ON THE GENUS HYMENOTES. 491 



Iv towards the hind angle ; over the fore part of the hody the leaf is double. 

 The abdomen is a little longer projected backwards than the leaf of the thorax. 



" The insect had not yet got its coleoptera and wings. 



" The hind thighs that are thicker have on the upper side an additional 

 narrow membrane added to them. 



" The head and maxillee [mandibles] are very like those of the gryllus's; 

 but there is such an affinity between this and the Cicada foliata, Linn. Syst. 

 Nat. 435, 6, that I should think it the same species if the thorax of this 

 was not broader behind towards the end. 



" The antenna are broke off, else from their length, one might learn to 

 what genus the tribe Linnaeus calls Cicada foliacece (Syst. Nat. p. 435) 

 should be referred, for I am in doubt whether Linnaeus ever has seen per- 

 fect specimens of them." 



The figure which accompanied this description (pi. 6. fig. 

 sinist.) I have copied in my fig. 67, 1 ; from which, in con- 

 junction with Fel ton's description of the hind legs and man- 

 dibles, it will be perceived that the insect is in fact a locust, 

 or at least that it belongs to the saltatorial Orthoptera. Lin- 

 naeus however, in the last edition of the ' Systema Naturae,' 

 introduced Felton's insect amongst his Cicada foliacea, un- 

 der the name of Cicada rhombea, erroneously referring to 

 Backer instead of Felton, and evidently either considering 

 that the English author had inaccurately described and figur- 

 ed his insect, which ought to have been represented with the 

 structure of Membracis, or overlooking the manifest differ- 

 ences between the true Homopterous Cicadas foliacea and 

 Felton's Orthopterous insect, thus confounding a very strong 

 relation of analogy for one of affinity. 



In the Banksian collection in the possession of the Linne- 

 an Society, named by Fabricius, is contained an insect nearly 

 agreeing with that of Felton, placed at the head of the true 

 Membraces, and named Membracis rhombea, with the local- 

 ity " Jamaica. Poore." This insect I have represented at 2 

 in fig. 67, together with its appearance as seen from above, 2 

 a, and the part which remains of its mutilated antenna at 2 b. 

 It is evidently not the specimen described by Felton, because 

 that was given to the Royal Society, the collections of which 

 Society, as I learn, were subsequently transferred to the Brit- 

 ish Museum, and Felton's insect is most likely destroyed. — 

 Moreover, the Banksian specimen has part of its antenna 

 remaining, whilst Felton describes his insect as having the 

 antenna broken off. I am particular in making these obser- 

 vations, in order that the specific identity of the Banksian 

 specimen with Felton's may be proved, especially as both are 

 from the same island in the West Indies, and the general out- 

 line of the thoracic shield is very similar in both, The foli- 

 aceous structure of the thighs notched like edges of a leaf, in 

 the Banksian specimen, seems to indicate a different species, 



