in the British Museum. 



545 



the gemis Meliponorytes, Tosi, from Sicilian amber. Id is 

 larger than M. succiui, Tosi, and the stig'ma is more robust 

 (less lanceolate), but the structure of the head, anterior legs, 

 thorax, and many other features agree. The upper section 

 of the basal nervure is directed downward as in M. succini. 

 One hind tibia is surrounded by a whitish mass, which may 

 liave been pollen. The abdomen shows no trace of a ventral 

 scopa. The cutting-edge of the mandibles appears to be 

 quite simple. 



This bee can be regarded as directly ancestral to modern 

 Trigona, which abounds to-day in the tropics of both hemi- 

 spheres. 



Polyhia ohlita, sp. n. (Vespldse.) (T^ig. 5.) 



Thorax a little over 5 mm. broad ; anterior wing, from 

 base to stigma, 14 mm.; length of basal nervure 8 ram.; 

 lengtli of hind wing about 12 mm. 



Venation as shown in figure. 



Fiof. 5. 



Polyhia ohlita, sp. n. 



Oligocene of Gurnet Bay, Isle of Wight {cC Court Smith). 

 On a ])iece of rock, about 5 mm. from a fragment of Typha. 

 Brit. Mus. In. 20530, and the reverse In. 17166. 



The acute basal angle of first submarginal cell and the 

 distinct arching of anal cell of hind wing indicate PoJybia 

 rather tlian Polistes. It is much larger than F. anylica, 

 Clkll., already described from Gurnet Bay. 



Ereata. 



In the fifth paper of this series [Ann. & Mag. N. H. (9) 

 vii. 1921, p. 21] the smaller figure under Rhodites vetus is 

 from a recent insect, and shows the morphology of the sub- 

 marginal cell. In some of my earlier papers on the Gurnet 

 Bay fossils I cited the British Museum numbers without the 

 I. or In., whicli in every case should be prefixed. 



Ann. tfc Mag. N. Hist. Ser. 9. Vol. viii. H5 



