Australian Braconidae in the British Museum. 97 



Abdomen opaque, very finely rugose; second and third .sutures 

 crenulate. First tergite short, with a longitudinal carina which 

 does not reach the apex; second tergite longer than the third, 

 broadened from the base, shorter than its apical breadth, the 

 median area large, not sharply defined, triangular, the apex of the 

 triangle touching the apical margin. First abscissa of the radius 

 much shorter than the second, nearly as long as the second trans- 

 verse cubital nervure; nervulus not quite interstitial, received a 

 little beyond the basal nervure. 



Hah. N. Queensland, Mackay (Turner), April 1900, 

 May 1899, 3$°; TownsviUe (F. P. Dodd), 1 <?. 



Differs in the points of neuration mentioned from typical 

 Macrobracon, which has the second abscissa of the radius a 

 little shorter than the first, whereas in the present species 

 it is nearly half as long again. This is due to a lengthening 

 of the second cubital cell, and not to a shortening of the 

 first abscissa of the radius. 



To this genus also belong Iphiaulax clavimaculalus, 

 Cam. and Strand (1912), from Flores, and Iphiaulax fulvo- 

 pilosus, Cam. (1905), from Ceylon, in both of which the 

 second cubital cell is much longer than in the typical species 

 of the genus, as is also the case in Iphiaulax megapterus, 

 Cam. (1905), (nee Cam. 1887) = successor, Schulz (1906), 

 which also belongs to the genus. I have not seen males of 

 any of these species. 



Genus Megalommum, Szep. 

 Megalommum annulatum, sp. n. 



$. Nigra; capite thoraceque rufis; antennis segmentoque mediano 

 nigris; segmento abdonhnali primo ventrali, tergite primo lateribus, 

 segmentisque 3-7 margine apicali anguste albidis; alis fusco- 

 hyalinis, stigmate venisque nigris. 



o- Fenhnae similis. 



Long. $, 9 mm. ; terebrae long. 2 mm. ; <§, 8 mm. 



$. Face finely rugose, not very narrow; eyes large, widely but 

 shallowly emarginate on the inner margin near the base of the 

 antennae; front deeply hollowed between the base of the antennae 

 and the anterior ocellus ; the vertex smooth and shining. Thorax 

 and median segment smooth and shining, the parapsidal furrows 

 almost entirely obsolete. First tergite broadened from the base, 

 nearly half as long again as its apical breadth, the black median 

 portion separated from the white lateral portions by distinct 



TRANS. ENT. SOC. LOND. 1918. — PARTS I, II. (DEC.) H 



