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Psyche 
[June- Sept. 
flattening and production of the head have changed their 
aspect in Reuteriella. 
The process arising from the ventral internal margin of 
the pygophore of the male genitalia of R. flavescens is sec- 
ondary, and of only specific value as a diagnostic character. 
Quite apart from structure, in appearance, habits and colora- 
tion, Reuteriella spp. and Eurinoscopus spp. are very similar. 
If it is accepted that Reuteriella should be grouped with 
Bythoscopus rather than in the Jassinae, there seems to be 
no good reason why Hecalus , Parablocratus and Spanber- 
giella should not also be placed in the Bythoscopidae. Al- 
though species in these genera may lack the character of 
having R4 + 5 fused apically with Mi + 2 in the wing, all have 
similarly shaped heads and pronota and flattened hind tibiae 
with an almost identical armature of spines. Furthermore, 
the tegminal venation is not basically dissimilar. Figures 
are given (Fig. 4, d-g) of Spanbergiella vulnerata (Uhl.) 
and Parablocratus glaucescens Fabr. (a Tunisian species) . 
The relationship of Gypona to Bythoscopus is not quite 
so apparent, but it is believed that Krisna strigicollis (Spin.) , 
which occurs in Borneo (Fig. 5 a-e), is close to Reuteriella. 
A comparison of these figures with Figure 5 a^di suggests 
that the two genera are not far removed from each other. 
Moreover, if Penthimia is grouped with Gypona , as is usually 
done, then the case for the inclusion of Gypona in the Bytho- 
scopidae is strengthened. A comparison of the head of 
