^ ^( trhiiXlj^^ 



TETB>eDNEURA. 



43 



the tip of the wing ; first cubital areolet very narrow, about thrice 

 longer than broad ; subapical and siibanal veins slight, pale, secondary ; 

 fork of the former opposite the first cubital areolet ; fork of the latter 

 nearer the base of the wing. Halteres testaceous. Abdomen slightly 

 compressed. Legs blackish, rather sliort and stout ; coxa? and femora 

 testaceous ; hind tibite with very minute spines and moderately long 

 spurs. 



Not common. (E.) 



24. aliena, n. Mas, cinereo-nifjra, palpis, halteribus, abdominis 

 lateribus rautreque basim versus, coxis fcmoribusque testaceis, alis subci- 

 nereis, abomine subcompresso, femoribus posticis apice nigris. Long. 

 l\ ; alar. 2^ lin. 



Male. Clnereous-blaclc. Palpi testaceous. Antennae hardly longer 

 than the thorax, testaceous at the base. AA'ings slightly greyish ; sub- 

 costal vein very short, joining the costal before one-sixth of the length 

 of the wing ; radial joining the costal before two-thirds of the length ; 

 cubital ending at about five-sixtlis of the length; first cubital areolet 

 very narrow, full four times longer than broad ; subapical and subaual 

 veins slight ; subapical vein forked opposite the end of tlie first cubital 

 areolet ; subanal forked at the base of the wing. Halteres testaceous. 

 Abdomen slightly compressed, testaceous beneath and on each side toioards 

 the base. Legs rather short and stout ; coxae and. femora testaceous ; 

 hind femora with black tips ; hind tibiae with very minute spines and 

 rather long spurs. 



Rare. Found in June, on the banks of the Wve, near Chep- 

 stow. (E.) 



25. pictipennis, Hal. A. N. H. 11 (183S). Testacea, fronte ver- 

 ticeque subfuscis, autennis fuscis, alis hyalinis fasciis duabus fuscis, ab- 

 dominc fasciis nigris, tarsis fuscescentibus. Long. 1|-; alar. Z\ lin. 



Testaceous. Front and vertex brownish. Antennae brown, yellow 

 at the base. TTinr/s hyaline, with two brown bands ; one in the middle 

 of the wing, extending beyond the areolet, and sinuated thence to the 

 hind border ; the other subapical, extending to the tip of the radial vein. 

 First and second abdominal segments unspotted ; third and fourth 

 black, with testaceous hind border ; fifth and sixth almost wholly black ; 

 hypopygium testaceous. Tarsi brownish. 



Very rare. - Has been found once in Kent. In Mr. Haliday's 

 collection. (E.) 



26. halterata, Sta?g. 1). D. (ISIO) ; Zett. D. S. xi. 4138. 34 

 (1852). Testacea, vertice fronte antcnnisque nigro-fuscis, alis fusco- 

 venosis, vena pobrachiali Integra, areola minutissima, abdomine f/tsces- 

 cente. Long. 2-| ; alar. 4 lin. 



Testaceous. Vertex and front blackish-brown. vVntennae blackish- 

 brown, rather stout; first and second joints ferruginous. Thorax 

 slightly shining, with pale hairs. Wings hyaline; veins brown, rather 



