PARKER: NEW ENGLAND SARO )1'11A(;IDAE. 7 
Upper eye urbitfi: those portions of the parafrontals iiiiincdiiitely 
bordering the eyes (PI. 1, fig. 1, iiro.). 
Lower eye orbits: tho.se portions of the genae ininicdiatcly l)or(lering 
the eyes (PI. 1, fig. I, leo.). 
Posterior mouth iitargiii: tiiat part of the mouth margin which is 
formed by the base of the metacephalon (PI. 2, fig. 11, pmin.). 
Anterior month margin or Oral margin: that part of the mouth 
margin formed by the hnver edge of tiie facial phite (PI. 1, fig. 1, am.). 
Lateral mouth margins: those portions of the mouth margin \\hich 
lie laterally and are between the anterior and posterior margins. 
Baek of head: this includes all that portion of tiie posterior surface 
of the head which lies behind the posterior eye orbits with the excep- 
tion of the posterior portions of the cheeks. 
I'estiture. — Behind the eyes and more or less parallel with the 
posterior orbits are four more or less regular rows of black cilia. 
These do not cross the epicephalon and the division into rows is more 
distinct as this region is approached. These cilia become more hair- 
like as they extend dowTiward laterally. Below^ them the back of the 
head is clothed with fine, yellowish white hair, except that the lateral, 
anterior, basal parts of the metacephalon wliich lie within the angles 
formed by the basal sutures and the posterior margin of the mouth, 
bear l)lack hairs which are somewhat coarser and similar to those on 
the posterior parts of the cheeks. The hairy vestiture becomes longer 
ventrally. The cheeks are covered with black hair that increases in 
length posteriorly to ecpial that of the lower part of the metacephalon. 
Fringing the ventral margin of the cheek is a row of small bristles 
which extend forward and upward to the anterior or oral margin of 
the mouth. The parafrontals and genae are sparsely clothed with 
short, black, almost bristle-like hair, and the most lateral portions of 
the transverse impressions may l)e also. Above the vibrissae, the 
facialia bear a few short, stout bristles, but otherwise only scattered 
and even minute hairs which are on the part nearest the frontal suture. 
In species of the genus Sarcophaga the vitta often bears small hairs 
and bristles at its sides just beneath the ocellar plate. 
Thorax. 
Of the three thoracic segments, only the mesothoracic is well devel- 
oped; the others are much reduced in size. 
The whole dorsal surface except the two swellings at its anterior 
