April, 1894. 1 73 



spots, on which the hairs are seated, and having the hinder margins of the segments 

 darker ; it has both discal and marginal setos. Wings with the base of the third 

 longitudinal vein armed with setee as far as the little cross vein. Legs setose, yellow, 

 with the upper surfaces of the fore and hind femora grey. 



A specimen of this unrecorded British species was captured at Felden by Mr. 

 Piffard, and sent to me for inspection by the Eev. E. N. Bloomfield. 



NE^RA, Dsv. and End. 



Oen. ch. — Head :* eyes nude ; fronto -orbital setae double at the back in both 

 sexes ; antennae with third joint between two and three times the length of the 

 second, somewhat dilated and compressed in the middle, with the upper surface 

 straight and apex pointed, and the under surface convex ; arista with both first and 

 second joints elongated, and with the third geniculated to the second ; facialia 

 ciliated about half way up ; wings unarmed, with the exception of two or three 

 setsB at base of the third longitudinal ; fourth vein bent in a curve, outer cross vein 

 placed rather nearer to the inner cross one than to the bend of the fourth ; first 

 posterior cell nearly or quite closed at the end ; abdomen with both discal and 

 marginal setae. 



N. ATEA, DsV.f 



Male, shining black and immaculate, except for a white spot on the shoulders, 

 which, in a certain light, extends partly across the transverse thoracic suture ; 

 frontal space narrow, about one-fourth of the width of the head ; antennae black, 

 arista with the third joint bent inwards and forwards in a considerable curve ; palpi 

 black ; thorax with three external dorso-central bristles behind the suture ; abdomen 

 black and glabrous, with the spurs of two white spots on the sides of the second and 

 third segments, they seem the vestiges of transverse bands ; alulets white, halteres 

 yellow ; legs black, with few spines. Length, about 2 mm. 



The only specimen I have seen of this rare little species was taken by Mr. 

 Beaumont at Boxhill, Surrey, in July, 1893. 



The fly described by E. Desvoidy was a female, in which he says that the 

 abdomen was quite black. 



(To he continuedj. 



A IfEW SPECIES OF ALEUBOBES. 

 BY J. W. DOUGLAS, F.E.S. 



Aleueodes SPIE^^. 

 Adult, $ ? . Head very broad, black. Antennae pale brown. Eyes large, 

 black, entirely divided by a broad yellow fillet. Eostrum black. Thorax black, the 

 hinder margin of the segments on the sternum pale yellow. Wings pure white : 

 fore- wings just at the place where the median nervure is deflected is a large, 

 transverse, fuscous-grey, widely furcate, spot, of which on the lower limb of the 

 furcation, within the limits of the discoloration, the nervure is deep black ; the 

 other limb extends at a similar angle upwards, but has neither nervure nor black 

 line. The lower wings are of exactly the same pattern. The femora are black, pale 

 at the base ; tibiae pale, blackish at base and apex ; tarsi with 1st joint yellow, 2nd 



* See fig. 90, Brauer and Berg., I. c. t " Diptferea des environs de Paris," t. i, p. 671. 



G 



