378 APPENDIX, 



from the black vertex and includes the superior portion of 

 the tubercle of the antennae; tnouth each side black; an- 

 tennas blackish-piceous, basal joint and seta paler; second 

 joint decidedly longer than the first ; eyes with two yellow 

 bands of which the anterior one is irregular; occiput black, 

 with a cinereous orbital line ; thorax with four yellow spots 

 on the anterior margin ; an obsolete, yellowish, curved line 

 above the wings terminating anteriorly in a transverse, 

 whitish spot on each side of the centre ; an angulated yel- 

 low line behind ; pleurae with two yellow spots placed v^x- 

 tically; wi^^e/ edged with yellow; 2m7?,§-5 hyaline; a fus- 

 cous, costal margin, ferruginous at base and gradually di- 

 lated towards the tip ; poisers white ; feet white ; anterior 

 pair with the anterior half of the thighs and tibiae and all 

 their tarsi black; intermediate pair with the tip of the 

 thighs, of the tibiae, and all the tarsi pale rufous; posterior 

 pair hairy beneath, with a tooth near the tip and posterior 

 half black ; tarsi and tip of the tibiae pale rufous, the latter 

 arcuated ; tergum with a band near the base, somewhat 

 narrowest in its middle ; another narrower one on the mid- 

 dle and two near the tip a little broader in their middles, 

 yellow ; venter with about three distant, narrow, yellow 

 bands, of which the middle one is sometimes fulvous. 



Length less than three-fifths of an inch. 



This insect does not altogether agree with the charac- 

 ters of the genus in which I have placed it, inasmuch as 

 the hind thighs are toothed, the hind tibiae arcuated, and 

 the terminal joint of the antennae is oval and not elongated. 

 It disagrees with Milesia in the elongated first and second 

 joints of the antennae, and with Pipiza in the length of the 

 palpi, and but for the character of the antennae, I should 

 certainly refer it to the genus Milesia. 



