84 
[August, 
basis of the vasa interna. In its first fifth the third ulnar rib runs close ' 
to the first vas internum ; it is then curved outwards, and sometimes ' 
receives a simple supplementary vein from before. Shortly after this, 
it either becomes trifid or is resolved into an anterior simple, and a 
posterior bipartite vein. The posterior of the moderately straight vasa 
interna sends a recurrent vein towards the base of the wing. From 
the costa to the vas ulnare inclusive the reticulation is well defined. 
Forceps of ^ slender and jointless (apparently). Legs feeble and 
short. The two caudal setae are horizontally patent in the dried ^T • 
Section B, G. curlus, lIa,gen,~Palinffenia curta, Hag. List of S. Americ. 
Neuropt. ; Smithsonian Miscel. Coll. 1861, p. 304. = Pal. 
alUJilum, var., Walk. Brit. Mus. Cat. 
Distrib. — The Amazons, 1 sp. 
In this species the cross-veinlets are numerous throughout the 
extent of the anterior wings ; and the forceps of the ^ are moderately 
stout and two- or three-jointed. 
Genus Polymitarcts,* nov. gen. 
Syn. Palingenia, Burm., part. 
Type P. virgo, 01. 
Distrib. — Europe and Egypt, 2 or 3 sp. 
The anterior ulnar rib is bifid, and is met in front, near its base, 
by a bipartite supplementary vein whose fork includes several veinlets. 
The fork of the rib includes one supplementary vein. Second ulnar 
rib simple. The posterior division of the bipartite third rib is itself 
bipartite, and is followed by upwards of four supplementary veins. 
These are succeeded in their turn by some irregular veinlets from the 
internal margin. The recurrent vein from the robust second vas in- 
ternum receives two or three simple veinlets from the inner mai'gin. 
Yasa interna moderately straight, and simple. Eeticulation rather fine. 
Forceps of ^ four-jointed ; their second joints the longest. 
Genus Palinoenia, restricted, Westwood. 
Syn. Palingenia, Burm., part. 
Type P. longicauda, 01. 
Distrib. — Europe, 1 sp. ; Asia Minor, 1 sp. ? ; Silhet and Boi-neo, 
1 sp. (three species in all) ; and, perhaps, one or two S. American 
species. 
• Polymitarcys (Gr.) — poljmitos-arkus = a net consisting of many thread.H, 
