88 MR. smith's descriptions of hymenopterous insects 



reddish-yellow ; the clypeus produced, forming a kind of beak, truncate 

 at the apex ; the terminal joints of the flagellum fulvous beneath. 

 The prothorax anteriorly, the tegulse, a spot beneath the wings, the 

 scutellum, and a spot at the sides of the metathorax, reddish-yellow ; 

 the wings subhyaline, with a dark fuscous spot in the marginal cell ; 

 legs ferruginous. Abdomen : the first segment short, transverse, and 

 bell-shaped, its posterior margin, as well as that of the following seg- 

 ment, yellow, the latter continued beneath, the anterior margin of the 

 yellow border waved, the margins of the two following segments nar- 

 rowly rufo-piceous. 



Hab. Makassar. 



This species belongs to Saussiu-e's fifth division, in which the metathorax 

 is rounded at the sides, and the clypeus more or less pyriform ; the 

 second submarginal cell is much narrowed towards the marginal. 



2. Odynerus facilis. 0. nigei-, capite thoraceque flavo-variegatis ; 

 pedibus flavis ; abdomine flavo-fasciato. 



Male. Length 4^ lines. Black ; the mandibles, clypeus, an elongate 

 spot above nearly extending to the anterior ocellus, the sinus of the 

 eyes, and a narrow line behind them, and also the scape in front, 

 yellow; the flagellum ferruginous, slightly fuscous above. The pro- 

 thorax anteriorly, two spots beneath the wings, the tegulse, a narrow 

 line at the base of the scutellum, the postscutellum and sides of the 

 metathorax, yellow ; the legs yellow, with a few ferruginous stains ; 

 the wings subhyaline, their apical margins clouded with a darker stain 

 in the marginal cell. Abdomen : a yellow fascia at the basal margin 

 of the first segment, a similar fascia near the base of the second, and a 

 very narrow one on the apical margins of the two following segments. 



Hab. Makassar. 



This species belongs to the subgenus Ancistrocerus of Wesmael ; the 

 metathorax is truncate, its sides a little rounded ; it is readily distin- 

 guished by the fasciae at the base of the first two segments. 



3. Odynerus CIRCUMSPECTUS. O. niger, flavo etaurantiovariegatus; 

 ahs hyalinis apice nigra unimaculatis. 



Female. Length 5 lines. Black ; the clypeus, a spot above it, the scape 

 in front, a line at the lower margin of the sinus of the eyes, and a line 

 behind them, yellow ; the flagellum fulvous beneath ; the mandibles 

 ferruginous. The anterior margin of the prothorax with a narrow 

 yellow line, and a large ferruginous spot on each side; a red and 

 yellow spot beneath the wings, the tegulse yellow ; the metathorax 

 red at the sides, with the edge of the truncation yellow ; the post- 

 scutellum yellow, and the legs red ; the wings subhyaline with a dark 

 fuscous spot in the marginal cell. Abdomen : the first segment 

 ferruginous, with the base and a central line black, its apical margin 

 as well as that of the second segment with a yellow fascia. 



Hab. Makassar. 



This species also belongs to the subgenus Ancistrocerus. 



