INTRODUCTORY REMARKS, 

 shall shew hereafter that this circumstance charac- 

 terizes the male only. The number and descrip- 

 tion of the parts of the proboscis does credit to the 

 accuracy of this great author ; but the setuloe, at 

 least in A. longicornis, are not " marline glabra," 

 for, if they are examined under a good magnifier, 

 they will be found to be ciliate on one side(/). 

 He takes only the opex of the valvulce for his la- 

 mime,' for he describes them as ^' hasi coarctatce et 

 palpigen-e ;" when, in fact, if the entire valvula be 

 separated from the proboscis, it will be found nar- 

 rowest in the middle, with a feeler emerging from 

 its lateral sinus (^•). In other respects, this cha- 

 racter is most accurate, and if he had examined the 

 proboscis in his next genus with equal accuracy, he 

 would have discovered the same number of parts, 

 although not retaining the same proportion with 

 respect to each other. 



APIS. Rostrum ] . Siphunculo medio. 



2. Fcilvis binis siphunculo brevi- 



oribus. 



3. Laminis binis palpigeris. 



This character is also accurate as far as it goes, but 

 in it he omits the lacinice interior es, answering to 

 the setuU of his Eucera, which distinguish all 

 genuine Apes, though in some they are not easy 

 to be discovered {h) . 



(/) Tab. 10. **. d. 1. fig. 3. c. (g) Ibid. %. 1. d. 



(A) Tab. 13. **. e. 2. fig. 1. //. 



ii 4 NOMADA. 



