178 
Psyche 
[June 
very obliquely arranged; about eight simple anal veins; cross veins 
few and weak. Hind wing: length 25.5 mm, width 9 mm. Anterior 
margin more concave than in the fore wing. Anal area very much 
broadened just beyond the base, the inner angle of the wing nearly 
a right angle. 
Body structures: Head apparently short and broad, with a rec- 
tangular clypeus. Prothoracic lobe: length 2.8 mm, width 2 mm; 
small and strongly sclerotized. Prothoracic veins about ten in num- 
ber, cross veins very dense; mesothorax slightly shorter than the 
metathorax. 
H. joannae is smaller than either ele gaits or bonnieri and has the 
wing membrane much thicker. The supporting structures in the wing 
are consequently less developed, the cuticular thickening extending 
for a very short distance on Ai, and there is only one supporting 
cross vein as well as a few weak cross veins. These same features 
are present in the ornata-lehmani group. Convergence of several 
morphological features is readily seen in this series of species. The 
head m joannae is short and broad, as it is in bonnieri , the shape of 
the prothoracic lobes and the venation are as in bonnieri , but the 
small size of the insect and the more heavy sclerotization is almost as 
in lehmani. The shape of the fore wings resembles lehmani most 
closely; the lack of small twigs on the veins and the rectangular 
shape of the anal area of the hind wing are much as in ornata’, the 
obliquely arranged cubital veins are as in ornata and lehmani; the 
color patern is much as in lehmani ; the cuticular thickening as in 
ornata. From these observations, it would seem that joannae , ornata , 
and lehmani might be considered as forming a separate genus, but 
at the present time it seems more advisable to leave them in a single 
genus until more is known about other species of the family. 
Plomaloneura ornata Brongniart 
Figure 7 
Homaloneura ornata Brongniart, 1893: 321, pi. 17, fig. 16; pi. 18, figs. 6-7; 
Handlirsch, 1906: 109, pi. 12, figs. 5-6; Lameere, 1917: 147; Handlirsch, 
1921: 136, fig. 64. 
This species is based by Brongniart upon specimen 17-16, the wings 
of which are shown enlarged on figures 6 and 7 of plate 18. The 
specimen is a female, with two almost complete wings, with the 
abdomen showing cerci and the ovipositor, and there are vaguely 
preserved parts of the head and the thorax. As noted above, specimen 
17-15 was erroneously determined by Brongniart as the counterpart 
