38 HYMENOPTERA. 



of the segments more or less nigro-piceous ; beneath, the mar- 

 gins of the segments fringed with pale hairs. 

 Hob. Sydney. (Coll. F. Smith.) 



16. SPHECODES DICHROA. B.M. 



Sphecodes dichroa, Harris's Catalogue. 



Female. Length 4^ lines. Head and thorax black, strongly 

 punctured; on the disk of the thorax,, which is shining, the 

 punctures are more distant, as also on the clypeus ; tegulae 

 rufo-piceous, the nervures dark ferruginous ; wings hyaline, ha- 

 ving a fuscous cloud at their apex ; the metathorax truncate, 

 the enclosed space below the post-scutellum rugged, as well as 

 the sides beyond, the truncation not so coarsely rugose. Ab- 

 domen entirely red, strongly punctured, the margins of the seg- 

 ments depressed, apical segment rufo- testaceous ; beneath more 

 strongly but not so closely punctured. 



Male. Closely resembling the female, but more coarsely sculp- 

 tured and more pubescent ; the antennae submoniliform ; the 

 margins of the abdominal segments very smooth and shining. 

 Hab. United States. (E. Doubleday, Esq.) 



Genus 13. TEMNOSOMA. 

 F. Smith's MSS. (Details, Plate II.) 



Head subquadrate, as wide as the thorax, stemmata placed in 

 a triangle on the vertex, the posterior pair on a line with the 

 vertex of the eyes ; eyes lateral, elongate-ovate ; antennae fili- 

 form. Mentum elongate, labium short, narrow and acuminate, 

 paraglossae broader than the labium, a little shorter, and pointed 

 at their apex; labial palpi four-jointed. Maxillary palpi six- 

 jointed, the apical lobe short and rounded, the palpi twice the 

 length of the lobe ; the joints about equal in length. Thorax 

 ovate, rounded posteriorly, anterior wings having one marginal 

 and three submarginal cells ; the marginal cell equal in length 

 to the three submarginals, wide at the base and gradually nar- 

 rowing towards the apex ; the first submarginal cell longer than 

 the second and third, the second very narrow, the transverse 

 nervures in the males nearly coalescing, the third narrowed 

 towards the marginal. 



1. TEMNOSOMA METALLICUM, n. s. B.M. 



Female. Length 3 lines. Metallic green, head strongly punc- 

 tured ; antennae labrum and mandibles black, the latter ferru- 

 ginous at their apex ; the clypeus prominent. Thorax strongly 



