^^^ HYMENOPTERA. 



Apis leiicothorax, De Geer, Mem. iii. 573. 4. t 28 f 7 



Bombus sestuans, Fabr. Syst. Piez. p. 351. 44." 



Xylocopa aestuans, St. Farg. Hym. ii. 193 36 * 



Xylocopa pubescens. Spin. {Klug, MSS.) Ann. Soc. Ent. Fr vii 



518. Q4, and var. a, b, c, d (1838). 

 Hob. India. 



49. Xylocopa Olivieri. g ^ 

 Xylocopa Olivieri, St. Farg. Hym. ii. 192. 34. 



Hab. India; Bagdad. 



50. Xylocopa orichalcea. 



Xylocopa orichalcea, St. Farg. Hym. ii. 181. 10. 

 Hah. Bengal; China. 



51. Xylocopa nigro-cincta. 



Female. Length 10 lines.-Head and thorax black • an 

 elevated carma between the antenna, the margin raised round 

 the base of the clypeus, not continued to its anterior margin 

 the labrum has three elevated tubercles. Thorax • the disk 



Td'enfe' tT^Ck T ^^^^^^^P-^tured, the'sideshavtg 

 a dense, shoit, black pubescence ; the wings dark fusco-ferruei- 

 nous havmg a splendid violet iridescence, the legs have a dense 

 black pubescence. Abdomen ferruginous the apical margins ^^ 

 the segments have a black fascia, the fifth segment ob^cuS the 

 sixth black, the sides of the abdomen ciliated with a dense black 

 pubescence; the entire abdomen closely punctured • beneath k 

 an elevated sharp longitudinal carina down the cent/e. 

 Hab. South America. (Coll. J. S. Baly, Esq.) 



52. Xylocopa flavo-nigrescens. g M 



Male. Length 11 lines.-Black, the pubescence is short and 

 dense, on head and thorax fulvo-ochracious, at the marg n of 

 the basal segment of the abdomen it is brigh yellow, grXaUv 

 becoming more obscure towards the apel, where t is deen 

 black, he apex and sides being fringed with long pubescence Jf 

 that colour; the basal margin of the second and three following 



SS mThe' "dT '"^ '' '"-^^^ y^'"'^ pubescence, subb^ 

 termpted m the middle, and not reaching the sides. The scane 

 of the antenna m front, and the flagellum, exce^r he two basal 



inSeCce^irirh^^^^^^^ 



umescence the legs have a black pubescence; the anterior and 



intermediate tarsi have a long fringe' of black pubescerceTn front 



