TO NEW GUINEA IN 1904 AND 1905. PART II. 35 



and mesopleiirie weakly, the metapleuree closely and strongly 

 punctured. Areolet oblique, not much narrowed in front ; 

 there is a slight indication of a stump on the 2"*^ transverse 

 cubital nervure. 



Biröia nigriœrnis sp. nov. 



Reddish-yellow, the flagellum of antennae, the back of the 

 abdomen and the hind calcarla and tarsi, black, the sides and 

 the ventral surface of the basal 2 abdominal segments white ; 

 wings fuscous hyaline, the nervures and stigma black. cT. 



Length 8 m.m. 



Etna Bay. 



Antennge much longer than the body ; the flagellum brow- 

 nish beneath ; the scape sparsely covered with black hair. 

 Face strongly, but not closely punctured ; the clypeus is 

 weakly punctured above, impunctate below. Mandibular teeth 

 black ; the palpi covered with white hair. Thorax thickly 

 covered with pale pubescence ; mesonotum closely punctured ; 

 the scutellum, except on the apical slope (which is smooth), 

 is more closely punctured. Metanotum smooth ; on its base 

 are 5 areae ; the central is longer than broad, roundly narrowed 

 at the base, transverse at the apex ; the lateral 2 are wider 

 and of equal width throughout ; on the apical slope are also 

 5 areae ; the central is smaller than the others and almost 

 triangular ; the others are square. Propleurae smooth, weakly 

 punctured round the edges ; there is [a broken keel in the 

 basal central area. Meso- and metapleurge closely and strongly 

 punctured. Abdomen not much longer than the thorax, smooth 

 and shining ; the apical segments covered with white pubes- 

 cence. Areolet narrowed in front, but the nervures clearly 

 separated ; the 2°*^ nervure not broken by a stump ; the 

 transverse median nervure interstitial. 



The areolet is not so square as it is in B, ßavipennis as 

 figured by Enderlein, Zool. Anzeiger, XXVIII, p. 451. 



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