364: T. D^ A. Cocker ell — Arthrojjods in Burmese Arriber. 



structure of the legs. The general tendency has been to 

 recognize only one or two genera, but we have in the living 

 Enicocephalidse the remnants of a once numerous group, and 

 it seems reasonable to consider the more striking morphological 

 distinctions generic. Disphcerocephaliis is not genericaliy 

 separable on account of the undeveloped wings, but the other 

 characters cited above are sufficiently distinctive.* 



Enicocephalus sicmhoei new species. 



Length about 3"™ : brown, the hemelytra dilute brown, 

 coriaceous; venation apparently as shown in figure, but the 

 hemelytron figured is seen in very oblique view, and is actually 

 no doubt considerably broader ; head and thorax dorsally with 

 much erect fuscous hair ; anterior part of head separated from 

 posterior bulbous portion by a distinct though thick neck, the 

 posterior part strongly elevated dorsally ; costa angulate near 

 base, the costal region broadened basally much as in Hymeno- 

 coris harhatiis ^ antennse liairy, long and slender, flattened, so 

 that they appear extremely thin in one view; middle and hind 

 tarsi very slender, apparently two-jointed (the basal joint very 

 short), terminating in two long simple claws. In Systellodei'u^ 

 or Stenopirates hicej)S (Say) these tarsi are short and stout, 

 entirely different from those in our fossil. 



The following measurements are in microns : Length of 

 hemelytra about 1760 ; length of rostrum about 610 ; antennal 

 joints, (1) 192, (2) 690, (3) 528, (4) 512, the last joint 40 wide 

 on the flat side, but only 16 seen on edge ; middle tarsus 320 

 long, hind tarsus 448 (both excluding claws). The anterior 

 legs have only one claw. 



Burmese amber, from E. C. J. Swinhoe. Yery distinct 

 from E.fossilis Ckll., also from Enrmese amber, by the vena- 

 tion and long antennae. The specimen is in the same slab as 

 the type of Disphcerocephalus^ and 39°^"" from it. 



Judging from the Burmese fossils, the modern Enicoceph- 

 alidse average much larger than the ancient ones. 



Hymexoptera. 



Electrofcenus new genus {EvaniidcB). 



Anterior wings folded longitudinally, as in Foeninae. but 

 venation of Aulacinee. Stigma well developed, approximately 

 as in Hyptiogaster ; marginal cell large, its face on first sub- 

 marginal about as great as that on second ; two submarginal 



* Since the above was written, a second species of DisphcerocpphaJushiis 

 been found. It is about 8'"™ long, and has well developed wings, 2688 microns 

 long; the anterior tarsus is shorter than the long claw : middle and hind 

 tarsi two-jointed, first joint very short. This is named D. macropterus n. sp. 



