T. I). A. Cockevell—Arthro2:>ods in Burmese Amler. 365 



cells, but the outer side of second without any darkened or 

 distinct bounding nervure ; first submarginal very large, formed 

 as in Foenus ; second pentagonal, pointed basallj, truncate 

 apically, shaped as in Interaulacus; first discoidal very small, 

 long and narrow, its oblique apical and basal sides parallel ; 

 second discoidal large, formed approximately as in Psamme- 

 gischia ; brachial cell large, triangular. Hind wing as in 

 Hypt log aster. Head large and broad, with very prominent 

 eyes ; mandibles projecting, stout, strongly elbowed, apparently 

 bidentate ; thorax elongated, the mesothorax in lateral profile 

 flat, but anteriorly the thorax is bulging ; no evident pubes- 

 cence; antennae slender, the joints long; legs very long and 

 slender, posterior femora and tibiae neither swollen nor clavate ; 

 hind tibiae with two short but well-formed spurs ; claws ex- 

 tremely small. Abdomen missing. 



This peculiar genus appears to connect the Foeninae with the 

 Aulacinae, but it is to be referred to the Foeninae as a new 

 tribe Electrofoenini, contrasted with the modern Foenini, typi- 

 fied by Foemis and allied genera. Type the following species. 



Electrofcenus gracilipes uew species. 



Head, thorax, antennae and legs black ; wings hyaline, with 

 dark red-brown stigma and nervures. Length of head and 

 thorax about 3""" ; of anterior wing 4. Claws quite simple, 

 as in Psammegischia^ but more slender. Hind femur and 

 tibia each about 1665 microns long; hind tarsal joints measur- 

 ing in microns, (1) 800, (2) 240, (3) 175, (4J 80, (5) 145. 



Burmese amber, from Mr. R. C. J. Swinhoe. The dominant 

 Oriental Evaniids to-day are such genera as Evania and Prose- 

 vania^ very different from the amber fossils. 



Bethylitella new genus (Belhylidge). 



Head elongate, subcylindrical, much as in female Isohrach- 

 ium I eyes very small; mandibles large, parallel-sided, with 

 five equal small teeth on apical margin ; antennae 13-jointed, the 

 scape stout and placed on a conical elevation, the flagellar joints 

 stout, successively longer, the last considerably the longest ; 

 thorax long and cylindrical, abruptly obliquely truncate poste- 

 riorly ; anterior legs with coxae very stout, with a shnrp but 

 short tooth behind ; their trochanters long and slender; their 

 femora stout, concave above and convex below ; their tibiae 

 stout and short, with a long spur and two short spines at apex ; 

 their tarsi five-jointed, the first joint a little longer than the 

 next three together, strongly curved; the next three joints 

 small, successively decreasing in size, the last slender, as long 

 as the third and fourth together, with rather large simple claws 

 and a large pulvillus ; hind femora very stout, their tibiae slen- 



