270 Scientific Intelligence. 
of wing-structure found existing by themselves only in Neuropterous 
groups widely separated. We are strongly fortified in this view by se 
other portions of the insect in the Miamia. In the a omen, mesotho- 
rax and metathorax, we are strongly reminded of Corydalis, one of the 
ialina, a Neuropterous family; while in the head and prothorax, to- 
4 . 
from those drawn from the structure of the wing we shall find, as i 
types. x 
For these two synthetic families, I would propose the names of PaL# 
OPTERINA and Hemeristin 
the Palaopterina we have a body rather broad and depressed, th 
head horizontal, ng 
a i 
anterior half of the wing; te 
fourth nervure; the sixth occupies about as much space as the fifth and 
is made up of a number of branches which fork near the base and fill the 
_ Space with approximate nervules running parallel to the lower branch ‘ 
A ‘fifth. The wings are feeble and the nervures delicate, as in Ephem- 
erina. | 
In the Hemeristina the first, second and third nervures run nearly pat- 
allel to one 
another throughout their course ; the third sends outa branch 
at the extremity of the basal third of the wing at a considerable ang! 
cupy the anterior half of the wi '; the fourth, after running in contigu- 
ity with the third, diverges widely from it and forks below the branching: 
of the third; the fifth, running parallel to the previous, forks very nal 
