3o8 H. Friese. 



ferruginous within, the joints are also ferruginous, mandibles with a yellow spot near 

 their apex; wings dark fuscous, with a purple iridescence. Abdomen shining; the basal 

 Segment naked, the other segments have a thin sericeous hoary pile, which is obser- 

 vable in certain lights; the apical margin of the 3. segment ferruginous, the fascia is 

 widest in the middle and at the sides of the abdomen, 4. and follovving segments enti- 

 rely ferruginous, beneath ferruginous, with more or less of fuscous spots or bands at 

 the basal margins of the segments. Long.? 



»Mexico (Orizaba).« 



Centris ignita gehört zu agilis, kommt auch mit ganz feuerrothem Abdomen vor! 



107. Centris montc{inna Cress. 



187g. Centris Monte\uma Cresson, cT $, Trans. Amer. Entom. Soc, VII, pag. 21 3. 



»9. Black; head and thorax with short, dense ochraceous pubescence, paler on 

 cheeks and thorax beneath, that on head, thorax above and on sides tipped with black; 

 clypeus concave, a prominence on each side at base, the apical margin slightly recurved, 

 Sharp and truncate; sides of face narrowly, an interrupted band on clypeus, labrum 

 except base, and mandibles except tips, yellow; flagellum testaceous beneath; wings 

 dark fuscous, paler on apical margins; legs with pale pubescence, that on the four 

 posterior tibiae and tarsi fulvous, long and dense on posterior pair, that on base of 

 intermediate tarsi short fuscous and fringed behind with fulvous; abdomen fulvous, 

 shining, hrst segment stained at base with brown, and thinly clothed with a pale pube- 

 scence more or less tipped with black, that on apical segments fulvous. Long. 80 inch. 

 (= 20^/2 mm.). 



»cf. The yellow band on clypeus broad and entire; posterior femora very much 

 swollen, their tibiae rather more robust than in 9 and fringed behind with fulvous 

 pubescence, as is also the basal Joint of their tarsi; abdomen narrower and more convex 

 and more thickly pubescent at base and apex. Long. 70 inch. (= 18 mm.). 



»Mexico (Sumichrast), c? 9.« 



108. Centris flavilabris Mocs. 



i8gg. Centris flavilabris Mocsary, 9, Termesz. Füz., XXII, pag. 253 (sec. spec. typ.). 

 i8gg. Centris flavilabris var. boliviensis Mocsary, 9, Termesz. Füz., XXII, pag. 253 

 (sec. spec. typ.). 



»?. Mediocris, sat robusta, nigra; clypeo planato, sparsim punctato, medio laevi, 

 parte infera cum orbitis oculorum internis subtus labroque rufo-piloso flavis, mandi- 

 bulis nigris, apice rufis, temporibus subtus albo-villosis; thorace dense nigro-velutino, 

 pectore tarsisque anticis albo-pilosis; abdomine nigro-castaneo vel castaneo, segmento 

 primo dorsali subnitido, reliquis dense punctulatis nigroque pubescentibus, 5 — 6 ven- 

 tralibusque rufo-fimbriatis; pedibus nigris, nigro-hirtis, posticorum tibiis metatarsisque 

 fulvo-hirsutissimis, tarsorum articulis reliquis rufis; alis nigro-violaceis, tegulis nigris. 

 Long. 22 mm. 



»Species: de dimidia parte infera clypei labroque flavis, Jani facile cognoscitur. 



»Peru (Cumbara) et Brasilia (Tonantins). 



»Var. boliviensis. Typo simillima: differt solum clypeo labroque nigris, tempo- 

 ribus subtus tarsisque anticis rufo-villosis. 



»Bolivia (Songo et S. Antonio), 4 9.« 



