Cutiterebra <ntd its A//irs in the British Afuseum. 379 



aliJomen heloiv ; abdomen metallic ijreenish black, shininq, 

 dull reddish brown on sides of segments below ; icings dark 

 brown J lighter at the base in front ; alube btuckish brown. 



Front (lull, with a deep depression in tlie median line, 

 j)Ossib!y due to immaturity ; ocellar triangle large, shining 

 black ; tlie depressed area of front reddisli brown, doubtless 

 originally pollinose ; an impressed pollinose mark running 

 from the eye on each side to the fissura frontalis opposite the 

 base of the antenna?; below this, and sc])aratcil ivom it by a 

 subquadrate shining black spot, a large dull reddish-brown 

 area, extending from the eye to the fissura frontalis and also 

 running upwards so as to join the extremity of the former 

 mark; this area would doubtless likewise be pollinose in a 

 well-])reserved specimen ; a round subconical shining black 

 tubercle on each cheek below the eye; entire head thinly 

 clothed with short black ])ile. Antenna;: first two joints 

 black, with black pile ; third joint short, about as long as the 

 first two joints taken together, reddish brown, apparently 

 pollinose; arista black, thick at the base. Antennary pit 

 broad, septum not developed. Thorax and scutellmii dull 

 dark brown above ; the beginnings of two narrow shimmering 

 silvery stripes in front of the dorsum, not reaching to the 

 suture, which is very deep ; a dull dark brown broader stripe 

 outside these and reaching to the suture, and a similar median 

 one scarcely reaching the suture, faintly indicated ; thorax 

 and scutellum entirely clothed with short black pile, whicii is 

 sparse above, but thicker and longer on the pleura? and along 

 a line bordering the dorsum. Abdomen also thinly clothed 

 with short black pile and punctuate ; fifth segment more 

 thickly clothed with hair and showing no blue above ; appa- 

 rently it was originally more or less covered with greyish 

 pollen ; the reddisli area on the sides of the segments below 

 was doubtless also covered with ])ollen ; there are indications 

 that the margins of the second, third, and fourth segments were 

 narrowly white. Legs black and clothed with black pile ; 

 tibiaj with a very prominent fringe of bristly hairs on the 

 outside, making them look very broad ; there is a faint indi- 

 cation that they were originally pollinose at the base ; all the 

 tarsi extremely broad, the second joint of the scconti pair 

 measuring 1^ millim. in breadth, the posterior pair even 

 broader. 



"J'rinidad {//art) ; one specimen. 



Pvpa-case: length oO millim. ; breadth across the ridge on 

 the sixth segment 17^ millim. ; the transverse ridges very 

 strongly developed ; entirely clothed with imbricated scales, 

 of which those on the anterior portion of the segments, on the 

 dorsal surface at any rate, are denticulate. 



