CECIDOMYIA. 127 



Fern. Yellow. Antenna thirteen-jointed, brownish, yellow at the 

 base ; joints and their petioles of nearly equal length. Thorax with three 

 blackish-brown stripes. Wings brownish, with dark grey pubescence ; 

 veins dark brown ; second branch of the anal vein curved to the hind 

 border. Halteres brown. Abdomen with hoary hairs. Oviduct short, 

 retracted, with two very small oval valves. Legs blackish-brown ; tarsi 

 whitish towards the tips. 



Lives in decayed wood. 



155. albitarsis, Meig. Zw.vi.268. 20(1840); Mcq.; Loew; Winn. 

 Fcem.flava, antennis fuscescentibus basi flavis 13-articulatis, petiolis non 

 elongatis, thorace vittis tribus contiguis nigris, alis fuscescentibus nigro- 

 cinereo-hirtis, venis nigro-fuscis, halteribus albis apice fuscis, abdominis 

 incisuris nigricantibus, pedibus nigro-fuscis, tarsis apice niveis. Long. 

 H lin. 



Fern. Yellow. Antennas thirteen-jointed, brownish, yellow at the 

 base ; joints twice the length of their petioles. Thorax with three con- 

 tiguous black stripes. Wings brownish, with blackish-grey pubescence ; 

 veins blackish-brown; anal vein and its second branch forming a 

 rounded obtuse angle. Halteres white with brown knobs. Abdomen 

 with blackish sutures ; its hairs whitish. Legs blackish-brown ; third 

 and fourth joints of the tarsi white. 



Lives in decayed wood. 



156. dorsalis, Winn. Linn. Ent. viii. 297. 88 (1853). Fcem.fusco- 

 flava, capite postice nigro, antennis nigris 13-articulatis corporis di- 



midio paullo longioribus, petiolis non longis, thorace vittis tribus con- 

 tiguis nigris, alis fuscescentibus nigro-cinereo-pilosis, venis nigro-fuscis, 

 halteribus flavis, capitulis subtus nigricantibus, abdomine fasciis nigris, 

 pedibus nigris, femoribus basi flavis. Long. \\ lin. 



Fern. Brownish-yellow. Head behind black. Antennae thirteen- 

 jointed, black, a little more than half the length of the body ; joints 

 more than twice the length of their petioles. Thorax with three confluent 

 black stripes. Wings brownish ; with blackish-grey pubescence ; veins 

 blackish-brown ; anal vein and its second branch forming a rounded 

 obtuse angle. Halteres yellow ; knobs blackish beneath. Abdomen 

 with black bands. Oviduct short, retracted, with two small, somewhat 

 rounded valves. Legs black ; femora and coxae yellow at the base. 



Habits unknown. 



157. venusta, Winn. Linn. Ent. viii. 299. 90 (1853). Mas,flava, 

 antennis nigris basi flavis corpore longioribus 16-articulatis, petiolis 

 albidis longissimis, thorace vittis tribus pallide rufo-fuscis, alis fuscescen- 

 tibus cinereo-pilosis, venis fuscis, pedibus longis pallide fuscescentibus, 

 tarsis albicantibus. Long. 2 lin. 



Male. Yellow. Antenna; sixteen-jointed, black, yellow at the base, 

 longer by nearly the half than the body ; petioles whitish, less by one- 

 third tJtan twice the length of the joints. Thorax with three pale red- 



