Abdomen very much longer than the head and thorax together. 

 Dorsum in a well-marked specimen brownish black, very slightly dusted 

 with greyish, with a moderately broad dorsal line which is almost 

 always inconspicuous on the last segment, with the narrow but con- 

 spicuous similar coloured posterior and lateral borders on each segment 

 but on the last segment generally finer and sometimes inconspicuous; 

 and with a pair of less conspicuous moderately large rounded greyish 

 yellow spots on each segment after the two basal ones in the middle 

 of the brownish black space, but these markings always wanted on the 

 seventh segment ; in other specimens the grey roundish spots almost 

 always disappear but sometimes very obscurely occur, only on the 

 fourth and fifth segments ; the sides somewhat densely covered with a 

 greyish tomentum ; pubescence short depressed and mostly black, but 

 more or less greyish yellow on the greyish parts, and longer and less 

 depressed down the side-margins. Ventre darker, yellowish ashy grey 

 or whitish grey with a broad slightly darker basal segments, and with 

 a very narrow yellowish hind margins ; pubescence sloping, not dense, 

 and pale except for some erect black hairs under the seventh segment 

 and to a small extent (though less erect) on the sixth segment. 



Length: 9-1 1.5 mm. 



Male. Head much broader than the thorax, shorter than the 



one-third of its width. Face in profile rounded anteriorly and moder- 

 ately and almost equally produced from the eyes, pale yellowish grey 

 but with the broad side-cheeks thickly speckled all over with small 

 black spots which crowd 1 together so much on the upper part that 

 they coalesce and form an irregular black patch near the antennae ; 

 and which become fewer and smaller towards the inner margin of the 

 cheeks, the middle part of the face without any black spots ; pubescence 

 on the side-cheeks conspicuous, long but only moderately dense, erect 

 and black, on the middle part of the face and above the mouth the 

 pubescence is less conspicuous and is all whitish yellow ; jowls fairly 

 broad, whitish grey and with no black spots except the tiny dots 



