1917] Fossil Insects 19 



APPENDIX 



HYMENOPTERA. 

 Protofoenus new genus (Evaniidas). 



Antennas long, filiform; head broad, eyes rather small; mandibles 

 strongly incurved and sharp apically, apparently quite simple; legs 

 slender, hind tibiae long and slender, not at all clavate; abdomen of 

 female thick and rather short, with a rather long very slender ovipositor 

 directed obliquely upward; wings ample, venation of anterior pair 

 nearly. as in Foenus, with the same kind of first discoidal cell, in the 

 same position, but the apical side of submedian cell oblique, not bent 

 in middle, and the basal side of second discoidal as shown in figure. 

 The second antennal joint is distinctly modified, broadly pyriform. 

 The scutellum is elevated, rounded in lateral profile. 



Protofoenus swinhoei n. sp. (Fig. 1, A, anterior wing; B, abdomen; 

 C, hind leg; D, head; E, base of antenna; F, mandibles). 



Length about 4.6 mm. ; wings translucent, the apical half suffusedly 

 dusky, stigma and nervures fuscous; antennas, face and front black, 

 but the broad cheeks entirely honey-color; thorax and abdomen black; 

 legs mainly dark, but hind femora pallid except at base, and hind tibiae 

 except at apex; the minute claws appear to be quite simple. 



In Burmese amber; received from Mr. R. C. J. Swinhoe. 



This remarkable little insect caused me much perplexity. It 

 seemed to resemble the Braconidas, but it was seen to possess a very 

 well developed costal cell. From a sketch of the venation, omitting 

 the characteristic first discoidal cell, which I had not at first clearly 

 seen, Messrs. Rohwer and Gahan were positive that it could not be 

 a Braconid, and suggested affinity with the Proctotrypidas. On further 

 study, viewing the specimen at different angles and in different lights, I 

 was able to make out all the characters which placed it positively in 

 the Evaniidas, nearest to Foenus, from which it differs in the shape 

 of the abdomen and form of the hind legs. It is a primitive type 

 related to Foenus, possibly the ancestral form of that genus, although 

 on superficial examination one would not suspect the relationship. 



Hyptiogastrites new genus (Evaniidce). 



Related to Hyptiogaster but still more primitive; marginal cell 

 truncate at base; first discoidal small, not produced apically; head 

 much broader than thorax; antennje long, filiform, apparently as in 

 Evania; male abdomen cylindrical; legs of moderate length; claws 

 small; hind tibiae thickened, tarsi long, the hind femora, tibias and tarsi 

 subecjual; hind spurs short. 



