103 A LIST OF THE IIEMIPTERA OF ORIENTAL CHINA by f G.-1V. Kirkaldy PART II The first part appeared in thèse « Annales » for 1909 (vol. LUI, 177-83), and dealt with the Cicadidse and Cercopidse. The présent part concludes the Cercopidae, and enumerates the Cimicoideae. In the first part, an unfortunate printers' error occarred. On p. 183, the paragraph commencing « Distant has... » to the end, and also « Philagra Stâl. » should hâve gone on p. 182, immediately before « n° 43, P. tongoidcs ». To the Cercopidse add : 44. Machœrota punctatonervosa Signoret. — « China. » Distant (1907, Faun. Ind. Rb., IV, 79) says that « this subfamily [Machserotinae] distinctly links the Membracidae with the Cercopidse. Some writers reserve the position of thèse families; but in either case the Machœrotinœ are placed next to the Membracidae, with which they are often confused by those who hâve not specially studied the Homoptera ». I venture to say (1) that the Machaerotinae should not be placed next to the Membracidae, but on the further side from them of the whole Tetigoniid séries, and that (2) any link between them is one of superficial resemblance, and not of homological structure. The structure of the face at once séparâtes the Membracidae from any other group of the Cicadoidese, but the structure of the antennse and legs groups together the Membracidae and Tetigoniidae apart from the Cercopidae; while the more generalized Membracid nymphs are clearly modified Tetigoniids, not Cercopids. It is true that, typically, Machaerotinae and Membracidae both hâve notai processes lying more or less along the back, but there is a profound différence. In Machœrotinae this is Mesonotal, while in Membracidae it is Pronotal, and thus the ornamentation is not at ail of a homologous nature in the two groups. One might as well say that Fulgora, Philagra and Namsangia ought to be linked together because they hâve elongate cephalic processes ! The accompanying « tree » of the Auchenorrhynchi seems to me to be well founded according to our présent knowledge. It will be évident that there is not, as Mr Distant prétends, any sort of
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