'j^. Cameron, Hymenoptera Orientalia. 



punctured ; the labrum fringed with long, pale hair. 

 Mandibles black, shining, the base covered with long, 

 fuscous, intermixed with shorter, silvery hair ; their apices 

 shining, armed with one large, somewhat triangular, tooth 

 at the apex ; the base strongly punctured. Antennae 

 short, black, the apical half dull rufous on the under side ; 

 the scape with a few short hairs ; the flagellum bare, 

 shining. Pro- and meso-notum thickly covered with 

 longish hair ; longer and paler on the pronotum ; closely 

 rugose ; the scutellum, if anything, more strongly rugose 

 and with the hair longer ; the median segment with a 

 perpendicular slope, thickly covered with long, pale hair. 

 Pleurae thickly covered with long, black hair; the lower 

 part of the mesopleurae excavated, shining; the lower part 

 of the metapleurae smooth. Abdomen shining, pilose, the 

 segments fringed with white hair ; the ventral surface 

 thickly covered with longish, stiff, blackish hair. Femora 

 sparsely; the tibiae and tarsi very thickly covered with 

 long, black hair; the fore coxae simple, not spined. 



Tetralonia. 

 Under this generic name Bingham describes two 

 species — T. duvancelii 'Le^. = elegans Sm., and T. hima- 

 layensis Bing. In these two species the maxillary palpi 

 are said to be 6-jointed. Whether this is an original 

 observation, or merely copied from Smith {Cat. Hym.^ ii., 

 p. 297), who also gives six joints to the maxillary palpi of 

 Tetralonia^ I am unable to say. Apart from the difference 

 in the number of palpal joints, my species agrees in the 

 other generic characters with Tetralonia as given by 

 Bingham. In both the species here described the maxil- 

 lary palpi have only four joints, as have also the labial. 

 Latreille, who first described Tetralonia, gives five as the 

 number of joints in the maxillary palpi, this being likewise 

 the number in Smith's genus Xenoglossa. Mr. W. H. Patton 



