hymenoptera. 239 



6. Chlorion rugosum. B.M. 



Male. Length S-9 lines. — Head brassy-green, the margin of 

 the vertex and the cheeks with long white pubescence ; the face 

 anteriorly thickly covered with short silvery-white pubescence ; 

 the vertex is veiy finely and very closely punctured, the face 

 longitudinally rugose. Thorax rugose ; the prothorax finely 

 roughened, the mesothorax transversely rugose in front and 

 obhquely so behind ; the sides of the thorax coarsely strigose, 

 the pectus with scattered shallow punctures ; the tibiae and tai-si 

 black ; the metathorax transversely coarsely striated ; the wings 

 fusco-hyaline, their apical margins with a dark fuscous border ; 

 abdomen smooth, shining and impunctate. The pro- and meso- 

 thorax brassy-green, the metathorax blue-green. 



Hab. Sumatra. 



Genus 9. PRON.EUS. 



Dryinus, pt., Fabr. Syst. Piez. 200 (nee Lo^r.) (1804). 



Pepsis, pt., Pal. de Beauv. Ins. Afric. et Ame'r. 39. t. 1. f. 1 (1805). 



Pronseus, Latr. Gen. Crust, et Ins. iv. 56 (1809). 



The genus Proneeus very closely approaches to Chlorion, — m 

 fact coutaius its African representatives, which only differ from 

 the Indian group in having the labial and maxillary palpi longer ; 

 the number of joints are the same, and the ueuration of the wings 

 identical ; the antennae of the males are grooved longitudinally, 

 as in the genera Chlorion and Sphex. 



1. PRONiEUS MANDIBULARIS. B.M. 



Chlorion mandibulare, Fabr. Syst. Piez. 218. 3 $ . 

 Pronaeus apicalis, Guer. Voy. Abyss. {Lefeb.) vi. 357, Atlas, t. 8. 

 f . 5 & 6 c? . 



Hab. Guinea; Abyssinia; West Africa (Whydah). 



2. Pron^us maxillaris. BtM. 



Pepsis maxillaris, Pal. de Beauv. Ins. Afric. et Am&. 39. t. 1 . 



f. 1$. 

 Pronaeus maxillaris, Latr. Gen. Crust, et Ins. iv. 56. 

 St. Fary. Hym. iii. 331. 1. t. 30. f. 1. 



Hub. Africa. 



M 5 



