120. Journal New York Entomological Societv. [Voi. v. 



the largest B. fervidiis, and the female pup^e differ in the same char- 

 acters as already given for the worker pupte. In this species, as in all 

 other bees and wasps, the only external difference between the workers 

 and females is that of size. 



The female pup^ were all of one and the same size, white and naked. 



Apis mellifica Lin7i. 



Larva of Worker. — I am not aware that a careful and comparative de- 

 scription of the larval honey-bee worker has been published. The follow- 

 ing descriptive comparisons have been made with larva of the bumble bee : 



Closely resembles larva of Bombus, but the body is shorter, broader, 

 flatter, with the head less prominent than in Bombus. The body is much 

 rounded towards the head and abdomen, tapering very equally at both 

 ends ; the segments but slightly convex, while the lateral region is less 

 prominent than in Bombus, less so than usual ; and the posterior por- 

 tion of the segments is less thickened than usual. On the anterior part 

 of the back (tergum) of each ring is a broad sublunate area, behind 

 which, and especially on the sides, the ring becomes more convex. The 

 tip of the abdomen is subelliptical, being round, but longer than broad ; 

 the tergites and sternites not well marked. It, however, resembles the 

 larval Bombus quite closely. Genitals well marked on eighth ring at 

 front edge, appearing as two minute parallel slender tubercles, also a 

 pair on the ninth and tenth segments less distinctly marked, but a little 

 larger. The head is of about the same proportion to the rest of the body 

 as in Bombus ; it is a little longer than broad, the front not very con- 

 vex. Eye-ring not very full. The median line between the eyes is 

 deeply impressed. The antenn?e each form a deeply depressed minute 

 tubercle on each side of the base of the clypeus. Supraclypeal area in- 

 distinctly marked. The clypeus is square, as long as broad, much 

 longer and narrower than in Bombus. The labrum is broad, bilobate, 

 covering the ends of the mandibles; broader and more transverse than 

 in Bo??ibus. The maxillae are rather slenderer than usual, subacute, 

 ending in a minute acute spine. Labrum as usual, ending in a slightly 

 chitinous transverse ridge. Mandibles cylindrical, acute, ending in a 

 single point, more fleshy, and more like the maxill?e than usual. 



Position of Larva — It is doubled on itself in the bottom of the 

 cell, being more doubled than in Bombus, and with a softer, thinner 

 skin. The cell of the semipupa is closed over, and the body of the latter 

 is elongated and extended along the length of the cell. There is nothing 

 in the shape of the larva to justify the inference that Apis is not a higher 

 genus, more specialized, than Bombus. 



