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XII. A new case of Transformative Deceptive Resemblance 

 in Long-horned Grasshoppers. By B. P. Uvarov, F.E.S. 



[Read June 7th, 1922.] 



Serville described (1838, p. 409) under the name of 

 Leptoderes ornatipennis a leaf -like long-horned grasshopper 

 from Java, characterised by a very peciiHarly elongated 

 pronotum. The same insect — at least, the same genus, 

 if not species — has been redescribed and figured under the 

 same name by Charpentier (1841, pi. 12), as well as by 

 Brunner v. Wattenwyl (1878, p. 143, fig. 35), while Saussure 

 described it again (1898, pp. 228-229, pi. 9, fig. 9) from 

 Borneo and named it Eiiparlhenes gratiosa, though a little 

 later (l. c, p. 806) he sank the latter name as a synonym 

 of Leptoderes ornatipennis Serv., on Brunner's authority. 

 One more species of the same genus, L. flavipennis, has 

 been described by Brunner from Ceylon (1891, p. 70). 



The genus Leptoderes (or Leptodera, as Brunner incor- 

 rectly called it, Leptoderes being the first name under which 

 it is mentioned by Serville) has been included by Brunner 

 in the special group, Leptoderae, of Phaneropteridae, which 

 comprises, according to him, only one genus more, Tro- 

 chalodera (with a single species, T. violascens Br. Watt., in 

 it), the latter having been known to him by a larva only. 

 The description and figure of Trochalodera, given by Brunner 

 (1878, p. 143, fig. 36) reminds one strongly of the insect 

 described and figured long before by Westwood (1840, 

 pp. 419-420, pi. 28, figs. 7, 7a, 76, 7c, Id), under the name 

 of Condylodera tricondyloides, from Java, which is also, 

 evidently, a larva, and Dohrn (1892) did not hesitate to 

 synonymise Brunner's species with that of Westwood, 

 while he expressed the opinion that it was a mature insect. 



Having recently received two specimens of Condylodera, 

 taken one in Java and another in Borneo by Mr. G. E. 

 Bryant who kindly gave them to me to work out, I resolved 

 to try and find out the interrelations of all the above 

 given genera and species. This work has been made 

 possible only by the most obliging assistance of Prof. E. B. 

 Poulton, who at my request brought me from the Oxford 

 Museum the actual type of Westwood's insect together 



TRANS. ENT. SOC. LOND. 1922. — PARTS I, IT. (JULY) 



