INTRODUCTORY REMARKS, 

 and its interior palpi consist of three {s), instead 

 of four joints. In his character of Pompihis the 

 labium is described as rounded, corneous, and en- 

 tire ; whereas, in Pompilus viaticus, that organ is 

 trifid(^). He takes no notice of the callous tips 

 which distinguish the lobes of the tongue in 

 Vespa {ii), and he calls the valvulce acute, when 

 they are rather rounded (^). Whether, by his 

 Philanihus, he intends those vespiform insects, the 

 sides of whose abdomen are crenate, of which 

 Panzer has figured so many under that name {y), 

 I am not certain, but if he does, his characters are 

 very different from those of such species as I have 

 examined : for the valvulce instead of being bifid 

 are entire (z), and the labium is not entire and 

 rounded, but divided at its apex into two lacerato- 

 ciliate lobes [a). The valvulcC in his genus Crabro 

 are called bifid, and the labium obconic. In Crabro 

 cribrarius the former are entire and rounded at 

 the tip {b), and the latter is rather attenuated in 

 the middle (c). From these remarks, we cannot 

 avoid concluding, either that Fabricius is not al- 

 together to be depended upon for accuracy, or 



(i) Tab. 14. N° 6. e. (t) Ibid. N° 4. fig. 2. (u) Ibid. 

 N° 8, fig. 1. cccc. (x) Ibid. fig. 2. b. Kirby in Lin. Trans. 



vol.4, p. 212. Tab. 19. N°4. fig. 1. (3/) E. G. Philanthus 



semicinctus, N° 47. Tab. 24. P. hortorum, N° (53. Tab. g. &c, 



(x) Tab. 14. N°7. fig. l.a^. («) Ibid. fig. 2. (i)Ibid, 

 N°5. fig. 2. b. (t) Ibid. fig. 1. b. and DeGeer, torn. 2. 



P'«, 2. Tab.25. fig. 12, e. 



D 3 that 



3/ 



