Ciititerebra and its A/lies in the British Museum. 379 



abdomen helow ; abdomen metallic cjreeyiisli black, shining, 

 dull reddish brown on sides of segments below ; wings dark 

 hroxon, lighter at the base in front ; alulce blackish brown. 



Front dull, with a deep depression in the median line, 

 possibly due to immaturity ; ocellar triangle large, shining- 

 black ; the depressed area of front reddish brown, doubtless 

 originally pollinose ; an impi'essed pollinose mark running 

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

 base of the antennae ; below this, and separated from it by a 

 subquadrate shining black spot, a large dull reddish-brown 

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

 ruiming upwards so as to join the extremity of the former 

 mark ; this area would doubtless likewise be pollinose in a 

 well-preserved specimen ; a round subconical shining black 

 tubercle on each check below the eye; entire head thinly 

 clothed with short black pile. Antennoi : first two joints 

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

 first two joints taken together, I'eddish brown, apparently 

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

 broad, septum not developed. Thorax and scutellum 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, which is 

 sparse above, but thicker and longer on the pleurae 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 reddish area on the sides of the segments below 

 was doubtless also covered with pollen ; there are indications 

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

 narrowly white. Legs black and clothed with black pile ; 

 tibiae 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 second pair 

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

 broader. 



']'rinidad [Hart) ; one specimen. 



PujKi-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. 



