CERCERIS OBNATA. 193 



Philanthus interruptus, Panz. Faun. Germ. 63. 17$. 

 Cerceris 5-fasciata, Van d. Lind. Obs. ii. 115. 9 (teste Wesm.). 



Wesm. Hyrn. Foss. Belg. 103. 4. 

 Cerceris iuterrupta, Shuck. Foss. Hym. 238. 3. 



St. Farg. Hym. iii. 7. 4. 

 Cerceris nasuta, Dahlb. Hym. Europ. i. 215. 128. 



Female. Length 5 lines.— Black, punctured and shining ; the 

 clypeus very convex, and excavated in front ; the base of the 

 mandibles, the clypeus, a large semicircular spot on each side 

 of the face, and a minute spot behind the eyes, yellow ; the 

 flagellum above fuscous or black, fulvous beneath, the apical 

 joint entirely so. Thorax : a spot on each side of the collar, 

 the tegulse, and the post-scutellum, yellow ; the legs flavo- 

 ferruginous, with the coxae, trochanters, and base of the an- 

 terior and intermediate femora, black, or frequently dark rufo- 

 piceous ; sometimes the extreme base of the posterior femora 

 stained ; wings fulvo-hyaline, slightly fuscous at their apex. 

 Abdomen : a transverse spot on each side of the first segment, 

 and an attenuated band on the four following, sometimes in- 

 terrupted ; the two central carinee on the apical segment widest 

 apart at the base, the space between them opake. 



The Male of this species so strongly resembles that of the pre- 

 ceding, that it is only necessary to point out the distinctions : 

 in this species the antennae are proportionably shorter, the 

 apical joint, although bent, is thicker, and the angles of the 

 penultimate abdominal segment are much less strongly den- 

 tate, and the pencil of hairs at their apex shorter ; the anterior 

 margin of the clypeus is not toothed ; it is also smaller, 

 varying from 3\ to A\ lines in length ; the apical segment is 

 naked in this species, whilst in C. labiata it is sprinkled with 

 hairs. 



This is a very local species : it occurs at Southend ; at Birch 

 Wood, Kent, and also at Lowestoft, Suffolk ; it is usually 

 found about the beginning of August ; it delights in frequent- 

 ing the flowers of the wild Parsnip. This is certainly the 

 5-fasciata of Van der Linden, as M. Wesmael has verified by an 

 examination of the typical specimens. 



4. Cerceris omata. 



C. nigra, flavo-maculata ; thorace interdum toto nigro ; abdo- 

 mine fasciis tribus flavis. 



Philanthus omatus, Fabr.Ent. Syst. ii. 290. 6 ; Syst. Piez. 394. 1 1 . 

 Panz. Faun. Germ. 63. 10; Krit. Kevis. ii. 174. 



K 



