Records of Beea> 475 



Centris maroniana, sp. n. 



c? . — Length about 28 ram., anterior wings 22*5 mm. 



Robust, black, including the legs, but anterior trochanters 

 and tibiae suffused with chestnut*red. Eyes very large, con- 

 verging above ; ocelli large, practically contiguous, and 

 lateral ones distant from eyes less than half diameter of one ; 

 sides of face, supraclypeal area and upper part of clypeus 

 ferruginous ; the rest of clypeus and the labrum chrome- 

 yellow ; scape short and stout, dark reddish, yellow in front; 

 mandililes elbowed near apex ; liair ot head clear ferru- 

 ginous ; disc of mesothorax and mammiform elevations of 

 scutellum shining; thorax densely covered with velvety- 

 hair, black, witii a faint rusty tint dorsally, except ante- 

 riorly, where it is rich deep red, the red gradually fading 

 into the black ; pleura with dark reddish hair ; anterior legs 

 with red hair, black on basitan^i; middle and hind legs with 

 long pure black hair; teguhe ferruginous. Wings dark 

 fuliginous, brilliantly purple, with some shades of green. 

 Abdomen with short velvety hair, which is black except a 

 broad yellowish-white (olivaceous-tinted) band, occupying 

 second segment except base and third except extreme apex. 



" Guyane, Maroni " (Queensland Museum ; received from 

 Le Moult). 



Related to C smithiann, Friese (which I have from 

 r. Smith's collection), but larger, with the hair of the 

 thorax dorsally black except in front. PVom the character 

 of the ocelli, it possibly flies in the evening or at night. 

 The bee-fauna of Maroni, as shown by the same collecticm, 

 includes the following : — Acanthopus splenJidus, Fab., Aylae 

 CfBvulea, Lep., Excerete frontalis, Guer., Oxcua festiva, Sm., 

 Xylocopa barbata. Fab., Bombus incarum, Frankl., Centris 

 obsoleta^ Lep., C americana. King, Epicharis cornea, Sm., 

 E. schroitkyi, Friese, E. affiais, Sm., Ceratina heta. Spin., 

 KulcBiiia dimidiata, L., E.fasciata, Lep., E.mocsaryi, Friese, 

 E. smaraydina mexicana, Mocs., Euglossa brullei, Lep,, 

 Eufriesia pulchra, Sm., &c. 



Pachymelus mediocinctus, sp, n. 



^, — Length 18 mm., length of anterior wing 11 mm. 



Black, with tarsi dark red ; eyes large, slightly converging 

 above ; clypeus prominent, but flattened on disc, yellow, 

 with upper and lateral margins and two conspicuous spots 

 black ; labrum large, emarginate at apex, yellow, with 

 lateral and inferior margins narrowly black ; mandibles 



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