HYMENOPTERA. 173 
ceous; beneath, the segments narrowly rufo-testaceous at their 
apical margins. 
Hab. Brazil (Para and Santarem). (H.W. Bates.) 
2. NorocyPHUS TYRANNICUS. 
Female. Length 11-12 lines.—Black: agreeing in form in 
every particular with N. sevissimus ; the labrum elongated and 
narrowed anteriorly, its apex truncate. Thorax smooth and im- 
punctate; the metathorax truncated, having the verge of the 
truncation emarginate ; wings dark fuscous, with a violet irides- 
cence. Abdomen smooth, slightly shining, its apex acuminate. 
The entire insect has a covering of obscure pile, which has a 
slight purple tinge on the metathorax; on the abdomen it is 
obscure blue. 
Hab. Brazil. 
3. NorocyPHUS RIXOSUS. 
Female. Length 73 lmes.—Black : of the same form as the 
two preceding species ; the labrum produced, narrowed towards 
its apex, which is emarginate; wings dark fuscous; the legs 
without spines; the metathorax truncate, the truncation slightly 
concave, its verge emarginate. Abdomen: the second segment 
has on each side a large cream-coloured spot, the spots nearly 
meeting on the disk of the segment; the two apical segments 
white above. 
Hab. Brazil. 
Genus 7. PLANICEPS. 
Pompilus, pt., Latr. Gen. Cr. et Ins. iv. 66. 
Planiceps, Latr. Dict. Class. d’ Hist. Nat. (1822). 
1. PLANiIcEPS LATREILLII. 
Pompilus planiceps, Latr. Gen. Cr. et Ins. iv. 66. 
Planiceps Latreillu, Van d. Lind. Obs. i. 354. 
Dahlb. Hym. Europ. i. 36, 
St. Farg. Hym. in. 391. 1. 
Hab. France. 
2. PLANICEPS VARIPENNIS. B.M. 
Planiceps varipennis, Perty, Del. An. Art. p. 143. t. 26. f. 9. 
Spin. Gay’s Chili, vi. 371. 1; Atlas, t.4.f.43 9. 
Hab. Brazil (Rio Tapajos); Chili (Coquimbo). 
