366 hymenoptera. 



1. Tetrapedia diversipes. B.M. 

 Tetrapedia diversipes, Klug, Berl. Mag. iv. 35. t. 1. f. 2. 



Hab. Brazil. 



2. Tetrapedia bicolor. 



Female. Length 3 lines. — Head and thorax black, the ante- 

 rior margin of the clypeus, the labrum and mandibles, the cheeks 

 and antennae ferruginous, the former obscurely so. Thorax : the 

 wings testaceo-hyaline, the nervm-es pale testaceous, becoming 

 darker towards the base of the wings ; the legs dark rufo-piceous, 

 the posterior pair densely clothed with black pubescence. Ab- 

 domen ferruginous, the apex having a thin black pubescence. 



Hab. Brazil. (Coll. F. Smith.) 



3. Tetrapedia atripes. 



Female. Length 5 lines. — Black, the flagellum piceous be- 

 neath ; the mandibles have a testaceous spot near their apex ; the 

 thorax finely punctured, and thinly clothed with short black 

 pubescence ; the metathorax rounded, shining, and finely punc- 

 tured ; the legs have a black pubescence, the posterior tiljiae and 

 tarsi densely clothed with long black pubescence. 



Hab. Mexicii'. (Coll. F. Smith.) 



4. Tetrapedia testacea. 



Female. Length 3 lines. — Testaceous, the labrum and man- 

 dibles pale yellow testaceous; the antennae pale beneath. Thorax : 

 two longitudinal pale yellow lines on the disk, an epaulet over 

 the tegulae yellow, the scutellum paler than the disk ; wings 

 subhyaline, the nervures testaceous ; the legs pale testaceous ; 

 the posterior legs densely clothed with golden-yellow pubescence. 



Hab. Brazil (Para). (Coll. F. Smith.) 



5. Tetrapedia nasuta. 



Male. Length 3 lines. — Head and thorax black, the clypeus 

 anteriorly, the labrum, mandibles, and scape in front, yellowish- 

 white, the flagellum rufo-testaceous beneath, the inner orbits of 

 the eyes white. Thorax : the disk has two obscure pale lines ; 

 the wngs testaceo-hyaline, the nervures pale testaceous ; the 

 thorax beneath testaceous, the legs testaceous ; the intermediate 

 and posterior tibiae darkest, clothed with black pubescence. 

 Abdomen fulvo-testaceous, the margins of the segments darkest. 



Hab. Brazil. (Coll. F. Smith.) 



