30 Mr. P. Cameron on new Aculeate Hymenoptera 



above, below reaching to the base of the mandibles. Clypeus 

 broader than long, its apex transverse. Mandibles broad at 

 the base, the apex of the incision with a stout tooth on the 

 lower side ; the apex has one tooth. Scape of antennae short, 

 broad ; the pedicle is covered thickly with pale pubescence. 

 The pronotum behind rises to the top of the mesonotum. 

 Median segment as long as the mesothorax ; its sides at the 

 apex rounded. Metasternal process depressed, its apex incised. 

 Legs stout ; the tibiae sparsely, the tarsi more thickly spinose ; 

 their spines ,long and stout ; the femora stout ; the hinder 

 pair have the apical half distinctly narrowed ; the fore 

 calcaria are curved, the hinder are half the length of the 

 metatarsus. Wings as in Larra; the apical abscissa of 

 the radius is straight, not curved, and has an oblique slope. 

 Pygidial area shagreened, bare ; the sides carinate. The head 

 is distinctly wider than the thorax. 



This genus is readily separated by the unusually long tarsi 

 with their joints dilated towards the apex as in Ainpulex, and 

 by the long claws with the tooth near the base. 



Leptolarra flavinerva, sp. n. 



Nigra, dense argenteo pilosa; alls flavo-hj'alinis, nerns flavo- 



testaceis ; segmento mediali striolato. 5 . 

 Long. 15 mm. 



Hah. Barrackpore {Rothney). Oolh Rothney. 



Antennai black, the scape keels rufous; the flagellum 

 prninose. The front, face, and oral region thickly covered 

 with silvery pubescence ; the vertex alutaceous, minutely 

 punctured ; the clypeus shining. Mandibles black, the base 

 thickly covered with silvery pubescence ; above each antenna 

 is a smooth shining spot. Pro- and mesothorax alutaceous, 

 covered with a silvery down. Scutellum more shining and 

 more distinctly punctured. The basal region of the median 

 segment is distinctly, irregularly, transversely striated, almost 

 forming reticulations at the base; the strife become weaker 

 towards tlie sides, and down the middle is a longitudinal 

 keel ; the oblique apex is furrowed down the middle, above 

 it is finely obliquely, below more strongly transversely striated. 

 The furrows on the mesopleura^ are obscurely striated. The 

 metasternal process is keeled down the middle. Metapleuras 

 closely, obliquely striated. Wings yellowish hyaline ; the 

 stigma and costa dark testaceous; the nervures yellowish ; 

 the first cubital cellule is as long as the second ; the second 

 recurrent nervure is received shortly behind the middle of the 

 cellule and is roundly bent backwards in the middle; the first 



