Classification of the Rutelidae. 369 



Soller's genus Trihostethes must also be renamed, being 

 quite distinct from the true Trihostethes of Curtis. I propose 

 to call this insect [T. ciliatus, Sol.) Pseudadelphus. Owing to 

 the very inaccurate drawing of the figures in the. ' Historia de 

 Chile ' the identity of this species has been in doubt, but if 

 these are neglected the description is sufficient for its recog- 

 nition, although, following the drawing, tlie claws are wrongly 

 described as entire. Besides its divided claws it differs from 

 Trihostethes castaneus, Curtis, by the thickly hairy anterior 

 half of the pronotum, the antennae of moderate length in the 

 male, and the absence of a median process to the labium, in 

 which it more closely approaches Callichloris. 



To the latter genus belongs Platycoelia nigricauda, Bates, 

 as the extremely short mesosternal process and the form of 

 the mouth-parts indicate. Bates's genus Leucopelcea must 

 also be placed in immediate proximity to Callichloris^ if, 

 indeed, it can be regarded as distinct. The author was appa- 

 rently not acquainted with the latter genus. 



I may remark here that Lacordaire appears to have been 

 mistaken in his mention of the prostenium of Callichloris, 

 " munie d'une saillie post coxale courte et coraprimee." There 

 is really nothing more than the usual slight tumidity behind 

 the front coxae. 



In the genus Platycoelia, flavostriata of Burmeister must be 

 distinguished from the true Jlavostriata, Latr., of which a 

 type specimen received by Dejean from Latreille is in the 

 British Museum. There is good reason to believe that 

 Latreille's description was drawn up from this specimen alone. 

 It belongs to Burmeister's first section of the genus, in which 

 there are no raised costai upon the elytra. The false P. Jlavo- 

 striata may be called P. Burmeisteri. The identity of the 

 two species was queried by Blanchard in the ' Catalogue de 

 la Collection Entomologique.' 



The position of Solier's Catoclastus Chevrolati has long 

 been a matter of doubt. Lacordaire was unable to assign a 

 place to it on account of its so-called 9-jointed antennae, while 

 Philippi seems to have believed it to belong to the genus 

 Brachysternus. A specimen of the insect is in the British 

 Museum, labelled by Blanchard, with whom its name origi- 

 nated, and I am able to state that it should be placed in the 

 genus Pelidnota, in the neighbourhood of P. ignita, Oliv. 

 The antennffi are 10-jointed, but the seventh joint, as in the 

 rest of the genus, is very short and in this species rather less 

 apparent than usual. 



Pelidnota prasiiia, Burm., must be regarded as a variety of 



