3o2 H. Friese. 



bilität dieser Art feststellen konnte; durch das plattgedrückte Abdomen und die fast 

 bindenartige Segmentbehaarung bei der fusciventris bildet diese Art einen Uebergang 

 zum Genus Exomalopsis ; i 9 von saussurei stammt von Guatemala. 



Anhang. 



41. Tetrapedia atripes Sm. 



1854. Tetrapedia atripes Smith, 9, Catal. Hymen. Brit. Mus., II, pag. 366, Nr. 3. 



»9. Black, the flagellum piceous beneath; the mandibles have a testaceous spot 

 near their apex; the thorax finely punctured and thinly clothed with short black pubes- 

 cence; the metathorax rounded, shining and finely punctured; the legs have a black 

 pubescence, the posterior tibiae and tarsi densely clothed with a long black pubescence. 

 Long. 5 lines {== 10V2 Mm. lang). 



»Mexico.« 



Man vergleiche maesta Cress. §, die vielleicht hierher gehört! 



42. Tetrapedia basalis Sm. 



187g. Tetrapedia basalis Smith, §, Descr. New Spec. Hymen., pag. 12g, Nr. 4. 



»9. Length 4^/2 lines. Black; the abdomen very smooth and shining. A little 

 white pubescence on the sides of the face and also at the Insertion of the antennae; the 

 clypeus with a few distant punctures, its anterior margin slightly emarginate; the tips 

 of the mandibles pale testaceous; the flagellum of the antennae, except the three basal 

 joints, obscurely fulvous beneath. The mesothorax shining and punctured; the wings, 

 from the base to the Stigma, dark brown, the apical portion milky white; the legs with 

 black pubescence, that on the posterior tibiae and first Joint of the tarsi very dense and 

 long. Abdomen pubescent at the apex; beneath, the third and fourth segments with 

 pale fulvous pubescence, that on the apical segments black (g^a M"^- ^^"g)- 



»Brazil, Fontiboa.« 



43. Tetrapedia fervida Sm. 



187g. Tetrapedia fervida Smith, cf, Descr. New Spec. Hymen., pag. 128, Nr. 2. 



»cT. Length 4 lines. Black, with the legs and base of the abdomen obscurely 

 ferruginous. The anterior margin of the clypeus, and oblong spot on the sides of the 

 face below the antennae, the clypeus, and mandibles, white; the antennae dark ferru- 

 ginous; the flagellum beneath, except the basal Joint, fulvous; the head and abdomen 

 shining, the thorax opaque above; the wings fusco-hyaline, the stigma pale rufo-testa- 

 ceous; the legs with black pubescence; the calcaria, which arm the apex of the tibiae, 

 white. Abdomen very smooth and shining; beneath, the third segment in the middle 

 is covered by a semicircular kind of päd; the fourth segment has at its basal margin a 

 narrow fringe of white pubescence, and has also, laterally, a floccus of pale pubescence, 

 which curls inwardly; the following segment is yellow in the middle (=8^/2 Mm. 

 lang). 



»Brazil, Constancia.« 



