192 CERCERIS QUINQUEFASCIATA. 



fulvo-hyaline, with their apical border fuscous; legs reddish 

 yellow, with the coxae, trochanters, and base of the anterior and 

 intermediate femora, black. Abdomen : a spot on each side 

 of the first segment, and a transverse band on the four follow- 

 ing, yellow ; the first baud subinterrupted, the three following 

 attenuated in the middle ; the carinse on each side of the cen- 

 tral space parallel, the space finely rugose and opake, the 

 lateral spaces shining and punctured ; beneath immaculate. 



Male. Length 5 lines. The clypeus with a very minute obtuse 

 tubercle, or tooth, in the middle of its anterior margin ; the 

 flagellum fulvous beneath, the apical joint entirely so, and much 

 bent and attenuated ; the face yellow, extending a little above 

 the clypeus on each side ; the scape and basal joint of the 

 flagellum in front, and the mandibles outside, yellow ; a spot 

 on each side of the collar, the tegulse, post-scutellum, and the 

 legs, yellow; the coxa?, anterior and intermediate femora at 

 their base above, and the posterior femora at their apex, black, 

 or rufo-piceous ; the posterior tibiae and tarsi slightly ferrugi- 

 nous. Abdomen : the first segment with a spot on each side, 

 and the five following segments with bands much attenuated 

 in the middle, yellow ; the penultimate ventral segment with a 

 pencil of rigid setae at its lateral angles. 



Having several times taken this species abundantly, I give my 

 own experience of its range of variation : I have only taken a 

 single specimen of the female with a small ovate spot on the 

 head behind ; such a variety occurs but rarely in Continental 

 specimens ; none of the British examples, that 1 have seen, have 

 " a large ovate spot" on each side of the metathorax. Of the 

 males, I have found them with the yellow spot on the first 

 abdominal segment sometimes wanting, and the spot behind the 

 eyes and that on the metathorax always obsolete. 



This species occurs at Wey bridge, Surrey ; Hawley, Hants ; 

 at Southend plentifully, and at Kingsdown, near Walmer, Kent. 

 At the latter locality I took the variety of the female with a 

 yellow spot behind the eyes. Mr. Curtis has taken this species 

 in Norfolk. 



3. Cerceris quinquefasciata. 



C. nigra, flavo-maculata; clypei divisione media convexa, tantum 

 excavata ; abdomine fasciis quinque flavis ; pedibus flavo- 

 ferrugineis. 



Crabro 5-fasciatus, Rossi, Faun. Etrus. Mant. i. 139. 207. 

 Philanthus quinquecinctus, Panz. Faun. Germ.63. 12 $ (necFabr.). 



