O HYMENOPTERA. 



a slight cloud on their apical margins. The abdomen very shining, 

 and delicately punctured; the base has a thin long pale pu- 

 bescence -, on the apical margins of the first and two following 

 segments laterally is a narrow fringe of white pubescence ; on 

 the margin of the fourth segment it is usually continuous be- 

 neath ; the margins have a fringe of white pubescence. 



Male. Length 5 lines. Closely resembles the female, but 

 has the face densely clothed with long bright fulvous pubescence ; 

 the apical margins of the segments of the, abdomen have con- 

 tinuous white bands, usually more or less interrupted on the first 

 and second. 

 Hob. St. John's Bluff, East Florida. (Coll. E. Doubleday, Esq.) 



Genus 2. PARACOLLETES. 



Paracolletes, F. Smith's MSS. 



Head not so wide as the thorax, eyes lateral, elongate-ovate ; 

 the stemmata placed in a curve on the front of the vertex ; an- 

 tennae subclavate, the third joint longer than the second or fourth ; 

 labrum concealed, rounded in front ; mentum elongate, gradually 

 narrowing towards its base, which is conical, in front produced 

 into a sharp angle, from the point of which descends an abbrevi- 

 ated channel ; anteriorly rounded ; the paraglossae obtuse, short, 

 and placed laterally ; labial palpi four-jointed, the basal joint as 

 long as the two following united ; third and fourth joints of equal 

 length. Maxillary palpi six-jointed, the basal joint a little the 

 longest, the rest of about equal length, each joint much narrower 

 than the preceding, all being conical. Thorax, superior wings 

 having one oblong marginal cell, truncate at the apex, from 

 which emanates an abbreviated nervure ; three submarginal cells, 

 the first as long as the two following united ; the second a little 

 longer than broad, the transverse nervures parallel, oblique -, the 

 third narrowed nearly one-half towards the marginal ; the first 

 recurrent nervure received by the second submarginal cell about 

 the middle, the second received by the third submarginal near 

 its apex. Legs short, stout, posterior tibiae slightly curved, and 

 the basal joint of the tarsi as broad as the tibia, and three-fourths 

 of its length. Abdomen elongate-ovate, furnished with an anal 

 fimbria. (Plate I. Details.) 



1. PARACOLLETES CRASSIPES, n. s. B.M. 



Female. Length 7 lines. Black, the head clothed with 

 ochraceous pubescence, palest on the face and cheeks ; the basal 

 joint of the antennae black, the following joints ferruginous be- 

 neath ; the clypeus coarsely punctured ; the labrum and apex of 



