48 



Gehin speaks only of " quelques poils rares;" because their form 

 is notably shorter and wider than the form of Yarrelli, while 

 Gehin seems to say that flavipennis is "narrower and longer than 

 Yarrelli, — but it is not quite clear he may not mean that Yarrelli 

 is narrower and longer than Jlavipennis (which is the more likely 

 since Yarrelli is a particularly narrow and elongate species); and 

 because their sterna and hind coxae are variably (but always 

 considerably) variegated with yellow, whereas in flavipennis they 

 should be entirely green. The last-named discrepancy is of less 

 consequence inasmuch as GehhVs description is evidently care- 

 lessly written containing the statement that the "ventre et bords 

 posterieurs des segments abdominaux " are of a beautiful green 

 colour. The ventral segments of the specimens before me are 

 yellow, with their (except the apical one) hindmargins green. 

 Gehin says that tf. jlavipennis is allied to " Yarrelli and 

 flavipennis" (the latter name obviously a misprint). The species 

 I am discussing (and for which I claim the name flavipennis, 

 Gehin, until the claim may be shown erroneous by an inspection 

 of Gehin's type) is smaller than Yarrelli (Long., 9 — 10 1.) and 

 notably less narrow and elongate. Its under surface and legs are 

 considerably more closely punctulate, its sterna quite densely 

 clothed with long white hairs. Its head is pilose, the sutural 

 apex of its elytra bears a distinct (though not long or very sharp) 

 spine limiting a distinct (though feeble) truncation of the apex 

 of each elytron. Its colours and markings are very similar to 

 those of Yarrelli except on the elytra where they are quite 

 different. The elytra vary from uniform reddish testaceous 

 (except the extreme base) to a form in which there is a small 

 common sutural cyaneous spot a little behind the scutellum, a 

 row of four cyaneous spots placed transversely (two on each 

 elytron) slightly behind the middle and a narrow cyaneous edging 

 of the apex. The insect is found in S.W. Australia. It is to be 

 noted that in the type of Yarrelli, Hope (as described by Mr. 

 Saunders, Tr. Ent. Soc, Lond., 1868, p. 32), and in examples in 

 my collection the apex of the elytra is simply rounded, while in 

 other specimens before me (otherwise indistinguishable) the apex 

 of the elytra is slightly truncated and the apex of the suture is 

 slightly produced (though less so than in flavipennis). 



S. elegans, Gehin. This insect (referred to above as possibly 

 identical with flavipennis, Gehin) is more probably, I think, a 

 distinct species that I have not seen. I cannot understand its 

 being called a variety of Yarrelli as no variety of the latter 

 (observed by me, — and I have seen many) much resembles it in 

 markings, and the size (12 — 13 mm.) greatly increases the diffi- 

 culty of supposing it to be Yarrelli. Its author mentions having 

 seen a good many specimens and the varieties he indicates are 



