376 EXTERNAL ANATOMY OF INSECTS. 
S 
Neura Anatis (the Anal Nervure). ‘The principal 
nervure nearest the interior or posterior margin, 
with which it includes a space often subtriangular, 
traversed in most Diptera and many Hymenoptera 
by another nervure; and in many Tegmina and 
Hemelytra by several*. In these kinds of upper- 
wing it is in many cases accompanied by a fold; and 
the part between it and the interior margin seems 
often capable of separate motion. 
g. Neura Axitiaris (the Axillary Nervure). The short 
h. 
E. 
F. 
G. 
f. 
e 
nervure, where there is only one, intervening be- 
tween the anal nervure and the interior margin; 
replaced in some Musctde by a spurious ner- 
vure °, 
NEuR# Spuri& (the Spurious Nervures). Very ob- 
solete nervures, sometimes found in addition to 
those usually occurring; as in Syrphus*. 
Stigma (the Stigma). A corneous spot or plate, sup- 
posed to contain fluid, in the anterior margin of the 
upper wings; often produced by the conflux of the 
costal and postcostal nervures 4. 
ParasticMa (the Parastigma). A corneous spot be- 
tween the costal and postcostal nervures, distinct 
from the Stigma observable in the Libellulina. 
Loxsu i (Lobuli). One or more rounded portions of 
the base of the wing, separated from the rest by fis- 
sures peculiar to the Muscid@, and the under-wings 
of some Hymenoptera °. 
TEGULE (the Tegul@). Small corneous concavo-con- 
Puate X. Fic. 5—15. nv’. > Tbid. o-. 
Ibid. Fic. 14. p>. 4 Ibid. Fic. 11. m'”’. 
Ibid. Fic. 14, 15. 2’. 
