BY FREDERICK A. A. SKUSE. 677 



*' 5- — Nig7'a, obscura ; abdomen jjiceo-nigrum^ thorace duplo 

 (ongms ; pedes graciles, sat longi ; alee cmerece. 



" Black, dull. xWxlonien piceous-black, about twice the length 

 of the thorax. Legs slender, moderately long. Wings grey ; 

 radial vein and cubital vein black ; the rest paler ; basal part of 

 the subapical vein longer than its fork. Length of the body, 1^ 

 line ; of the wings, 3 lines. 



" Van Diemen's Land." 



Obs. — Without a re-description of this sp'ecies it is impossible 

 to say to what section or sub-section it may be referred, but 

 Walker places it in the sub-division " b " of Meigen's division 

 "A," which corresponds to its present position. 



II. First longitudinal vein joining the costa before the 



BASE OF THE FORK. 



A. Hal teres black or brown, the stalk wholly or partly yellow, 

 yellowish or whitish. 



1. Palpi black or brosvn. 



B. Cross-vein situated at the middle of the first longitudinal 

 vein. 



b. Ti]) of the second longitiidinal vein and tip of the posterior 

 branch of the fork equally near the apex of the wing. 



100. SCIARA FINITIMA, Sp.H. 



5. — Length of anteunse 0"055 inch ... 1-39 millimetres. 



Expanse of wings 0-140 x 0-050 ... 3-55x1-27 



Sizeofbody 0-130x0-030 ... 3-30x0-76 



Antennae pitch-brown, with a dense pale yellow pubescence ; 

 not very slender, and not quite as long as the head and thorax 

 together ; basal joints deep brown with a somewhat sparse, 

 minute pubescence ; flagellar-joints sub-sessile, 2 to 3 times as long 

 as broad. Head black. Eyes contiguous above. Palpi black. 

 Thorax black, levigate, with three longitudinal rows of short 

 yellowish hairs which extend from the coUare almost to the 



