lO i* fiH-Vf; If rt (c II '4^ K' ic m -t- i iUi % 



In an cx.implc of ihc Japar.csc btc it is 0.0636 _:^r" in weiLjht, in an<.thcr 

 one 0.07835 .i^r,"' \','hilc a bcc of the Italian race we.'i^li.s 0.0725 gr"'' and another 

 one of tile latter 0.0S75 <^i\'> 



The (|iieen of the Japanese bee i.s relatively larL^e; it is on the dry specimens 

 l3-'7 niiii in leiiv.tli ; (!nj-inL;' spa\vniiiL( season, lixin;^ queen rjro\\'s a.s large as 

 20 nini in len;4tl% weiv;hin;_'; o 21 185 ;;r fjr instance. Tlie drone, on the other 

 hand, is rciatix'ely -mall in si/.e ; it is 12-13 :'-:ii i" !en.yth on the dry .specimens, 

 but in li\'ing ones it is 14. S iian and 0. 1 24 t;r. '' 



The tmiLjiie of the wnrke-r is 3 mm in length. 0.5 111:11 or inorc shorter 

 than that of the Italian. 



Hiri I I -Ri-rri:\ (1906) nientiims tliat the distal, dor.sal margin of the third 

 tibi, I is in the dmne nl" iiiiica .-.trikingly jircjected ( j. Fig. 7, while it is in 

 tlie niellific drone alnmst str.iight (I'"ig. 8). The .stiff hairs of the planta of the 

 first tarsal joint are in 12 rows, 2 of which are obscure. 



4. On the Male Copulatory Organs. 



Now let us turn to the male copulatory organs which show a great deal 

 of characteristics distingnishing our bees from nnltifua. For the sake of con- 

 venience the description will be ct)mmenced with the organ e\'erted. It is simply 

 not other than a nieir.'.jranous, tulniiar, holkiw [Jouch bent doraally, and con- 

 sists of 2 portions, the proximal ,'.nd the ilisial : the latter is smooth on its sur- 

 face (except iihilifica in which a pair of so-called .symmetrical chitinous plates 

 {s, Figs. 16, iS) ,ue to l)e seen in the wall of the pouch, at the dorsal aspect 

 of the bending); the former is pro\ided, on the other hand, with a series of 

 appendages whicli are named by Sn.\Fi:K (1917) respectionely as the doubly 

 pinnate-lobed projection, the cross-striped chitinous ridges, the ventral quadran- 

 gular plate, tlie triangular plate and a pair of pneu:iiophyses. 



In the distal jiart, the Japanese drones are distinguished frcm incUfica, 

 in the first place, by the neck-like narrowance of the tube (f. Figs. 14, 15. 1/). 

 by which the proximal portion is demarkated against the distal, while in 

 Mcllijlcn the}' pass fnim one to the other ; in the .second place, the so-called 



I, 2, 3, 4) The bees alarrniiii; at llio tiilr.ince wi-re taken to the weight. 



5) Tt i-> ilic .ixernm- nunilicr c.;' ii drones. 



