I 



Monographie der Bienengattung Centris (s. lat.). 335 



171, Centris morsei CockW. 



1897. Centris morsei Cockerell, cf, Proc. Ac. Natural scienc. Philadelphia, pag. 355. 



»cf. Length 21 mm., stoutly built, Black, with pale ochraceous pubescence, very 

 dense on thorax. Clypeus bright lemon-yellow, with anterior margin rufous; labrum 

 yellow; mandibles dark rufous with black tips; scape without any yellow; eyes sage- 

 green, suffused with crimson at the extreme base; facial quadrangle longer than broad, 

 but of the broad type; wings dusky hyaline; tegulae cream-color; first abdominal Seg- 

 ment with abundant pale pubescence; remaining dorsal segments uniformlv and com- 

 pletely delicately pruinose-pubescent, producing a grayish appearance; apical margins 

 of Segments colorless or rather whitish-hyaline, extreme base of third segment, and of 

 second segment at sides ferruginous, this ferruginous portion being overlapped by the 

 white margin of the segment before. Venter with dense vellowish- white hairs; apex 

 with pale shining hairs, genitalia ferruginous. 



»Compared with the cT of C. caesalpiniae, which it most resembles, C. ynorsei is 

 considerably larger, the thoracic pubescence inclines more to mouse color, and the 

 pruinose-pubescent abdomen with its two more or less defined reddish bands is verv 

 diflerent. In morsei the bind tarsi have a black brush on the in nerside, but the abun- 

 dant long pubescence is all ochraceous, not at all fuscous or blackish. The long hairs of 

 the anterior tarsi are blackish, though shining, and appearing golden in certain lights. 



»Mesilla, New Mexico, bed of the Rio grande, June 28, 1897. Taken by Mr. A. P, 

 Morse.« 



Centris morsei verdanke ich dem Autor in zwei typischen Exemplaren von Mesilla 

 (20. und 27. Juni 1897 bei den »Sandhills«); im Mus. Paris i cf von Texas. 



Anhang. 



172. Centris armata F. 



1793. Apis armata Fabricius, Ent. Syst., II, pag. 326, n. 56. 

 1804. Centris armata Fabricius, Syst. Piez., pag. 356, n. 8. 



»Atra, abdomine viridi aeneo, tibiis posticis hirsutissimis, thorace utrinque bi- 

 spinoso. Long.? 



»Surinam (America mer.).« 



173. Centris barbara F. 



1793. Apis barbara Fabricius, Ent. Syst., II, pag. 33o, n. 71. 



1804. Apis barbara Cocquebert, Illustr. iconogr. Insect., III, pag. 97, T. 22, Fig. 5. 



1804. Centris barbara Fabricius, Syst. Piez., pag. 357, n. 10. 



»Villosa nigra, ano fusco, tibiis posticis rufo hirsutissimis. Long."^ 



»Barbaria (?).« 



1 74. Centris giilosa F. 



1775. Andrena gulosa Fabricius, Svst. entom., pag. 377, n. 10. 



1781. Andrena gulosa Fabricius, Spec. Insect., I, pag. 474, n. 14. 



1787. Andrena gulosa Fabricius, Mant. Insect., I, pag. 29g, n. 16. 



1789. Andrena gulosa Olivier, Encycl. method. Insect., IV, pag. i37, n. 21. 



