1892. j 179 



talia, which are very wide, swollen, wliite, Avith grey reflections, and armed with 

 fronto-orbital bristles in a triple row ; cheeks large, glistening white, and bare ; 

 antennfe very long, with the first and second joints rufous, and the third grey, and 

 nearly eight times as long as the second ; arista thickened nearly to the end ; palpi 

 yellow ; facialia ciliated for two-thirds of the way up ; thorax greyish- white, marked 

 with four stripes (the outer pair being maculiform), and with numerous little black 

 spots, upon which the bristles are seated ; post-sutural outer dorso-central setae three 

 in number; scutellum grey, with the apex mostly rufous ; abdomen white, tessel- 

 lated with numerous black spots and patches ; and having setse both on the disc 

 and edges of the segments ; wings with the apical cross veins curved, and having 

 the first posterior cell closed at the apex, or, sometimes, slightly open ; legs grey. 

 I have adopted the Fabrician name, as it has the priority, and is very characteristic. 

 Not uncommon ; I have several specimens bred from Arctia Caja. 



35a.— DESVOIDIA, g. n. 



Gen. cli. — Eyes nude and small ; forehead projecting, facial angle 

 very oblique ; frontalia wide, occupying nearly half the head in the 

 female ; cheeks and chin large, former bare ; fronto-orbital bristles 

 extending to root of arista ; antennae long, with second joint short, 

 and third fully six times as long as second ; arista short, bare, and 

 thickened nearly to the end ; abdomen with both discal and marginal 

 setsB ; wings with fourth vein bent at an angle, and without appendix ; 

 first posterior cell ending some way before the apex, and outer trans- 

 verse vein in the centre between the inner cross vein and the angle of 

 the fourth. 



This genus is closely allied to JJetopia, but has the following dis- 

 tinctions : the facial setae only extend half way up the face ; the 

 abdomen has discal setae ; the wings are without cubital appendices, 

 and the outer cross vein is placed centrally between the inner vein 

 and the angle of the fourth. 



D. ruscA, sp. n. 



Metopia biserialis, Mcq. ?. 



Frontal stripe bi'oad, wider tlian sides, piceous in front but pale behind ; sides 

 dull grey ; fronto-orbital bristles numerous, in a double and partly treble row; face 

 yellowish-white, with dark reflections ; third joint of the antennae stout ; arista 

 shorter than the antennse, thickened and slightly increasing in thickness nearly to 

 the end, where it narrows suddenly, and terminates in a short fine point ; palpi 

 black ; thorax covered with yellowish-brown tomentum, and marked with four rather 

 indistinct stripes ; there are three outer dorso-central bristles behind the transverse 

 suture, and two in front of it ; scutellum brownish-grey ; alulets large, white, and 

 with a yellow border ; wings a little nebulous, having the fourth vein bent at an 

 angle, the apical cross vein a little curved, and the outer cross vein straight and 

 oblique ; abdomen brownish-black and shining, with a cinereous band round the 



