NEW AND LITLLE-KNOWN NEMATOCEROUS 

 DIPTERA FROM JAVA 



F. W. Edwards. 

 (British Museum, London). 



The material dealt with in this paper formed part of a small collection 

 of Javanese Nematocera which was sent to the British Museum for deter- 

 mination by Dr. H. Karny. The writer wishes to express his indebtedness 

 to Dr. Karny and to the Buitenzorg Museum for the privilege of examining 

 the collection, and of retaining the types of the new species for the British 

 Museum. 



Family Tipulidae* 

 Subfamily Tipulinae* 



Pselliophora rubella, sp. n. 



Head mostly yellow, a diffuse brown cloud on the vertex, not reaching the eye- 

 margins. First antennal segment black above, yellow beneath. Flagellum black, all but 

 the last few segments narrowly yellow at the tip. Palpi with the first two segments 

 yellowish (remainder missing). Thorax uniformly orange-yellow. Abdomen orange- 

 yellow, the apical margin of tergite 5 and the whole of tergites 6—8 blackish brown. 

 Hypopygium orange yellow, the tips of the ninth tergite and side-pieces, and the whole 

 claspers black. Ninth tergite with a deep but rather broad apical V-shaped eraargination, 

 the lobes black and densely covered with long black hair. Ninth sternite trilobedapic- 

 ally, the lateral lobes white, the median lobe orange, truncate apically and about as large 

 as one of the lateral lobes. Legs with the coxae and trochanters orange-yellow; femora 

 black, indistinctly lighter towards the base; tibiae black, each with a narrow white 

 ring close to the base; tarsi black. Hind femora not much thicker than the others, and 

 with short pubescence only. Wings clear, with a slight brownish tinge, most marked 

 at the base and in the costal cell, stigma small, dark brown, veins dark brown. No 

 fine hair-brush at base of wing. Haltères brownish, knobs lighter. 



Length of body, 12 mm., wing 10 mm. 



Buitenzorg, 15. iv. 1921 (Siebers). 



Type cf in the British Museum. 



This is doubtless the species which has been recorded from Buitenzorg 

 by Alexander (Proc U. S. Nat Mus. 49, p. 180, 1915) as P. rnbra,0.-S., 

 to which it is evidently closely allied. P, rubra however differs in the 

 entirely black hypopygium and in the structure of the ninth sternite, the 

 median apical portion of which has two short, divergent horns. 



