6 Dr. C. P. Alexander on African Crane-flies 



valves slender but weal?, the tergal valves gently upcurved, 

 the sternal valves blackened beneath at the base. 



Hab. Rhodesia, Uganda. 



Holotype, ? , Mt. Chirinda, Melsetter District, Southern 

 Rhodesia, altitude 3500 feet, June 11, 1911 (C. F. M. 

 Swynnerton), collector's no. d>625. 



Allotype, S , Mt. Koka-ijero, S.W. of Elgon, Uganda, 

 altitude 6400 feet, August"... 1911 (S. A. Neave). B.M. 

 no. 1913. 140. 



Paratopohjpe, ? . 



Presented by the Entomological Research Committee, 

 1912. 145. 



Type in the collection of the British Museum (Natural 

 History) . 



Limnobia rhanteria, sp. n. 



Head dark grey with a median brown line ; antennae dark 

 brownish black, the tips of the individual segments paler ; 

 mesonotal praescutum pale brown with four indistinct, darker 

 brown stripes ; thoracic pleura with a broad dark stripe, with 

 a silvery stripe ventrad of it; femora with the tips yellow, 

 with a subapical brown ring in this yellow portion ; wings 

 pale yellow, dotted and sprinkled with pale brown in all the 

 cells ; stigma with yellow centre ; abdominal tergites browu, 

 the sternites brownish yellow. 



Male. — Length about 5*5-6 mm. ; wing 9*5-10*4 mm. 



Rostrum and palpi dark brown. Antennae dark brownish 

 black, the flagellar segments indistinctly tipped with paler; 

 the elongate first scapal segment is dusted with grey ; 

 flagellar segments oval, narrowed at the ends. Head dark 

 grey with a median black stripe. 



Pronotum pale brown, rather prominent. Mesonotal 

 praescutum pale brown with four indistinct darker brown 

 stripes, the median pair divided by a very indistinct, capillary 

 median line ; scutal lobes dark brown, the remainder of the 

 scutum pale brownish yellow ; scutellum pale brown, a little 

 darker laterally, continued caudad from the dark scutal 

 lobes • postnotum dark brown. Pleura pale brown with a 

 darker chestnut-brown stripe extending from the fore coxae 

 to the base of the halteres, the mesosternum likewise dark 

 brown, the space between these dark marks silvery pruinose. 

 Halteres long and slender, dark brown, the base of the stem 

 abruptly light yellow. Legs long and slender with the coxae 

 and trochanters reddish yellow ; femora with the basal 

 quarter pale, thence passing into dark brown, the tip broadly 



