CKCTDOHIYIA. 113 



times the length of their petioles. Thorax testaceous on each side. 

 Wings slightly greyish, not ciliated ; veins black ; subcostal vein much 

 less than half the length of the wing ; cubital curved, ending near the 

 tip of the wing ; subanal distinct ; first branch of the anal slight, run- 

 ning very near the subanal ; second branch curved very abruptly and 

 hardly obliquely to the hind border. lialteres whitish. Oviduct short. 

 Legs dull testaceous, long, slender. 

 Not common. (E.) 



115. prBSCOX, Winn. Linn. Ent. viii. 276. 66 (1853). Fmn. ni- 

 gra, palpis fuscis, antennis corpore brevioribus, articulorum petiolis 

 brevissimis, thorace e pilis llavis bivittato, scntello fusco-rufo, alis sub- 

 cinereis nigro-cinereo-pilosis, venis nigro-fuscis, halteribus pallide fuscis, 

 abdomine nigro-fuscis iucisuris albidis, oviductu longissimo laraellis 

 duabus minimis, pedibus obscure fuscis. Lonjj. \\ lin. 



Fern. Black. Palpi brown. Anteiuue shorter tlian the body ; joints 

 six times the length of their petioles. Thorax with two stripes of yel- 

 low hairs ; scutellum ferruginous. Wings greyish ; transverse veinlet 

 situate at some distance before the middle of the subcostal vein ; anal 

 vein and its second branch forming an. almost right angle. Oviduct 

 very long, brownish-yellow, with tw^o very small valves. 



Appears in March in woods, especially on fresh-split oak stack- 

 wood. 



116. conformis, n. Fceui. nigro-fusca, ca])ite nigro, antennis 

 nigris corpore brevioribus, scufello thoracisqne lateribm pallide testuceis, 

 alis subcinereis, venis nigris, halteribus albis, pedibus testaceis. Long. 

 1|-; alai-. 1 lin. 



Fern. BlacJdsh-broicn. Head black. Antenna) black, twelve-jointed?, 

 verticillate-pilose, shorter than the body ; joints snbcylindrical, full 

 thrice the length of their petioles. Scutellum and sides of the thorax 

 in front and at the base of the loings pale testaceous. Wings gre_\ ish ; 

 veins black ; subcostal *ein less than half the length of the wing ; cu- 

 bital curved, ending at some little distance from the tip ; subanal dis- 

 tinct ; first branch of the anal slight, running almost close to the sub- 

 anal ; second branch inclined obliquely and rather abruptly to the hind 

 i)ordcr. Halteres white. Legs dull testaceous, long, rather slender. 



Not common. (E.) 



117. tendens, n. jl/r/.v, pallide fusca, capite thoracisque disco ni- 

 gro-fuscis, antennis 2 l-articulatis corporis longitudine, alis subcinereis, 

 venis nigricautibus, halteribus pedibusque albidis. Long. 2 ; alar. 6 lin. 



Male. Pale brown, slender, linear. Head, disc of the thorax, and 

 laetathorax blachish-brown . Antennae twcnty-four-jointcd, submonili- 

 form, slightly vcrticillate-pilosc, as long as the body ; petiole of each 

 joint as long as the incrassatcd elliptical part. Wings greyish, hardly 

 ciliated ; veins blackish ; subcostal vein very little less than half the 

 length of the wing ; cubital slightly curved, ending on the hind border 

 at a short distance from the tip ; sul)apical a])parcnt along the a])ical 



VOL. IV. u 



