THE .EDOMINA SUB-FAMILY 487 



circular depression surrounded with line hairs ; metathorax similar to 

 mesothorax, also with the two circular depressions. Tracheal angle 

 situated between pro- and mesothorax, very slight dilation. 



" Abdomen. — First and second segments slightly shorter than re- 

 mainder, with compound bristles as on thorax ; third to ninth each 

 with a lateral tuft of hairs (short) arranged m a circle ; eighth segment, 

 respiratory siphon, almost as long as three segments, with ten short 

 spines on under side near base, a compound hair at the middle, on upper 

 side several compound hairs, slightly chitinous ; ninth segment, swun- 

 merets* very short, half length of segment, three sets (?) plain compound 

 bristles, very long ; tracheae appear to touch, in the centre of each 

 segment a chain pattern." 



Table of Species of the Genus Uranotania. 

 A. With one or more of the distal hind tarsal joints entirely pale, 

 iii. Abdominal segments basally pale banded. 



1. UraiiotcBuia minima, Theob. Last hind tarsals all yellow with 



more or less complete apical banding of other joints. Ab- 

 dominal pale bands yellowish-brown. Thoracic adornment 

 unknown. Anterior fork-cell quite as long as the posterior. 



iv. Abdominal segments with apical pale bands or median spots. 



2. U. annulata, Theob. Last two hind tarsals all white, remaining 



joints with apical pale bands ; fore and mid legs unhanded. 

 Pale abdominal bands grey. Thorax chestnut-brown, sharply 

 separated from grey pleurae ; apparently without blue adorn- 

 ment. Anterior fork- cell much shorter than the posterior. 



3. TJ. geometrica, Lutz. Hind legs with last two tarsals all white 



and apical pale bands to other joints, fore and mid tarsi 

 indistinctly banded. Abdommal segments black, with trian- 

 gular white median patches. Thorax reddish-brown, with 

 blue spots in front of the wings, at back of mesonotum, 

 and on middle of scutellum. 



v. Abdommal segments basally and apically pale banded. 



4. U. x^idclierrima, Arribill. The proportion in which the con- 



tiguous segments contribute to the pale yellow abdominal 

 bands is very irregular. Last hind tarsal joint white, with 

 apical or articular banding to most other tarsals. Thorax 

 clear red-brown, with brilliant blue median line on anterior 

 half of mesonotum, and patches of the same at the roots of 

 the wings. 



vi. Abdominal segments unhanded, but with pale lateral spots. 



5. U. argyropoda, Walker. Hind legs with last two tarsal joints, 



and apex of next, white ; fore legs with a broad whitish band, 

 formed of all the fourth with the apex of third and base of 



* Swimmerets=aaal tubercles? — G. M. G. 



