1903.] 277 



Janus. — Our one species is cynosbati, F., nee. L. (= femoratus, C). 



It differs from all our Cephini, except C. paUipea, ? , in the entirely black 

 abdomen ; but, unlike that species, has the antenna thin and filiform thi-oughout — 

 not in the least dilated towards the apices. A striking feature also, in typical 

 specimens, is the pale red colour of all the femora, but there is another form 

 (luteipes, Lep.) in which the hind femora are black. 



In Stephens's collection the former variety is called connectens, the latter 

 femoratus. I have never met with the species myself, but several of the form with 

 red femora have been sent to me for determination by correspondents. Mr. A. J. 

 Chitty took one this year at Brandon, Suffolk. 



Calamettta.— Our species is called by 'Konovt filif or mis, Ev. (= arundinis,G.). 



It is unlike most species in having the middle abd. segments (3 to 6) uniformly 

 margined with narrow yellow fasciae. It is rather larger than pygmceus, with a 

 stronger puncturation, more slender antennae, and the hind legs dusky both within 

 and without. Thomson and Cameron further distinguish it by the presence of a 

 single spine only on the hind tibiae, but this character does not always hold good. 



I have three ? specimens taken this year either in Wales or the West of 

 England by Colonel Yerbury, and have examined several of both sexes in the British 

 collections at S. Kensington. 



Teacheltts. — Our one species, tabidva, F., apart from its generic characters, 

 differs from anything else which occurs here in its coloration. In both sexes the 

 abdomen is black and unhanded above, but, as it were, streaked laterally with a 

 row of brownish-yellow triangular patches, which sometimes become confluent. The 

 long antennae are very thin till near the apex, when they dilate conspicuously and 

 become subclavate. I have taken it near Deal and at Swanage. 



The above are all the Cephini for whose occurrence as British I can vouch. In 

 the S. Kensington collections (Stephens, &c.) several other names occur, but the 

 insects to which these are attached all belong, if I mistake not, to species dealt with 

 above. I have looked through them all, and feel no doubt as to the following 

 identifications : — 



analis (B. M. coll.) = Jtliformis, ? . 



pusillus (B. M. coll.) = pallipes, $ . 



immaculatus " type" (B. M. coll.) = pallipes, 9 . (Another specimen so called 



is apparently a tahidus). 

 floralis, Kl. (B. M. coll.), = pallipes, 4i ^ ^ , and pygmceus, 1 9 . 



5-fasciatus = linearis. 



troglodyta = saiyrus. 



C. nigrinus, Thoras., and C. hcemorrhoidaliit, F., have been thought to occur in 

 England, and perhaps they do so. But I have never seen a British specimen of 

 either, and there are certainly none in the British collections at S. Kensington. 

 (Stephens's description of " analis," 9 , as Konow points out, suits heemorrhoidalis ; 

 but the insect which is supposed to be his " type " has a yellow-banded abdomen, 

 and is — as I have already said — a ? oi fdiformis). 



