182 BRITISH CICADA. 



flattened at its vertex, and showing wings with a 

 different neuration. The elytron is prettily spotted, 

 but without any continuous subapical border, and there 

 are fewer apical cellules. Considerable differences, 

 also, are to be noted in the wings. The five paral- 

 lel bars on the pronotum, which probably are keels, 

 recall the genus Oliarius rather than our modern 

 Cixius. 



Although these and other like examples named by 

 Berendt certainly belong to the Cixiidse, there can be 

 little doubt that some such nomenclature, for those 

 ancient insects, as Paheocixius would be preferable. 

 Yet personal examination of the insects described by 

 Berendt, and collation with foreign species, will be 

 requisite before any alteration can be made in the 

 generic names he gives. 



The simple character of the pygofers of the fossil 

 Tettigidae, so far as we can observe them, lend evidence 

 to Dr. D. Sharp's remarks that the earlier hemipterous 

 insects probably had fewer terminal abdominal seg- 

 ments than their living representatives have ; and that 

 the elaborate genitalia of later times were of a more 

 recent development. 



Fig. 22. Cixius longirostris, Ger. and Ber. This amber 

 specimen was wanting in many details ; but its 

 notable characters were the porrected vertex, and the 

 long rostrum which projects far beyond the sternum 

 of the insect. 



Fig. 25. Cixius gracilis, Ger. and Ber. Small. The 

 vertex much pointed. Pronotum^ with three parallel 

 keels. The elytron dark in colour, and variegated ■ 

 with white. 



Short notices of the other specimens selected will 

 be found on the description of Plate G. For a more 

 extended diagnosis the reader is referred to Berendt's 

 treatise, before cited. 



Copalin is a hard fossil resin, which is dug out of 

 the blue clays of Higbgate and certain sedimentary 

 strata of India. It often contains fragments of plants 



