BY R. J. TILLYARD. 891 



Cuj and M. The teg-men is roughly granulate. Total length 

 of fragment, 5 mm., of clavus, 3.6 mm. In this specimen, vein 

 1A is waved, and diverges from Cu 2 much as it does in the genus 

 Eurymelidium. But 2A is nearly straight, and ends up rather 

 close to 1A. The specimen may possibly belong to the Jassidae. 



/Specimen No. 247a-b shows, in the same box, side by side, 

 portions of the cast and mould of the base of a fairly large teg- 

 men, of a dark colour and tough, leathery appearance, and Lightly 

 granulate all over. Total length of fragment, nearly 7 mm. 

 About half of the vena dividens (Cu 2 ) is preserved, with most 

 of 1A and the whole of 2A and the anal angle; there are also 

 short pieces of Cu x and M shown above these. 1A is fairly 

 straight, 2A very waved, a condition which suggests some re- 

 semblance to Scytinopterid genus Triassoscarta. (Text-fig. 22) . 



Specimen No. 257b is a nearly complete clavus, finely pitted, 

 and about 7 mm. long. 1A is waved, and diverges considerably 

 from Cu 2 . 2A is waved, and runs very close alongside the 

 somewhat flattened-in anal border. This clavus should belong 

 to some Scytinopterid genus. (Text-fig. 23). 



It is worthy of note that none of the claval areas preserved 

 in the Ipswich Homoptera, with the single exception of the genus 

 Ipsvicia, shows any formation of a Y-vein. In the Ipsviciidae, 

 the Y-vein is only just formed, 2A being, for part of its length, 

 very close indeed to the border of the clavus. But for this 

 character, the venation of the rest of the tegmen in this family 

 would suggest that they belonged to the Cercopidae, though the 

 condition of Sc is probably more specialised than it is in this 

 latter family. 



Other Unnamed Specimens. - 



Besides the above, there are no less than five specimens which 

 I have considered too fragmentary or too poorly preserved to 

 merit either naming or figuring. These are Specimens No. 

 164a, 164fr, (mould and cast, respectively, of the same tegmen), 

 176a, 184a, 192a-b and 234. Of these, No. 184a appears to be 

 a tegmen of the genus Triassoscarta, the basal part of the series 

 of costal veinlets being clearly visible. No. 192a-b shows two 

 main veins brandling much like R and M in Mesodiphthera, and 

 is evidently a small part of a large tegmen. The rest are too 

 poorly preserved to invite comment. 



