HYMENOPTERA. 



with sooty black pubescence, palest on the sides and beneath ; 

 the legs dark fusco-ferruginous, above clothed with dark fuscous 

 pubescence ; the floccus on the posterior femora long, thick and 

 of a pale yellow ; the fringe on the tibiae pale ; the tibiae much 

 dilated, slightly bent inwardly ; the basal joint of the tarsi broadly 

 dilated, the second heart-shaped, the third narrower, but of the 

 same length and shape, the fourth very small ; claws short, stout 

 and somewhat blunt ; anterior wings having one marginal cell, 

 the radial nervure of which curyes inwardly to the point of union 

 with the transverse nervure of the second submarginal cell, from 

 whence it is straight to the transverse nervure of the third sub- 

 marginal, whence it passes obliquely upwards to the apex of the 

 costal nervure ; the second submarginal cell not more than one- 

 fifth as wide as the first submarginal, the third slightly narrowed 

 towards the marginal. Abdomen delicately punctured, green, 

 the base of the first segment and its sides densely covered with 

 pale, nearly white pubescence, the apex clothed with sooty black 

 hairs ; beneath the abdomen is fulvous, except towards the apex, 

 the margins of the segments depressed and fringed with fulvous 

 pubescence, the fourth and fifth with black. 

 Hob. Not known. (Coll. W. Wilson Saunders, Esq.) 



Genus 4. LEIOPROCTUS. 



Leioproctus, F. Smith's MSS. 



Head transverse, nearly orbicular, of about the width of the 

 thorax ; antennae placed in a slight curve on the vertex ; mentum 

 of moderate length, about three-fourths longer than the labium ; 

 the latter emarginate at the apex, and having at about half its 

 length a transverse process notched in the middle and sinuated 

 on each side ; at the lateral extremities of this process are placed 

 the paraglossae, dilated and pubescent at their apex; the la- 

 bial palpi four-jointed, the basal joint about equal in length to 

 the two following ; the maxillary palpi six-jointed, the three 

 basal ones of equal length, the following gradually a little 

 shorter, the apical one very slender. Thorax ovate, the supe- 

 rior wings having one elongate marginal cell, rounded at its apex, 

 and three submarginal cells ; the first about equal in length to 

 the two following, the second narrowed towards the marginal, 

 receiving the first recurrent nervure in the middle, the third also 

 much narrowed towards the marginal, receiving the second re- 

 current nervure near its apex ; spurs of the posterior tibiae sim- 

 ple. Abdomen elongate-ovate, having an anal fimbria on the 

 fifth segment ; the sixth pubescent at the sides, naked down 

 the centre. (Plate I. Details.) 



