Mr. Wesiwood upon Acentria, &ic. 117 



Subgenus Aprosterna, Hope. 

 The type of which is Mimela nigricans, Kirby. 



Aprosterna nigricans. 



M. nigro-picea, capite thoraceque-punctatis, antennis brunneis. 



Long. lin. 7. 

 Descr. — Corpus oblongum, glabrum, nitidum nigro-piceum. Caput 

 feneo tinctum, punctaturn, punctulis baud interpositis ut in 

 M. Chinense ; puncta antica confluunt. Antennae brunnese, 

 Prothorax ^eneo tinctus, punctatus, punctulis baud interposi- 

 tis. Elytra punctata, punctis quibusdam sparsis et aliis seri- 

 atim ordinatis, seriebus per paria dispositis. Punctula itidem 

 minutissima inter hsec puncta interposita. In aliis M. Chinen- 

 sem exactissime refert hsec species, sed minor est. 



Habitat in China. 



Mus. Dom. Hope. 



DESCRIPTION OF THE FIGURES. 

 PLATE X. Fig. 7. 

 Mimela Chtnensis, and its details. 

 7(7. Labrum. 7 &. Mandible. 1 c. Mandible seen in front. 7?. Maxilla. 

 7/. Instrumenta labialia. "i g. Antenna. 7 h. Head and prothorax 



in profile. 7?'. Metastermum and posterior trochanter. 7^". Foreleg. 

 11. Middle leg. 1 m. Posterior leg. 



XXIV. Note upon the British Genera Acentria, Acentro- 

 pus, and Zanele. By J. O. Westwood, F.L.S., S^c, 



[Read July 7, 1834.] 



In Mr. Stephens's Catalogue of British Insects, Mandibulata, p. 31 6, 

 we find the following entry : 



" Genus 28. (549), Acentria, inihi. 



Phryganea, p. Olivier ? 

 " 3562. 1 : nivosa. 



Ph. nivea, Olivier? Latr. t. xiii. 93 ?" 



This genus is placed in the order Neuroptera, and family Perlidee. 

 In Mr. Curtis's Guide, col. 137, the same genus is introduced, but 

 it is inserted at the end of the Trichoptern, and is numbered 762. 



k2 



