PLATYPEZID^E. 223 



anal veins and the posterior branch of the prsebrachial. The 

 mediastinal vein is very faint and close to the subcostal. 



These flies are small, very active, and abound from, the 

 beginning of spring till the end of autumn on shores, marshy 

 woods, and in most grassy spots. 



1. lutea, Pz. ! fn. cviii. 20, 21 (1815 ?) ; Mg. ; Mq. ; Ztt.furcata, 

 Fin. Testacea, alls sublimpidis. Long. l^-H ; alar. 3-3^ lin. 



Testaceous. Eyes and antennae black. Wings almost colourless. 

 Halteres pale yellow. 



Generally distributed. (E. S. I.) 



2. flavicauda, Mg. zw. iv. 107. 2 (1824); Mq. ; Ct. ! b. e. 761. 

 riparia ? Mg. ; Mq. rivalis ? Mg. ; Mq. nigrimana ? Mg. ; Mq. 

 thoracica ? Mg. ; Mq. Lutca, alts subfulvis, abdomine supra fusco late- 

 ribus apiceque luteo. Long. li~H ; alar. 3|-4 liii. 



Luteous. Eyes and antennas black. Wings slightly tawny. Ab- 

 domen brown above, luteous on eacli side and towards the tip. 

 Generally distributed. (E. S. I.) 



3. lacustris, Mg. zw. iv. 107. 3 (1824); Mq. -palustris? Mg. 

 Lutea, alls subfulvis, abdomine supra nigro-fusco. Long. li-l- ; alar. 

 3|-4 liu. 



Luteous. Eyes and antennae black. Wrings slightly tawny. Ab- 

 domen blackish-brown above. 



Generally distributed. (E. S. I.) 



4. punctum, Mg. zw. iv. 110. 9 (1824). Ferruginea, thorace nigro- 

 vittato, scutello apice albido, alis subfulvis, abdomine nigro-fusco apice 

 luteo. Long. Ij-li; alar. 3^-4 Hn. 



Ferruginous. Thorax with a black stripe; tip of the scutellum 

 u-hUish. Eyes and antennae black. Wings slightly tawny. Halteres 

 and logs tawny. Abdomen dark brown above. 



Generally distributed. (E. S. I.) 



5. tristis, Mg. zw. iv. 110. 10 (1824) ; Mq. Obscure ferruginea, 

 alis cinereis, abdomine supra fusco, pedibus pallidioribus. Long. 1-^ 1-i- ; 

 alar. 3^-4 lin. 



Dark ferruginous. Eyes and antennae black. Wings grey. Hal- 

 teres tawny. Abdomen brown above. Legs pale ferruginous. 

 Not rare. (E.) 



FAMILY XXIII. PL AT YPEZIDJB. 



Dolichopodes p., LI. Platypezince, Fin. ; Mg. ; Mq. Dolichopida 

 p., Lch. 



Proboscis brevis, maxillis nullis. Antennas articulo tertio compresso, arista 



