.4 Monograph of Egyplïan Diplcra. 113 



coarsely puiictate and consequently more shilling cçneous than the 

 thorax, with its lower margin covered with dirty white dust ; its 

 pubescence is longer than that of the thorax and consists of dark 

 grey or tawny hairs on the dise and longer, very charactcristic 

 tawny-yellow bristly hairs on the lower margin. 



Abdomen black, coarsely punctate, mostly duli and almost 

 entirely covered with grey and tawny-yellow dust^ which is much 

 thicker on the two pairs of lunules, (one pair on cacli 

 of the second and third segments), and on the apical 

 half of the fourth segment, as well as on the lower margin of 

 the third segment. The lunules on the .secontl and third segments 

 are fairly large and conspicuous with black punctaticms, the pair 

 of lunules on the second segment being narrower and thcir inncr 

 ends more remote f rom each other than those on the third segment ; 

 the fourth segment is covered with greyish-yellow dust, which is 

 coarsely punctate with black, except for the broad basai corners 

 which are free from dust, as well as a thin médian transverse 

 basai line which is continued in another thin vertical, médian line 

 downwards to about one-third the length of the segment ; in other 

 words, the fourth segment possess two broad lunules, the lower 

 margins of which are indistinct owing to the dust entirely covering 

 the lower part of the segment, although the dust on the lunules is 

 paler and brighter. Pubesoence on the abdomen is fairly dense 

 and short, mainly following the ground colour, but with a few 

 rusty-yellow hairs on the dise, except for a fringe of grey hairs 

 on the puffed ont basai corners of the second segment, which is 

 the broadest part of the abdomen. Hypopygium asymmetrical and 

 black. 



Legs black, with the knees of the two antei'ior pairs 

 l)i'oadly yellow, also the extrême base of the posterior tibise, the 

 ventral side of the very swollen hind metatarsi and ail the front 

 tarsi are yellow. The posterior femora are very swollen and bear 

 two rows of black spines on their lower distal ends ; the hind 

 tibias are also rallier swollen ; the hind metatarsi are about as 

 broad as the broadest part of the tibias, triangular, fiât below, 

 and ending above in a sheifp ridge. The middle tibias hâve 

 distinct spurs and the four basai joints of ail the front, middle 

 and hind tarsi are spurred ; thèse spurs are usually yellow on the 

 front legs and black on the middle and hind legs. The pubescence 

 on the front legs is fairly long and whitish but occurs only on the 

 upper surface and sides ; on the hind femora and tibiae the 

 pubescence is also whitish, but more erect, long-'sr and rather 

 tufted. The four basai joints of the hind tarsi bear on their lower 

 surface and sides very short but erect and tufted rusty-yellow 



