84 
Psyche 
[March 
The genitalia are rather “bulbous” and the basistyles or 
basal segments of the claspers of the male are rather short 
and stout; and the dististyles or distal segments of the 
claspers, unlike those of Merope (which has long slender 
dististyles) are shorter and stouter, and are somewhat fur- 
cate, with the exterior terminal branch curving outward 
(laterad) to some extent, apparently for the purpose of 
lying on either side of the median dorsal process (described 
above) when the genitalia are held forward in repose. 
I would designate this hitherto undescribed male as the 
allotype of Notiothauma reedi, McLachlan, and a detailed 
description of it will be presented in a later paper dealing 
with the morphology of this remarkable Mecopteron, which 
is the only scorpionfly with flat incumbent wings (see 
Plate 2). 
There is no fundamental difference between the wings of 
the male and those of the damaged specimen (presumably 
a female), so that the accompanying description of the 
wings of the supposed female will serve to illustrate the 
later description of the venation of the male, in describing 
the alar ossicles and other features 'of the basal region of 
the wing, in discussing the morphology of the male insect. 
The measurements of the wings are as follows: Length 
of fore wing, 23.5 mm.; greatest width of fore wing, 10 
mm. ; length of hind wing, 22 mm. ; greatest width of hind 
wing, 9 mm. The fore wings are more deeply pigmented 
and are ochreous, while the hind wings are more hyaline, 
and have a yellow tinge. The fore wings are like delicate 
tegmina, apparently derived from Protoblattoid (Proto- 
blattid-like) or Protorthopteroid (Protorthoptera-like) 
prototypes, but the hind wings have lost the anal fan char- 
acteristic of the Protoblattids, etc., as likewise have the 
Isoptera (except Mastotermes) , for that matter, which are 
the direct descendants of Protoblattoid forbears. The fore 
wings are somewhat broader in the distal half of the wing, 
and are broadly rounded apically, resembling in these re- 
spects the fore wings of the Protoblattids Asyncritus, 
Adiphlebia, etc., figured by Handlirsch, 1925 (Schroeder’s 
“Handbuch,” Band 3), or the Protorthopteroid insect 
Metropator, figured by Handlirsch, 1909 (Die Fossile 
Insekten). These are Protoblattoid features pointing to a 
