70 RICHARD S. BAGNALL. 



arrangement of specialised setae on tergite 9 (fig. 3 d) and the striking antennal 

 antigeny, the fifth segment in the <J being distinctly smaller and the sixth consider- 

 ably larger than in the $. 



I amend and augment the original descriptions as follows : — 



$. Antennal segments 3, 4 and 5 narrowly yellowish basally, in addition to the 

 distal constricted parts of 3 and 4 being colourless or faintly yellowish. 



Posterior margin of pronotum with the median pair of bristles rather widely 

 separated and having a pair of minor setae within. 



Abdomen with fringe on posterior margin of tergite 8 vestigial, altogether absent 

 medianly, and only very short and sparse for a short area at each side. Segment 8 

 with a widely spaced pair of dorsal bristles. Apical bristles shorter than the length 

 of segments 9 and 10 together. 



Measurements approximately : — 



Head, length 0'145 mm., width 0'175 mm. ; interocellar bristles, length 0085 mm. ; 



pronotum, length 0155 mm., width 0'24 mm. ; pterothorax, length 037 mm., 



width - 41 mm. ; fore-wing, length 0'95 mm., width near middle, 0'068 mm., at 



base 0'1 mm. ; abdomen, width at segment 5, 0*425 mm., length of tergite 5, 0'095 mm. 



Antennal segments . . hi iv v vi vii viii 



length (ju) 71 70 46 67 11 16 



width (ju) 28 26 20 20 8 5 



(J. The irregular pale areas of sternites 3 to 7 more minute than in either fun- 

 tumiae or marshalli, conforming more or less to 3 irregular transverse rows. Colour 

 of antennae as in $, but with joint 5 relatively short and 6 abnormally long. 

 Antennal segments . . iii iv v vi vii viii 



length (ft) 64 63 35 90 8 13 



