H HYMENOPTERA, 



with sooty blnck jxiljcscence, |)alcst on the sides and beneath ; 

 the lefjs dark fusco-l'i'rnifrinous, above clothed witli dark fnseous 

 pubcseeiire ; tlie floeciis on tlie ])()steri()r femora hmfr, thiek and 

 of a pale yellow ; the friiij;e on the tibia' jjale ; the tibiiu much 

 dilated, sli<:htly bent inwardly ; the basal joint of tlie tarsi broadly 

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

 sanu- leiiiTth and sha])e, the fourth very small; claws short, stout 

 an<l somewhat blunt ; anterior wind's having one marginal cell, 

 the radial nervure of w hich cur\ es inwardly to the point of union 

 w ith the transverse nervure of the second subraarginal cell, from 

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

 marginal, whence it ])asses obli(juely n])wards 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. 

 Hnb. 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 ; antenna 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 paraglossa;, 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 neai- its aj)ex ; 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.) 



