34 
Psyche 
[March 
and the photograph seems to leave a possibility that some has 
been lost, as indicated by dotted lines in the figure; M and Cu 
are well bound by cross-veins, though not actually anastomosing, 
and the veinless paths separating them from R and the anal 
system are striking, — the most distinctive feature of the wing. 
On the other hand the Coleoptera, as shown by the forms 
that have veins on the elytron (fig. 4) have unbranched veins, 
with regularly arranged cross-veins forming double rows of cells 
between them; and M and Cu noticeably avoid each other, each 
tending to fuse with its other neighbor in the outer part of the 
wing, — a very distinctive wing. 
In summary, — A: Resemblances of Protocoleus to Orihoptera 
and partly to Hemiptera: 
1, Precostals present 
2, Main veins richly branched 
3, Cross-veins few, and oblique 
4, Anal lobe extended basally 
5, M associated with Cu, R and anals independent 
6, Plical vein (the one lying in the fold) running to inner 
margin, as in cockroaches and Hemiptera 
B: Characters typical of the Coleoptera (but shared by Di- 
ploptera in the Orthoptera s. 1.) 
1, Inner margin straight, the elytra no doubt meeting in the 
middle of the back 
2, Apex pointed (Tillyard in lit.) and located at M rather 
than R. 
C: Characters of the Coleoptera not shared by Protocoleus : 
1, Costa marginal (also some Orthoptera, but not universal) 
2, All veins simple (the prototype no doubt with terminal 
branching) 
3, Cross-veins numerous, two-ranked and transverse 
4, Base of wing simple, the anal veins when traceable run 
directly into the articulation 
5, M running into R, Cu into the plical vein. 
6, Plical vein running to apex. 
I then formally refer Protocoleus to the Orthoptera, where it 
will form a well characterized family related to the Gryllacrididse, 
