Monographie der Bienengattung Centris (s. lat.). ^05 



on each side of the front edge of the clypeus, which has a few coarse punctures, but is 

 smooth in the middle; the mandibles are black, with a large Upper tooth and a slight 

 pale discoloration on the inner tooth. Antennae black and a little paler, being dark 

 brown on the under side. 



»Thorax black, with dense velvety hairs, becoming fulvous beneath and at the 

 end opposite the base of the abdomen, though not apparent wheen seen from above. 

 Anterior feet stout, black, with dark brown hairs, fringed with spare hairs; on posterior 

 tibiae a dense brush of long fringed spinulated pale fulvous hairs, the brush being one- 

 half as Wide as long, beginning on the tibiae and leaving the 4 terminal reddish tarsal 

 joints exposed; basal joints of tarsus lined with dense reddish spines, which are much 

 larger on the edges. Abdomen smooth, shining rust-red, conical, duller colored beneath; 

 the 6. Segment edged with a long dense stiff fringe; tip naked, triangulär, acute, slightly 

 depressed along the middle, wüth a raised equilaterally triangulär portion at the base. 

 Long, ogo inch. (= 23 mm.). 



»Route along the Napo and Maranon rivers; Quito. America mer. 



»It may be known by its four-spotted face, the large fulvous brush of spinulated 

 hairs on the bind legs, and the reddish smooth abdomen.« 



Ist wohl das $ von personata\ 



loi. Centris rubella Sm. 



1854. Centris rubella Smith, §, Catal. Hymen. Brit. Mus., II, pag. 372. 

 1874. Centris rubella Smith, Ann. and Mag. Nat. Hist. (4), XIII, pag. 36o. 

 1898. Centris varians Mocsary i. 1. 



»5. Head and thorax black; face has a little white pubescence on each side, a tuft 

 between the ocelli and the cheeks densely clothed with white; the labrum has a bright 

 golden pubescence, the clypeus has a large testaceous spot on each side and the man- 

 dibles a similar spot near their apex. Thorax: the disk covered with very short black 

 pubescence, a little pale pubescence on each side of the collar, a tuft behind the wings; 

 the metathorax has laterally a little fuscous pubescence. Legs rufo-testaceous, the an- 

 terior and intermediate pairs fuscous above, their tarsi densely clothed with rufous pu- 

 bescence; the scopa on the posterior legs bright fulvo-ochraceous above, beneath having 

 a ferruginous stain. Wings dark fuscous, with a purple iridescence. Abdomen ferru- 

 ginous. Long. 8 lines (= 17 mm.) 



»Brasil (Rio Tapajos, Archidona, Napo). 



»Specimens from the latter localities (Napo) have the clypeus yellow anteriorly 

 as well as the labrum.« 



Centris rubella ist leicht an der gelben Behaarung der oberen Thoraxränder zu 

 erkennen, ähnelt sonst der per Sonata, ist aber kleiner, hat ein dunkleres, oft ganz 

 schwarzes Gesicht. 18 — ig Mm. lang. 



d". Dem Weibchen ähnlich und besonders die gelbe Randbehaarung des Thorax 

 noch auffallender; Clypeus und Labrum ganz gelb, Fühler ganz schwarz. Hinterbeine 

 verdickt, besonders die Schenkel, aber ohne die Zähne der personata, sonst sind beide 

 hinteren Beinpaare schwarz behaart, Vorderbeine mehr gelbbraun. 16 — 17 Mm. lang. 



Ich verdanke Mocsary (Mus. Budapest) die Ansicht zweier Pärchen von Espi- 

 rito Santo, ferner liegen mir noch 2 cf $ von ebendaher vor. Von Para (Duke) erhielt 

 ich I 5, das an Solanum grandißorum gefangen wurde. 



