52 Psyche [June 
Raphidia (Fig. 16) does not seem to be very like any of the other 
Neuroptera here figured so far as its terminal structures are con- 
cerned. It has an arched dorsal plate “‘sa’’ which may represent 
the supraanal plate, or epiproct, beneath which are two processes 
“9,”’ provisionally homologized with the gonopods “g” of Fig. 
10, ete. The two penis hooks “pu” of Raphidia (Fig. 16) are 
apparently homologous with the structures labeled “pu” in Fig. 5 
of Mantispa, and the median hook “mu” of Fig. 16, is possibly 
homologous with the median hook “mu” of Fig. 5, although I am 
somewhat at a loss to account for the homologies of the structure 
“mu” of Figs. 5 and 16, in other forms. 
The Coniopterygide (Fig. 11) are too small and highly specialized 
for one to be able to make very much out of a study of their parts. 
The hypandrium “hy,” of Fig. 11, is comparatively well developed, 
and the structures labeled “pu”? appear to represent the penis 
hooks “pu” of the other Neuroptera. The terminal structures of 
the Coniopterygidz appear to resemble those of the Planipennia, 
as much as any other Neuroptera. 
Turning next to the consideration of the genitalia and terminalia 
of the Mecoptera, we find two types represented, namely, those with 
forceps-like gonopods (e. g., Figs. 24, 20, 23, 27, and 28) which are 
of extreme length in Merope (Fig. 24 “g’’), and a second type 
represented by the Bittacus-group (Figs. 18 and 22) in which the 
gonopods are not developed in the form of forceps-like structures. 
In Vol. 27, page 298 of the Entomological News for July, 1916, I 
suggested that the Merope type of Mecoptera represented a sub- 
order called the “‘Promecoptera,”’ in which the wings present a 
very primitive venation, the head is not greatly elongated, etc. 
Merope, however, is quite closely allied to the other members of 
the Panorpa-group, and should be included in it, so that there 
are but two principal groups of living Mecoptera (the Bittacus- 
type and the Panorpa-type) and these two might be considered as 
representing two suborders of the Mecoptera, although they are 
more probably of merely superfamily rank. Tillyard, 1917 
(Proc. Linn. Soc. N. S. Wales, 42, p. 188), applies the term Pro- 
tomecoptera to a new order of fossil insects which in certain re- 
spects resemble the ancestors of living Mecoptera. 
Although I feel certain that such forms exist, I have been unable 
to find any Neuroptera in which the gonopods are in the form of 
