igio.] E. Brunetti : Blood-sucking Miiscidce. 85 



the number of bristles on one side of the face is different to that on 

 the other side, in fact this occurrence is not uncommon. 



Thorax. Variable, within certain limits. Dorsum rather 

 dark acuous grey, with a more or less distinct but nearly always 

 obvious, broad light grey stripe beginning in the middle of the 

 anterior border and fading away at or before the transverse suture. 

 Humeral calli light grey ; the transverse suture, and more or less 

 of the scutellar dorsum, also. In other examples, the dorsum is 

 best described as being yellowish grey, with two broad, well-separa- 

 ted, well-defined stripes from the anterior border nearly to the 

 scutellum ; with sometimes an additional narrow intermediate stripe 

 behind the suture. 



The sides of the thorax are lighter, ash-grey or yellowish grey. 

 Metanotum dark blackish grey, practically bare. 



ChcEtotaxy. The principal bristles are nearly always uniform 

 in perfect specimens, but are very easily broken oflf. Thej- are 

 often smaller than their normal size, and in that case sometimes are 

 not conspicuously larger than the small bristly hairs with which the 

 thorax is covered. All the bristles are brownish yellow and generally 

 reclinate. Humeral bristles 2 ; post-humeral i ; praesutural r ; 

 notopleural 2 ; supra-alar i ; intra-alar i ; post-alar i. A pair 

 of inner dorso-central bristles, and a row on each side of compara- 

 tively small but distinct dorso-central bristles, the hindermost 

 being as usual the largest ; whilst outside this row is a second row of 

 microscopic ones which only extends from the transverse suture to 

 the posterior border. The normal row of dorso-central bristles is 

 continued to the anterior border. Along the median line of the 

 thoracic dorsum are numerous microscopic bristly hairs, of which 

 those in front of the suture are arranged more or less in four rows, 

 while those behind it are more irregularly placed. 



On the scutellum there are two basal bristles, placed near the 

 edge, a post-median row of four, of which the inner ones are less 

 strong ; and two strong long apical ones. Over the whole of the 

 thoracic dorsum and the scutellum are microscopic bristly hairs, 

 which are more or less irregularly placed. 



On each side of the thorax there is a row of 6 (occasionally 7, 

 or even 8) on the hinder side of the mesopleura, and 3 very distinct 

 sternopleural ones, placed i : 2. Smaller bristly hairs occur irregu- 

 larly, l)eing much more numerous in some specimens than in others. 



Abdomen. Rather dark gre3^(in some examples much lighter) ; 

 with short, l^rownish yellow hairs, curved backwards ; and a row 

 of long bristly curved hairs towards the j)osterior border of each 

 segment. Belly dark grey, sometimes reddish (i)robably in the 

 case of specimens captured soon after ha\-ing sucked blood) ; the 

 dorsal bristly hairs continued ox-er the sides to a cousideralik' 

 extent. 



Genital organs in the <f apparently consisting of a telescopic 

 arrangement of three pieces, brown, with l)lackish marks and some 

 hairs ; the tip hairy. Ovipositor in the- 9 eonicalh' elongated, 

 concolorous, ])rotruded. ])ubescent. 



