Aulacophora and allied genera. 299 



Sp. 7. siinilis, Oliv. 



flavipes, Jac. 



M. Olivier, in his description, gives the labrum as 

 sometimes black, and has apparently mixed up the 

 present species with cojfece, Horns, in which latter the 

 labrum is always black ; in similis, on the other hand, 

 it is constantly flavous. He also describes the sulcation 

 of the thorax as straight ; this is the case, or nearly so, 

 in the 2 of similis, but in the t? its middle third is 

 curved backwards and more deeply impressed ; in coffees 

 the groove is nearly straight and of equal depth in both 

 sexes. The scutellum in this species varies from black 

 or nigro-piceous to flavous. 



Sp. 8. detrita, Fabr.? 

 The true detrita, Fabr., belongs to the genus Mala- 

 cosoma. 



Sp. 9. cornuta, Baly. 

 In the short description given in the Synopsis, men- 

 tion is made of a long protuberance on the labrum, no 

 notice being taken of the horns on the clypeus, present 

 in the ^ of my species ; M. AUard must therefore have 

 had another insect under examination. 



Sp. 10. plicaticollis, Allard. 

 This insect is probably a variety of similis^ Oliv. 



Sp. 12. dilatata, Jac. 

 One of the numerous varieties of luteicornis, Fabr. 



Sp. 13. unicolor, Jac. 

 Jlavescens, Chap. 

 Chapuisi, Duv. 



Chapuisi, Duv. {flavescens, Chap.), is less than half 

 the size of unicolor, and is a quite distinct specific form. 



Sp. 22. bicolor, Weber. 



sexnotata, Chapuis. 



M. Allard has drawn up his specific characters from a 

 pale variety of this species, not mentioning either the 

 typical coloration, as described by Weber, or the spotted 



