262 Mr. F. Smith's Monograph of the 



fuscous and with coppery iridescence, which in certain 

 hghts has purple tints. 

 Hah. — Algeria. 



23. Xylocopa femorata. 



Xylocopa grisescens, Smith, Cat. Hyra. Ins., Apidse, ii. 

 347, S (nee St. Farg. Hym. ii. 

 178). 



I had overlooked the species described by St. Fargeau 

 when I gave the name grisescens to this insect ; it is black 

 and covered with griseous pubescence, that on the tarsi 

 being pale fulvous ; the posterior femora are much dilated ; 

 the wings fusco-hyaline, with a darker cloud beyond the 

 inclosed cells ; it is nine lines long. This is very probably 

 the male of A", cirtana. 



Hah. — Algeria. 



24. Xylocopa prausta. 



Xylocopa prceusta. Smith, Cat. Hym. Ins., Apid«, 

 pt. ii. 347, ^. 



This species was marked female in my catalogue by an 

 oversight ; it is distinguished by ha\4ng the head, thorax, 

 legs and base of the abdomen densely clothed with short 

 ochraceous pubescence, which has a golden lustre ; the 

 intermediate and posterior tarsi, as well as the apex of the 

 abdomen, are clothed Avith bright fulvous ; the scape in 

 front and the clypeus yellow. Length ten lines. 



Hah. — Africa. 



25. Xylocopa ohscurata. 



Xylocopa ohscurata. Smith, Cat. Hym. Ins., ApidfE, ii. 

 347, $. 



This male is very distinct from all others which are 

 known to me ; it is nine lines long ; its head and thorax 

 are densely clothed with short fulvo-ferruginous pubes- 

 cence, not bright, rather obscure ; the same also covers 

 the basal segment of the abdomen ; on the other segments 

 it IS black, except that on the two apical ones, which is 

 bright fulvous ; the wings fuscous, with a slight purple 

 iridescence. 



Hah. — Africa. 



