DIPTEKA SCIOMYXIK I 54i> 



length: tin- lit'tli longitudinal vein is lust just before reaching the margin 

 and the sixth runs half-way to it: the second and third longitudinal vein- 

 separate just, over the extremities of the small basal cells, and originate 

 from a transverse vein which unites the first and fourth longitudinal veins 

 before the middle of the liasal cells. 



Length of the wing, l.. r >"""; breadth, 2""". 



Quesnol, British Columbia. Three specimen-., Xos. 2, 12. 4.". (Dr. G. 

 M. 1 >a\vson, Geological Survey of Canada < 



SrlOMY/A.' MA NT A. 



I'l. 4, Fifj. !l; I'l. !, Ki-s. 1-t;, 15. Hi. is, L'O. 23, _'', 28, 29. 



Soiomy a ' manca Smild.. Hull. r. s. ii.-<ii. Cr.^r. Snrv. T, n . IV. 756 ' - i-r- 



This lly , extremely abundant in the (Jreen Uiyer sliales in fact out- 

 numbering all the other 1 tipfera together is temporarily placed in this 

 genus, because its characters seem to agree better with those of the famiK 

 Sciomy/ida- than of any other ; yet it can not properly lie placed in an\ of 

 the genera known to me. I should be inclined to place it near lih-pharop- 

 tera in the Helomyzidse, but all the tibi.-c are bristled throughout. Its gen- 

 eral appearance is that of the Kphydrinida', but the bristly surface of the 

 middle tibia- would allow us to place it onlv in the Notiphilina. from which 

 it is excluded by the want of pectinations on the upper side of the anteunal 

 bristle. The want of complete neuration prevents me from designating it 

 at present by a new generic name, which it can hardly fail to require as 

 soon as that is known; only two or three of the three-score specimens 

 before me have any important part of the wings, and this constant frag- 

 mentary condition of the fossils has suggested the specific name. The 

 genus in which it would tall maybe partially characterized as follow*,: 



Body compact, stout: the head comparatively- small, perhaps one-third the 

 bulk of the thorax, about throe-fourths its width, with large, naked eyes, 

 the front between them nearlv eiptal.and pretty broad. oMiipiely sloped, 

 and slightly tumid on ;i .side view, BO as to project considerably l>elo\\ - : a 

 few curved bristles pn.j.-ct from its summit. Antenna- with the tla^-llmn 

 Bubglobose, scarcely longer than broad, much larger than the joints of the 

 scape, and above bearing at its tip a curved, rather short, naked, tapering 

 Style, SCarcel) longer than the ||.i--elhiiii proper and hlnntly pointed: in 

 several specimens in which (his part is pretty \\ell pre.ser\ed this is iliva 



