'262 ];oM]5YMiD.r. 



liirva^ preying upon the lavvee, and perhaps pupae also, of small 

 bees (Aiulrena, IlaUctus, etc.).* The larva and pupa of Bomhylius 

 major, L., has been obtained from the nests of Androui. The 

 pupa of Bomhylius has cephalic spines which act as digging 

 organs. 



Table of Species. 



1. Wings witli narrow black band at base 



and a brown suffVision across middle : 

 abdomen with bright red pubescence, 

 and white pubescence at tip; length 



10-13 mm oricnfalis, Macq., p. 263. 



Wings without suffusion across middle ; 

 abdomen never as above 2. 



2. Wings whoU}' dark brown except hind 



border, where tlie colour fades away ; 



abdomen in cj" with silvery-white, in 



2 with iiery-red pubescence ; length 



4-0 mm wiilpii, Bruu., p. 264. 



Wings clear, with dark brown band on 



fore border, irregular in width, reaching 



nearly to tip on costa and posteriorly 



nearly to middle of wing; length 



8-12 mm major, L., p. 265. 



Wings clear, or at most brownish or 



brownish yelloAV at base, the colour 



never extending more than half across 



wing (in pr(>pinqu7ts only) .'!. 



•'). A conspicuous row of erect black spines on 



hind border of abdominal segments ; 



length 8-12 mm erecfus, Brun., p, 267. 



Abdomen without such spines ; length at 



most 6 mm 4. 



4. Legs black ; head with silvery-white 



hair-spots f 5. 



Legs pale yellow 6. 



~). Third antenna! joint tAvice as long as 1st 



and 2nd together ; extreme base of 



wing dark brown ; subcostal cell pale 



yellowish macuhdas, F., p. 207. 



Third antennal joint subequal to 1st and 



2nd together ; wing practically clear, 



only extreme base and the subcostal 



cell very pale yolloAvish coinasfcs, Brun., p. 268, 



6. First antennal joint pale yellow ; 3rd joint 



nearl;,' double 1st and 2nd together; 



anterior cross-vein at one-third of 



discal cell ; 1st basal cell very little 



longer than 2nd ; only 1st basal cell and 



subcostal cell very slightly brownish. . ricint/s, Brun., p. 270. 

 Antennae all black 7. 



* See Verrall ('Britisli Flies,' y. p. 502) for interesting notes on tlie habits 

 of i?. canesceii!<,i\ Europe;ni species. 



t Ji. a/ho>'parsiis, IJig., eoines here, but I cannot define it more narrowly. 



