CRABRO LUTEIPALPIS. 127 



side at the apex of the first segment; the third and fourth seg- 

 ments with an ovate macula on each side ; the apical margin 

 of the sixth segment yellow, the extreme apex ferruginous. 



The only sex which I have seen is the male ; it was captured 

 by Mr. Dossetor, in Cline Wood, near Swansea. It is undoubt- 

 edly the C. signatus of Wesmael, and I believe also of Panzer ; 

 it is very much like C. dimidiatus ; but the unarmed tibiae, and 

 the spine on the femora beneath, at their base, readily distinguish 

 it. The description of the female is from Panzer and Wesmael. 



C. — Div. 3. Abdomen subsessile. Ocelli in an equilateral triangle. 



* Antenna and tarsi simple. Base of the metathorax stri- 

 ated. (Sp. 5-9.) 



5. Crabro luteipalpis. 



C. niger, elongatus ; metathorace antice oblique striato ; man- 



dibulis flavis aut piceis ; tibiis duabus anticis subtus flavis ; 



mandibulis palpisque flavis aut piceis. Mas. 

 C. mandibulis apicibus rufo-piceis ; tibiis anticis subtus testaceis. 



Feem. 



Crossocerus luteipalpis, St. Farg. Ann. Soc. Ent. Fr. iii. 785. 23 ; 



Hym. iii. 785. 23 g . 

 Crabro elongatulus, Van d. Lind. Obs. ii. 62. 25. 



Shuck. Foss. Hym. 154. 16. 



Dahlb. Hym. Europ. i. 315. 196 g 2 . 



Wesm. Hym. Foss. Belg. 138. 18. 

 Crabro luteipalpis, Shuck. Foss. Hym. 155. 17c?. 

 Crabro hyalinus, Shuck. Foss. Hym. 161. 21 2 . 

 Crabro scutellaris, Smith, Append, Cat. Brit. Ins. p. 121 2 . 



Female. Length 3 lines. — Black ; shining and finely punctured ; 

 an impressed line between the stemmata, not passing beyond 

 them ; on each side of the posterior ones a smooth, shining, 

 oblique depression ; the anterior one has in front an obsolete 

 impressed line ; the scape of the antennae at its base in front, 

 and at the sides, fulvescent ; the tips of the mandibles ferru- 

 ginous ; the palpi pale testaceous, dusky towards their base ; 

 the inner orbit of the eyes and the clypeus covered with silvery 

 pubescence ; the cheeks pubescent. Thorax : the metathorax 

 with a cruciform consute incisure, the transverse one curved, 

 enclosing the anterior portion of the metathorax, which is con- 

 vex, smooth and shining, and delicately striated obliquely ; 

 the posterior portion transversely striated ; the wings hyaline 

 and iridescent ; the nervures and tegulae piceous ; the knees 

 and anterior tibiae in front, and tarsi at their apex, obscurely 



