HYMENOPTEROUS FAMILY STEPHANID^. 769 



cribrate punctate, with a distinct crennlate sulcus on each side. 

 Petiole very finely and indistinctly trans-stviate, as long as the 

 remaining segments ; second segment basally striate, rest smooth 

 and shining, with a few dull spots due to microscopic sculpture. 

 Terebra half as long again as body, sheaths white-banded before 

 apex. Hind legs with coxpe finely striated between coarse 

 rugosities, distinctly transrugose beneath ; femora polished 

 smooth, bidentate ; tibite compressed to beyond middle. 



Black ; head, mandibles basally, and scape ferruginous. Wings 

 hyaline. 



Length 12 mm. ; terebra 18 mm. 



Habitat : Massanary, on the Amazon, Brazil. Type in collec- 

 tion of Herr Wiistnei, after whom it is named. 



Schletterer states that this species is deceptively like H. limpidi- 

 pennis, but the sculpture of face is different, petiole and terebra 

 longer, the former less distinctly sculptured and the median 

 segment more densely punctate. From JI. marginalis it may be 

 distinguished by smaller size, shorter basal flagellar joints, shorter 

 petiole, and shorter terebra. 



Szepligetti, p. 533, states briefly of this species : — S . Tarsi 

 4-jointed ; metatarsus brown. $. Length 14 mm.; terebra 

 18 mm. Habitat: Fonteboa, on the Amazon, Brazil. 



This eiTor as to the S S having 4-jointed hind tarsi is 

 repeated by him in other cases ; they are always 5-jointed. 



9. LIMPIDIPENNIS Schlett, 



Stephamis limpidipennis Schlett., p. 147, $ . 



5 . Frons rather coarsely and subarcuately rugose ; vertex 

 transrugose ; occiput more coarsely punctato-rugose. Temples 

 with a few punctures near eyes. Posterior margin of head pro- 

 duced into a long translucent collar. Cheeks decidedly shorter 

 than scape. Basal flagellar joints normal. Neck of prothorax 

 with two coarse transverse folds, between which it is deeply 

 impressed and shining, behind them lightly punctato-rugose ; 

 semiannular rather densely, partly confluently punctate. Scutellum 

 entirely smooth with a few marginal punctures. Mesonotum 

 laterally rather coarsely and densely rugoso-punctate. Meso- 

 pleurae smooth above, dull beneath, with large difiuse punctures; 

 metapleurae in front lightly and indistinctly, behind coarsely and 

 deeply reticulate rugose, not separated from the median segment. 

 Median segment shining smooth, with large diflfuse punctures, 

 centrally closer, marginal sulci distinct. Petiole trans-striate, 

 basally irregularly rugose, distinctly shorter than remainder of 

 abdomen, which is basally finely rugose, otherwise smooth with a 

 few dull spots due to microscopic sculpture. Terebra evidently 

 longer than body, white-banded before apex. Hind legs with 

 ooxfe finely trans-striate between very coarse rugosities ; femora 

 smooth, bidentate ; tibias compressed to beyond middle. 



