AUSTllO-MALAYAN DIPTERA 455 



(in some specimens this character is not perceptible) ; some erect 

 yellowish hairs on the first segment. Halteres with a black 

 knob. Front coxae and proximal half of the femora yellowish- 

 red ; the remainder of the front femora, the tibiae and the base 

 of the first tarsal joint, black; the rest of the front tarsi white. 

 Middle and hind legs yellowish-red ; femora with two, more or 

 less distin 3t , brown rings , sometimes with an indication of a 

 third one before the tip ; base of hind femora yellowish ; tarsi 

 yellowish, the tips of the joints brown ; the hind tarsi some- 

 times whitish. Wings with a yellowish tinge ; a brown (not 

 very dark) crossband immediately beyond the anterior crossvein ; 

 it is curved, the concavity being turned towards the apex ; apex 

 brown as far as the end of the second vein. First posterior cell 

 coarctate, and (in most specimens) distinctly open. 



NB. The five specimens from Ternate have the frontal velvet- 

 black spot larger ; the fan-like fringe of hairs on the pleurae, 

 above the middle coxae is black, while in the specimens Irom Ce- 

 h3bes and N. Guinea they show, when looked at from the same 

 point of view, a golden reflection. 



This is alhimana Dolesch. (type in Vienna) and not albimana 

 Macq. ; the latter must be closely allied , but is represented as 

 having the anal cell much drawn out (Compare Macq. D. E. , 

 II, 3, Tab. 33, f. 3). It seems to be the most common species 

 in those regions and will probably be identified with some spe- 

 cies described elsewhere. Cai. albitarsis Wied., stylophora Schin., 

 maeropus Thoms., hreoicellula Macq., all belong in the vicinity. 



Calobata prudens n. sp. 0^9. 



Of the same size as albimana, which it resembles exceedingly. 

 The differences principally consist in the color of the tip of 

 middle and hind femora , which is dark brown or black here. 

 The proximal third of the corresponding tibiae is also of a dark 

 color ; their tips are also brown. The third joint of the antennae is 

 brown , instead of ferruginous. The crossband of the wings is 

 straight , or nearly so , on the distal side (and not concave , as 

 in C. albimana). The coloring of the body seems to be metallic 



