156 SMITH ON HYMENOPTEBA OE ABU ISLANDS. 



Geu. Pbiocnemis, ScJdddte. 



1. Priocnemis pulcherrimus. p. laete ruber; alls flavo-hyalinis, 

 apice late fusco, abdominis lateribus nigris. 



Female. Length 71 lines. Bright red; the anterior margin of the 

 clypeus with a minute tooth in the centre; the tips of the mandibles 

 fuscous. The metathorax slightly striated transversely, and with a 

 central as well as a lateral longitudinal groove ; the wings flavo-hya- 

 line, their apex with a fuscous cloud, which commences at the base of 

 the first discoidal cell, the extreme tips pale ; the tibiae and tarsi with 

 short slender spines ; the extreme apex of the joints of the posterior 

 tarsi black. Abdomen : the short petiole of the basal segment, and 

 the sides of the second, third, and fourth segments black, leaving a 

 red line down the middle of each ; beneath, the second, third, and 

 base of the fourth segments black. 



Hab. Aru. 



2. Priocnemis pervidus. P. capite, antennis, thorace pedibusque 

 ferrugineis ; abdomine nigro ; alis fuscis basi subhyalinis. 



Female. Length 9 lines. Ferruginous, with the abdomen black ; the 

 anterior margin of the clypeus rounded. The metathorax transversely 

 rugose ; the pectus, and coxae at their base within, black ; wings 

 brown, with a violet iridescence, their base rufo-hyaline ; the inter- 

 mediate and posterior tibiae with a double row of spines, all the tarsi 

 spinose. Abdomen shining black, with the extreme apex slightly 

 ferruginous, 



Hab. Aru. 



Gen. Macbomebis, 8t.-Farg. 



1. Macromeris iridipennis. M. caeruleo-nigra ; abdomine irides- 

 cente, alis caeruleo-violactoque splendide micantibus; pedibus rau- 

 tieis, simplicibus. 



Female. Length 12 lines. Blue-black; abdomen with a changeable 

 iridescent pile ; head and thorax with a black velvety pubescence ; 

 the metathorax very finely rugose and opake ; the legs simple ; the 

 posterior tibiae villose within ; the wings very dark brown, with a 

 splendid violet and blue iridescence. 



Male. Very closely resembling the female, but rather smaller; the 

 anterior and intermediate femora more incrassate, and all the femora 

 with a simple row of teeth or serrations on their inferior margins. 



Hab. Aru. 



Although this species of Macromeris is very similar in colour to the 



M, violacea of St.-Fargeau, the femora are not so thick as in that 



species, not in fact much more so than in the female ; and the row 



of teeth beneath is a strong specific character. 



