120 I\[r. T. D. A. Cockerell — Descriptions and 



abdnniiiial segments 2 to 4 strongly washed with orange, 

 wliich extends some distance along the bands on 3 and 4 ; 

 fifth segment with dark fuscous hair in middle and orange at 

 sides ; f]agellam obscure reddish beneath ; mandibles chestnut- 

 red in middle ; cljpeus prominent, bare, highly polished, with 

 sparse distinct punctures ; front and sides of face witli white 

 liair, but vertex with black ; face broad ; tegulse rufo-piceous. 

 Wings reddish. Hair of upper part of thorax greyish white, 

 but a fuscous band across mesothorax and another across 

 scutelliim ; L^wer half of mesopleura with dark chocolate 

 liair ; mesothorax highly polished, with sparse punctures. 

 Legs dark reddish, their hair black ; hind spurs curved at 

 end. 



Very close to P. tricolor (Friese), but much smaller, with 

 narrower abdomen, more sparsely punctured disk of meso- 

 thorax, and smoother, more polished basal area of metathorax. 



(^ . — AntenufB iiardl}' reddened beneath ; face and lower 

 part of cheeks with white hair, but the black hair of vertex 

 also invades upper part of front ; clyj^eus finely and rather 

 closely punctured ; thorax above with black hair, the margins 

 of the mesothorax (broadly in front) with greyish white; 

 pleura with black hair, but a tuft of greyish white just below 

 tegulse ; thorax posteriorly with black hair ; small joints of 

 tarsi red; abdomen with black hair; a cnneiform orange 

 patch at each side of tliird and fourth segments, a little of the 

 same at sides of fifth ; greyish-white hair at sides of first and 

 second, and disks of these segments with very thin greyish- 

 white hair, but hair on base of first segment black. 



Carcarana, Argentina {L. Briiner). U.S. Nat. Museum. 



Tiie female (81) is the type ; the male (56) seems to be 

 correctly associated, but it differs much in appearance and 

 may possibly belong to a different species. 



Diadasia separata (Holmberg). 



Carcarana, Argentina (Bruner, male 42, female 68). 



This is Tdeutemneata separata, Holmberg. Holmbero" 

 described only the female ; the male is similar, but the fla- 

 gellum is only faintly reddish beneath, and there is no red 

 hair at end of abdomen. The hind basitarsi are slender and 

 curved. 



Ceratina nautlana, Cockerell. 



Vera Cruz, Mexico, Dec. 14, 1907 {F. Knah). 

 The wings are browner than usual. 



