ATsTHOMYIA. 119 



b b b. Arista pubescent. Species 45. 

 a a. Alulae rather small ; lower valve extending a little beyond the 

 upper. 



b. Arista plumose with long hairs. 

 c. Legs black. Species 46-48. 

 c c. Legs black; tibiae tawny. Species 49-51. 

 b b. Arista pubescent or bare. 

 c. Legs black, 



d. Thorax and abdomen spotted. Species 52. 

 d d. Thorax and abdomen not spotted. Species 53-57. 

 c c. Legs pale. Species 58, 59. 

 a a a. Alulae small; lower valve not extending beyond the upper. 

 b. Arista plumose with long hairs. Species 60-64. 

 b b. Arista plumose with short hairs. Species 65. 

 c. Legs black. 



d. Body bluish-black. Species 66. 

 d d. Body black. 



e. Thorax not striped. Species 67, 68. 

 e e. Thorax striped. Species 69-73. 

 c c. Legs black ; tibite ferruginous. Species 74. 

 c c c. Femora and tibise piceous. Species 75. 

 c c c c. Femora, tibia;, and abdomen pale. Species 76-80. 



1. lardaria, F. S. L ii. 436. 5 (1781); Gmel.; Fal. ; Meig.; Mcq.; 

 Zett. — liar. ! I. pi. 36. f. 52. Albido-tomentosa, capite aurato, thorace 

 nigro-quadrivitfaio, alis subhyalinis, vena dlscali transversa valde obliqua. 

 Long. 4-5 ; alar. 8-10 lin. 



Black, with whitish tomentum. Head gilded above and in front; inter- 

 frontalia distinct, triangular ; frontalia of the male black, of the female 

 ferruginous ; facialia setigcrous along nearly the whole length ; mcdi- 

 ana pale ferruginous ; lateralia large. Eijes hairy. Thorax with four 

 black stripes. Wings subhyaline. Cubital and prnebrachial veins di- 

 verging from the pra^brachial transverse vein to the border. Discal 

 transverse vein undidating, very ohUqiie, parted by a little more than its 

 length from the prabrachial transverse vein, and by less than half its 

 length from the border. Alulse whitish. Abdomen subovate, tessellated, 

 a little broader but not longer than the thorax. 



Generally distributed. (E. S. I.) 



2. albolineata, Fal. Msc. 54. 38 (1810); Meig.; Mcq. ; Zett. 

 Albido-tomentosa, capite albo, thorace nigro-bivittato, alis hyaliuis, ab- 

 domine tessellato. Long. 2 |-3i ; alar. 5-7 lin. 



Black, 7oith ivhitish tomentum. Head white ; facialia setigcrous along 

 most of the length. Eyes hairy. Thorax with trco broad black stripes. 

 Wings hyaline ; cubital and ]n'a;brachial veins slightly diverging from 

 the prrebrachial transverse vein to the border ; discal transverse vein 

 oblique, very slightly curved, parted by a little less than its length from 



