NATURAL SCIENCES OF PHILADELPHIA. 329 



basal ones well defined acnte, luit not prominent. It is subvittata 

 of my synopsis, Journ. Acad. Nat. So., 2d. ser. iii. 279. 



106. Melolontha paradoxa Beauvois, according to Salle, is 

 Bhijndandrus Jiabellicornis (Sturm). 



107. The Australian genera Phyllotocus and Macrothops Mc- 

 Leay are related to Oncerus Lee. in form and by the double 

 epistoma. 



108. Cheiragra McLeay from Australia is allied to Chnaunan- 

 THUS Burm. and Acratus Horn. The position of the spiracles 

 must be obserA'cd in these genera to determine their true affinities. 



109. Liogenys, Homalochilus, and Hllarianus have the propy- 

 gidiura connate with the fifth ventral as in Diplotaxis, which they 

 resemble in form and sculpture. 



110. Hypotrichia Lee. and Plectrodes Horn agree inform and 

 general characters with Clavipalpus, but the last differs in having 

 the ungues alike, and armed with a broad acute tooth. The pro- 

 P3'gidium is connate wath the fifth ventral and the spiracle is placed 

 on the connecting suture ; the fifth ventral is elongated. 



111. Leuretra Er. resembles Clavipalpus b}' the fifth ventral 

 being elongated, but the mouth organs are less developed, as in 

 other Pachypodidfe, with which the three genera mentioned in 110 

 must probably be associated. 



112. Diplotaxis GEORGiiE; Blanchard (Paris Museum) is similar 

 to D. SUBCOSTATA Blauch. but larger, with the prothorax more 

 sparsel}'^ and coarsely punctured, and the interspaces of the elytra 

 flatter and not subcostate behind. D. moesta of the same collec- 

 tion seems only an individual variation of subgostata, larger 

 than usual, with the punctures of the occiput and prothorax more 

 feeble. 



113. D. Harperi Blanch, is allied to excavata, but is ferrugi- 

 nous, with the epistoma rounded, not at all truncate, and frontal 

 carina impressed at the middle. . 



114. D. frondicola | Blanch, is also ailied to excavata, black, 

 with the elytra a little more rugosely punctured ; seems onlj' an 

 individual variety. 



115. D. punctato-rugosa Blanch, is excavata Lee. The form 

 is not "breviter ovata" as described, and the upper tooth of the 

 front tibise is feeble. The description being erroneous, the name 

 should be dropped into synonymy. 



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