162 
MR. WALKER ON DIPTERA COLLECTED AT MAKES3AE, 
much longer than the thorax, hind borders of the segments white ; 
legs tawny, very long ; posterior coxae and fore tibiae black ; posterior 
femora with three black bands ; fore femora black, tawny towards 
the base ; posterior tibiae and posterior tarsi dark tawny ; fore tarsi 
white, black at the base ; wings grey, with two brown bands, the second 
apical ; veins black ; cubital vein and praebrachial vein converging to 
the tip of the wing ; discal transverse vein straight, upright, parted by 
much less than its length from the border, and by more than thrice 
its length from the praebrachial transverse. Var. : Bands of the 
wings broader and more complete. Length of the body 4-5 lines ; of 
the wings 7-8 lines. 
This species is erroneously recorded as C. indica in Vol. III. p. 124. 
207. Calobata bifasciata, n. s. Fcewi. Nigra, longissima, gracil- 
lima, capite litura transversa albida, arista breviuscula basi robusta, 
abdominis dimidio antico subclavato fasciis duabus cinereis, dimidio 
postico lanceolato, femoribus posticis basi albidis apice rufescentibus, 
tarsis anticis albis apice nigris, alis cinereis nigricante bifasciatis. 
Female. Black, very long and slender ; head with a whitish transverse 
mark in front of the face, which is very short ; 3rd joint of the an- 
tenna; elongate-conical, more than twice the length of the 2nd ; arista 
rather short, stout towards the base ; thorax attenuated in front ; ab- 
domen more than twice the length of the thorax, broadest in the mid- 
dle, subclavate to half its length, lanceolate from thence to the tip, 
tw o cinereous bands on the basal half ; legs long ; hind femora whitish 
at the base, reddish at the tips ; fore tarsi white, with black tips ; 
wings grey, slightly blackish at the tips, and with two blackish bands, 
the second broader and more complete than the first ; veins black ; cubi- 
tal vein and praebrachial vein slightly converging towards the tip of the 
w ing ; discal transverse vein straight, oblique, parted by less than its 
length from the border, and by more than thrice its length from the 
praebrachial transverse. Length of the body 5 lines ; of the wings 
8 lines. 
Gen. Cardiacephala, Macq. 
208. Cardiacephala varipes, n. s. Mas. Testacea, graeillima, ca- 
pite subelongato, antennis pallide rufis basi nigris, thorace antico 
attenuato, abdomine lineari apicem versus tumido, femoribus inter- 
mediis subincrassatis, libiis intermediis nigris, tarsis intermediis albis 
apice nigris, alis pallide fnsceseentibus, basi fasciaque cinerascentibus. 
Male. Testaceous, very slender; head somewhat elongated; antenna; 
pale red, black at the base ; thorax long, attenuated in front ; abdo- 
men linear, tumid towards the tip, narrower and much longer than the 
thorax ; legs very long ; fore legs much shorter and more slender than 
the others ; middle femora slightly incrassated, except towards the 
tips ; middle tibiae black ; middle tarsi white, with black tips ; wings 
