302 TIPULID^E. 



oblique transverse veinlet, which is opposite the base of the first and 

 second externo-medial veins. 



47. immaculata, Meig. Zw. i. 148. 58 (1818) ; Mcq. ; Zett. Ci- 

 nerea, palpis antennisque nigris, pectore cano, alis limpidis, pedibus 

 testaceis, femoribus tibiisque apice tarsisque nigris. Long. 3-4 ; alar. 

 6-8 lin. 



Cinereous. Palpi and antennas black. Pectus hoary. Wings limpid, 

 narrow; veins black, testaceous towards the base; stigma obsolete. 

 Halteres testaceous, with brownish knobs. Legs testaceous ; tarsi and 

 tips of the femora and of the tibias black. 



Common. (E. S. I.) 



d d. Cubital vein not forked. 



SECTION 21. 



Mediastinal vein ending at beyond three-fourths of the length of the 

 wing ; subcostal ending at beyond seven-eighths of the length, connected 

 by a veinlet very near its tip with the radial ; radial and cubital spring- 

 ing from a common petiole, which they exceed in length, and which 

 proceeds from the subcostal at somewhat beyond half the length of the 

 wing; cubital connected with the third externo-medial by a veinlet, 

 which is opposite the base of the radial, and whose middle emits the 

 first externo-medial ; the latter is forked at a little beyond half its 

 length ; second and third externo-medial springing close to the above 

 veinlet from a common petiole; third externo-medial connected by a 

 veinlet close to its base with the subanal. 



48. occulta, Meig. Zw. vi. 279. 79 (1830). Cinerea, thorace vit- 

 tis tribus fuscis, pectore cano, alis subfulvescentibus, maculis costalibus 

 et subapicalibus fasciaque abbreviata fuscis, halteribus pallidis apice 

 fuscis, abdomine ferrugineo vitta fusca, femoribus basi coxisque fulvis. 

 Long. 5 ; alar. 12 lin. 



Cinereous. Thorax with three dark brown stripes ; the middle one 

 subdivided, the lateral pair abbreviated. Pectus hoary. Wings slightly 

 tawny, with four brown spots along the costa, and one on the fork of 

 the first externo-medial vein ; the third costal spot forming a band. 

 Halteres pale, with brown knobs. Abdomen ferruginous, with a brown 

 stripe ; femora at the base and coxas tawny. 



Not common. (E.) 



SECTION 22. 



Mediastinal veinlet ending at beyond two-thirds of the length of the 

 wing, connected by a veinlet at its tip with the subcostal ; subcostal 

 ending at about five-sixths of the length ; radial and cubital springing 

 from a common petiole, which is about one-fourth of their length, and 

 which proceeds from the subcostal at much beyond half the length of 

 the wing ; radial forked at one-fourth of its length ; cubital connected 



