144 PROCEEDINGS OF THE AMERICAN ACADEMY 



broader than the thorax, with gently rounded sides and well-rounded 

 tiji ; no appendages are discoverable on any of ihe specimens. 



Legs poorly preserved on all specimens; apparently they are of 

 medium loniitli. 



Win^s rather more than four times as long as broad, the middle of 

 the front pair not reaching the tip of the abdomen, ver}'^ uniform and 

 regular, of nearly equal breadth throughout the middle two-thirds, the 

 costal margin straight until just before the tip. Scapular vein par- 

 allel to the margin, the subcostal area infumated ; veins below the 

 scapular not determinable. Tlie basal scale appears to be small, 

 broad, triangular, its costal border swollen. 



Length of. body, 6.5-7,5, av. 7.15 mm.; of abdomen, 8.5-4.5, av. 

 4.15 mm.; breadth of pronotum, 1,2 mm.; of abdomen, 1.5 mm.; 

 length of antenufc, 1.2 mm. ; of front wing, 7.75-9.25, av. 8.25 mm. ; 

 breadth of same, 2 mm, 



Florissant, 5 specimens, Nos. 2329, G049, 7393, 11752, 14980, 

 three of them in pretty good condition. 



EuTERMES Meadii nov. sp. 



Head very regularly obovate, broadest just behind the middle, Avhcre 

 the small eyes, sc:ircely projecting, are situated, not broader behind 

 than in front, the hind margin strongly rounded, the whole fully half 

 as long again as broad. Antenna) nowhere well preserved, but ap- 

 parently longer and with more numerous joints than in E. fossarum. 



Pronotum as broad as the head (?) and very short, probably more 

 than twice as broad as loDfj, the hind maruin not formin"- with the 

 sides a continuous curve, but in its middle half only sliglitly convex. 

 Meso- and metanotum quadrate, broader than the head, the mesono- 

 tum somewhat the larger, at least half as broad again as long. 



Abdomen rather stout, longer than the rest of the body, the sides 

 nearly parallel, the tip broadly rounded, and, as far as can he made 

 out, unprovided with terminal appendages. 



Legs moderately long and stout, the tibia3 armed with a pair of 

 spines at apex, the front tibinc about as long as the pronotum. 



Wings long, slender, and uniform, four limes or slijihtly less than 

 four times as long as broad, the middle of the front jiair reaching the 

 tip of the abdomen, broadest at or slightly beyond the middle, the 

 lower border slightly arcuate throughout. Costal margin straight in 

 the basal threc-fourihs of the wing. Scapular vein parallel to the 

 margin, the subcostal area scarcely infumated. Veins below the scap- 



