268 
Psyche 
[December 
this junction takes place at a point about two-thirds of the dis- 
tance along the anterior border. The margin of the remainder 
of the wing carries no vein. The second longitudinal or common 
posterior [sub-stem vein] bifurcates almost immediately beyond 
its origin, the bifurcation resulting in the discoidal [fourth longi- 
tudinal; Mi + 2 ] and the true posterior [fifth longitudinal; M 3 + 
Cui.] The first of these runs at first a little toward the hind mar- 
gin, thence with a bend toward the fore margin, so that the first 
articular cell [first basal cell; RJ, lying between the cubital 
[third longitudinal; R4+5] and discoidal [fourth longitudinal; 
Mi + 2 ] and closed by the transverso-media [anterior cross-vein; 
r-m], is very angular in its outer portion. After being connected 
with the cubital [third longitudinal; R 4 -KL at a point about 
two-thirds along the cubital, by means of the transverso-media 
[anterior cross- vein; r-m] just mentioned, the discoidal [fourth 
longitudinal; Mi + 2 ] runs in a gradual curve toward the lower 
margin of the wing, where it ends in about the fourth of the 
lower margin. The other branch, the true posterior [fifth longi- 
tudinal; Ms+Cui] runs, also with a gentle curve, toward the 
same border, where it ends about the middle. The transverso- 
discoidal [anterior basal cross- vein; MJ unites it with the discoidal 
[fourth longitudinal; M x + 2 ] at the point where that vein forms the 
above-mentioned bend, thus forming the discoidal cell [second basal 
cell; M.] There are no transverso-posterior veins [posterior 
cross-vein; m and posterior basal cross-vein; Cu 2 .] The anal 
vein [sixth longitudinal; An] has a double origin, runs with a 
strong curve to the hind margin of the wing, and ends at a point 
three-quarters of the way along the hind margin, as measured 
from the tip of the wing. The several veins which form together 
what we call the anterior system, are all crowded near the fore 
margin of the wing, and this is true also of the discoidal [fourth 
longitudinal; Mi+ 2 ], so that the cells and spaces between the 
veins are very long and narrow. Only the three posterior and 
the axillary cells [R 6 ; M 2 ; Cui +lst A; and 2d A] are large and 
wide. The crowding of the veins near the fore margin of the 
wing is also observed in Ornithomyia, though not as pronounced 
as in Lynchia, and consequently the cells mentioned above are 
not so much lengthened and not as narrow as in Lynchia. Another 
