. Arista segmented. 
Flight humming. 
(a) Genus Gastrophilus , e.g., G. equi. The white 
eggs can be easily seen on the horse’s hair. The larvae 
cc 
