50 THE ENTOMOLOGIST. 



Among the fossils received from Mr. Figgins, I also found 

 the third known specimen of Megaxycla petrefacta, Brues (14 mm. 

 long), and the second known example of the caterpillar Phylle- 

 destes vorax, Ckll. 



Cimbex vetusculus, n. sp. 



Male. Length 17*3 mm., of the usual form, with the stout hind 

 legs projecting from the sides of the abdomen ; head, thorax, abdo- 

 men and legs black ; wings hyaline, suffused with brown in the 

 vicinity of the stigma, veins dark brown. Compared with a male 

 Cimbex americana, Leach, from Boulder, Colorado, there is little 

 difference except in size. The interradius is more oblique in the 

 fossil, and the second recurrent nervure does not meet the 

 transverse-cubital, but ends some distance before it. I find, 

 however, that some recent specimens have the second recurrent 

 distinctly before the first (morphologically second) transverse-cubital. 

 -The scanty hair on the body agrees with Cimbex and not with 

 Trichiosoma. 



Wing measurements in microns : lower side of radial cell from 

 interradius to apex, 3170 ; radial cell on second (morphologically 

 third) cubital, 960 ; end of second recurrent nervure to first inter- 

 cubitus (transverse-cubital), 590; end of first recurrent nervure to 

 end of second, 1455 ; lower side of first discoidal cell, 1690 ; lower 

 end of basal nervure basad of nervules, 95. 



Eriocampa disjecta, n. sp. 



Length 11 mm., anterior wing 7 mm.; head and thorax black; 

 abdomen narrow, ferruginous, with the last two segments darkened ; 

 wings clear, stigma and nervures ferruginous. Compared with 

 Macgillivray's figure (' Proc. U.S. Nat. Mus.,' vol. xxix, pi. 28) of 

 E. ovata, L., it differs thus: radial cell longer and more tapering, its 

 lower side before apex gently curved inward; interradius curved; 

 distance between basal nervure and nervules greater ; third cubital 

 cell narrower in proportion to its length ; anterior and posterior 

 sides of first discoidal cell nearly parallel, slightly converging above, 

 but basal side (basal nervure) considerably longer than apical ; first 

 discoidellan (hind wing) considerably longer. 



Among the fossils it is nearest to E. pristina, Ckll., which is 

 about the same size and similarly coloured, but the apical part of 

 marginal cell is much more produced than in pristina, and there are 

 many other differences in detail. They agree in having the third 

 intercubitus arched inward. 



Wing measurements in microns: upper side, of radial cell from 

 stigma to apex, 2120 ; lower side of radial from third intercubitus to 

 apex, 1185; lower end of interradius to third intercubitus, 255; 

 second intercubitus to lower end of interradius, 690 ; upper side of 

 second cubital cell, 960 ; depth of stigma, 430 ; first cubital on first 

 discoidal, 415 ; second cubital on first discoidal, 350 ; second inter- 

 cubitus to second recurrent, 400 ; basal nervure, 1120 ; apical side 

 of first discoidal, 605; first discoidal on submedian, 445; first dis- 

 coidal on first brachial, 620. 



