278 Mr. E. Saunders' Sijnojisis of Brituli 



(2) 1. Petiole very long and tbiu ; 1st joint of abdomen 



twice or nearly twice as long as the 2nd . . atte7iuatum. 



(1) 2. Petiole shorter and stouter; 1st joint of abdomen 



not nearly twice as long as the 2nd. 

 (4:) 3. Larger ; antenna3 scarcely clavate ; legs entirely 



biaclc . . . . . . . . . . . . figulus. 



(3) 4. Smaller; antennae more or less clavate ; knees and 



• larsi i^iceous . . . . . . . . . . clavicerum. 



1. Jjgulus, Linn. Syst. Nat. ed. x. vol. i. p. 570. Fig. 



Panz. Faun. Germ. 80, 16. 



Black ; apex of the mandibles red. Head and thorax 

 dull, very finely and closely punctured, covered with very 

 short greyish hairs ; antennge scarcely thickened at the 

 apex ; scutellum less closely punctured and somewhat 

 shining; metathorax radiately rugose at the base, 

 shallowly channelled down the middle, covered with 

 short silvery hairs, transversely striate at its sides ; wings 

 with a slight apical cloud; abdomen covered with 

 exceedingly short grey hairs ; the apex of each segment, 

 especially in the <? , with a greyish band, widest at the 

 sides ; this is very liable to be rubbed off in old speci- 

 mens ; basal joint of abdomen not quite once and a half 

 as long as the 2nd ; apical segment in the ? with long 

 bristly hairs ; legs finely clothed with greyish hairs, 

 their sides towards the body with a shining, sericeous 

 pubescence. 



Length 12—13 mill. 



Very common, and generally distributed ; appears in 

 June. 



2. clavicerum, St. Farg. Enc. Meth. x. p. 750. 

 Smaller ihanfgulus, and easily distinguished by the 



shorter clavate antennae, especially in the 3' , the apical 

 joint being little longer than wide, the much more promi- 

 nent forehead between the eyes, and the pale tegula3 and 

 pale knees, and occasionally more or less pale tibise. 

 Length 6 — 8 mill. 



Hah. — Common, and generally distributed. . 



3. attennatum, Sm. Cat. Brit. Hym. App. p. 120. Fig. 



Smith Brit. Foss. Hym. pi. iv. fig. 2. 

 Narrower than either of the preceding, and at once 

 distinguishable by the long thin 1st segment of the abdo- 

 men, which is twice as long as the 2nd ; the joints are 

 altogether more slender, being as long as or longer than 



