a few Melolonthine Cohoptera. 27 



and puncturafcion of the upper surface are characteristic of 

 the females of both the genera in question. This is especially 

 striking in the following new species : — 



Empecta disparilis } sp. n. (PI. I. fig. 3.) 



Nigra, elytris pedibusque rufescentibus, corpore toto squarais 

 minutis vestito (maris supra dense), elytrorum humeris et 

 epipleuris scutellique lateribus efc linea mediana nudis, pectore 

 haud dense fulvo-hirsuto ; elongato-ovata, capite dense rugoso, 

 margine antica laevissime arcuata, haud excisa ; pronoti lateribus 

 fortiter bisinuatis, antice valde approximatis, angulis anticis 

 acute productis, posticis obtusis ; pygidio crebre punctato-rugoso 

 et setoso : 



S , corpore supra toto opaco, densissime flavo-squamoso, pedibusque 

 omnibus gracilibua : 



2 , corpore supra modice nitido, grosse punctato, punctis squami- 

 feris, pedibus posticis multo brevioribus. 



Long. 17-19 mm. ; lat. max. 9-10 mm. 



Madagascar : Diego Suarez. 



The difference between the sexes is very strongly marked. 

 The male is entirely opaque above and densely clothed with 

 perfectly uniform yellow scales. The female is more shining, 

 the pronotum covered with large dense punctures each con- 

 taining a scale, and the elytra rather coarsely punctured, 

 each puncture similarly giving rise to a scale, and the punc- 

 tures of the inner half tending to coalesce transversely. The 

 posterior half of the pygidium is also more coarsely punctured 

 and shining in the female, and the hind legs are much 

 shorter and stouter than in the male. 



Lepidiota fiavimargo, sp. n. 



Fusca, corpore supra et subtus dense albo-squamoso, elytris rufes- 

 centibus, lateribus pallidioribus, denudatis, squamis nonnullis 

 minutis parce ornatis ; elongato-ovalis, undique coriaceo-punctata, 

 elytrorum lateribus exceptis, clypeo haud lato, margine antica 

 medio laevissime sinuata, prothoracis lateribus serratis, antice 

 fere rectis, post medium arcuatis, angulis omnibus obtusis, pygidio 

 postice leviter sulcato, mesosterno medio compresso, vix producto : 



<3 , tibiis anticis bidentatis, tibiarum posticarum calcaribus angustis, 

 spinosis : 



5 , tibiis anticis tridentatis, tibiarum posticarum calcaribus latis- 

 simis, spatulatis, extremitatibus translucentibus. 



Long. 39-52 mm. ; lat. max. 20-26 mm. 



BRIT. N. Borneo: Sandakan (C. V. Creagh, W. B. 

 Pryer), Sarawak (J. C Moultoii). 



