1030. I y-f. 



8 (7) Length, 2^—3 lines ; the 3rd and 5th segments banded with yellow ; head 



transverse ; vertex scarcely emarginate p usillus. 



9 (3) Abdomen with a row of triangular yellow spots along the sides ; none of the 



segments banded tahidus. 



4. Cephus aeundinis, G-iraud (vol. ii, pi. vii, fig. 3), 



= quadricinctus, Thorns., ^Jiliformis, Andre. 



The one spine on the hind tibise (which are black), the greater number of yellow 

 bands on the abdomen, the cubical head emarginate behind, and the closely punc- 

 tured head and thorax, easily separate this species from the others in this section. 

 The greater extent of the yellow coloration on the face of the S , and the yellow 

 front legs make it easy of identification. 



5. Cephtjs phthisicus, Fab., 

 = pallipes, Htg., = cultrarius, Htg., = immaculatus, Ste. 

 A distinct and common species. 



6. Cephtjs tabidus, Fab., 



= longicollis, Fourc, = mandibular is, Lep. 



The row of yellow spots on the abdomen of this species makes it easy of recog- 

 nition. 



7. Cephus teoglodtta. 



This is a larger species than pygmcBus ; the antennae are shorter and less 

 thickened towards the apex ; the yellow bands on the abdomen are narrower, and 

 there is no yellow on the last segment ; the stigma and nervures are testaceous, 

 not black, as in the common species ; the J is readily known by the black breast ; 

 the legs do not differ in coloration from those of the ? . 



8. Cephus ptgm^us, Lin. 

 The common and destructive species. 



9. Cephus pusillus, Ste. 



I believe this is a distinct species. It differs from pygmaus in being smaller, in 

 the antennae being longer and brownish towards the apex ; there are only two 

 yellow bands on the abdomen in the ? , and the posterior tibise and tarsi are yellowish- 

 testaceous ; the costa and stigma are lighter in colour, the transverse radial nervure 

 is received nearer the apex of the 2nd cubital cellule, which is shorter compared to 

 the 3rd. The S is readily known from that of pygmaus by the breast and pleurae 

 being quite black. It resembles the $ of pallipes, but its abdomen is shorter and 

 broader, and has not so many, nor so broad, yellow bands ; and the 2nd cellule is 

 distinctly longer compared to the 3rd. 



20, Beech Eoad, Sale, Cheshire : 

 November, 1885. 



