86 
Psyche 
[March-June 
be in this category. Details of the venation are shown in figure 6. 
As preserved, the wing is dark brown, with several white spots and 
bands (figure 9), as frequently seen in existing panorpids. 
Type: No. 69173, U. S. National Museum; collected by A. 
Kuznetzov, “on the Amagu River, Maritime Province, coast of 
Siberia, opposite the southern end of Sakhalin Island.” Rohdendorf 
(1957) records the locality as in the Lower Amursk Region of the 
USSR, on the bank of the Kudya River, a tributary of the Amagu 
River, and indicates its age as Lower Miocene. Cockerell states 
(1924) that the flora of the deposit, including such genera as Ginko , 
Cornus, Taxodium, and Quercus , indicates a warm-temperate climate. 
The type specimen consists of a very well-preserved hind wing, 
lacking only a part of the apical-posterior region (figure 9). 
Cockerell placed Dinopanorpa in the family Panorpidae, Tillyard 
(1933, P- 26) transferred it to the extinct family Orthophlebiidae 
(otherwise known only from the Triassic and Jurassic periods) and 
Martynova (1962, p. 291) considered it a synonym of Orthophlebia 
in the same family. Actually, as noted by Cockerell, Dinopanorpa 
presents, in the hind wing, a remarkable combination of characters. 
The presence of 5 strong veinlets between Sc and the costal margin 
is a feature that does not occur in the Orthophlebiidae or Panorpidae, 
although it is seen in some of the Permian and Triassic genera of 
other families. The form of Ri, extending nearly to the wing apex 
and directed posteriorly in the apical region, is unique in the known 
Mecoptera, extinct and Recent, as noted by Cockerell ; in other 
members of the order, Ri is much shorter and is curved anteriorly 
at its termination. Cross veins are at least twice as numerous in 
Diwopanorpa as in the Panorpidae and Orthophlebiidae. Another 
peculiar feature, also noted by Cockerell, is the long and oblique 
m-cu cross vein (figure 6), although it could be an abnormality in 
this particular wing. In contrast, the structure of Cu, including its 
stem, the nature of its branching and the coalescence of CuA and 
CuP (with M and iA respectively), is virtually identical with that 
in the Panorpidae (figure 7) but, incidentally, quite unlike that 
of Orthophlebia (figure 8). The extensive branching of Rs, with 
at least 8 terminal branches, is totally unlike the condition in the 
Panorpidae, with 5 branches to Rs. Dinopanorpa also has a 5- 
branched M, although that vein is rarely more than 4-branched in 
Panorpidae. 
In view of the differences and peculiarities noted above, assignment 
of Dinopanorpa to either Orthophlebiidae or Panorpidae seems un- 
