Leafcutter and Mason Bees: a Biological Catalogue of the Genus Megachile of the Neotropics Anthony Raw



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Subgenus Cressoniella Mitchell


Megachile subgenus Cressoniella Mitchell 1934: 302 & 307. Type species: Megachile zapoteca Cresson. Original designation.

Megachile subgenus Cressoniella Mitchell 1935: 42.

Cressoniella subgenus Cressoniella Mitchell 1980: 5, 63.

All 20 species included in the subgenus are neotropical, one of which reaches southwestern U.S.A. Some of the Andean species occur at high altitudes.




  1. Megachile (Cressoniella) antisanellae Cameron

Megachile antisanellae Cameron 1903: 232-233. Male. Type locality: Antisanella [Ecuador] (11000 ft). Type repository: NHML 17a2454. Examined.

Megachile (Cressoniella) antisanellae Raw 2002 #7: 13.

DISTRIBUTION. ECUADOR.




  1. Megachile (Cressoniella) arcus Mitchell

Megachile (Cressoniella) arcus Mitchell 1930: 286. Male. Type locality: Santa Marta, Colombia, 9 January 1923 (M. A. Carriker). Type repository: NHML 17a2410. Examined.

Megachile (Cressoniella) arcus Mitchell 1934: 302.

DISTRIBUTION. COLOMBIA: Magdalena- Mount San Lorenzo (7000 ft), Santa Marta.




  1. Megachile (Cressoniella) atramentata Cockerell

Megachile atramentata Cockerell 1917b: 238-239. Female. Type locality: Baia Blanca, Argentina (L. Bruner). Type repository: USNM 22905. Examined.

Megachile (Cressoniella) atramentata Raw 2002 #7: 13.

DISTRIBUTION. ARGENTINA.




  1. Megachile (Cressoniella) bidens Friese

Megachile (Cressoniella) bidens. New name. Friese 1911.

Megachile bidentata Smith 1853: 190-191. Male. Type locality: Mexico. Type repository: NHML 17a2416. Examined.

(Not M. (Pseudocentron) bidentata (Fabricius).)

Dalla Torre (1896: 422) listed the species of both Fabricius and Smith but gave no new name.

(Not Megachile (Ptilosarus) bidentis Cockerell 1896: 288-289.)



Megachile bidens Friese 1911: 256 [new name].

Megachile (Cressoniella) bidentata Smith in Ayala et al 1997: 455.

Megachile (Cressoniella) bidens Raw 2002 #7: 13.

DISTRIBUTION. MEXICO.




  1. Megachile (Cressoniella) bisinua Vachal

Megachile bisinua Vachal 1908: 233-234. Female. Type locality: Balzapampa, Ecuador. Type repository: MNHN. Examined. Type missing flagellum of right antenna, left antenna glued to label, right mandible glued to specimen.

Megachile (Cressoniella) bisinua Raw 2002 #7: 13.

DISTRIBUTION. ECUADOR.




  1. Megachile (Cressoniella) boliviensis Friese

Megachile boliviensis Friese 1916: 340. Male. Type locality: ? Guayaquil, Bolivia/ Ecuador (Alpengebeit) / San José (Schmidt) [Costa Rica]. Type repository: NHMW 211.

Megachile (Cressoniella) boliviensis Mitchell 1934: 302.

ADDITIONAL REFERENCES. Friese 1921: 92 (D, R-F). Mitchell 1930: 285 (D).

DISTRIBUTION. BOLIVIA./ COSTA RICA: San José, San Mateo.


  1. Megachile (Cressoniella) compta Vachal

Megachile compta Vachal 1908: 233. Female. Type locality: Buenos Aires, Argentina. Type repository: MNHN. Examined.

Megachile (Cressoniella) compta Raw 2002 #7: 13.

DISTRIBUTION. ARGENTINA: BA.




  1. Megachile (Cressoniella) ecuadoria Friese

Megachile ecuadoria Friese 1904: 187. Female and male. Type locality: Ona, Ecuador (2000 m)/ Peru/ Bolivia/ Arica, northern Chile. Type repository: ?

Megachile (Cressoniella) ecuadoria Raw 2002 #7: 13.

ADDITIONAL REFERENCE. Mitchell 1930: 287 (D, M).

DISTRIBUTION. BOLIVIA. CHILE: Arica. ECUADOR: Ona (2000 m). PERU: Matucana (7300 ft).


  1. Megachile (Cressoniella) enceliae Cockerell

Megachile enceliae Cockerell 1926a: 216. Female. Type locality: Tingo [Maria], Peru, 16-22 August 1925 at Encelia canescens (Cockerell). Type repository: AMNH. Examined.

Megachile (Cressoniella) euceliae Mitchell 1943b: 662 [misspelling].

DISTRIBUTION. PERU.




  1. Megachile (Cressoniella) flammiventris Vachal

Megachile flammiventris Vachal 1908: 225. Female. Type locality: Arica, Chile. Type repository: Vachal collection, MNHN.

Megachile (Cressoniella) flammiventris Raw 2002 #7: 13.

ADDITIONAL REFERENCE. Cockerell 1926a: 216 (D).

DISTRIBUTION. CHILE: Arica. PERU: Tingo.

FLOWERS. Encelia canescens.




  1. Megachile (Cressoniella) fortuita Mitchell

Megachile fortuita Mitchell 1930: 287-288. Female. Type locality: Peru, 19 December 1875. Type repository: MCZ 16206. Examined.

Megachile (Cressoniella) fortuita Raw 2002 #7: 13.

DISTRIBUTION. PERU.




  1. Megachile (Cressoniella) fruticosa Mitchell

Megachile fruticosa Mitchell 1930: 290. Female. Type locality: Colombia (?) (G. F. Baker). Type repository: USNM 43093. Examined.

Megachile (Cressoniella) fruticosa Raw 2002 #7: 13.

DISTRIBUTION. COLOMBIA.




  1. Megachile (Cressoniella) grandibarbis Pérez

Megachile grandibarbis Pérez 1899: 107-108. Male. Type locality: Chile. Type repository: MNHN.

Megachile rufohirta Friese 1904: 185-186. Sex ? Type locality: Arica, northern Chile (Standinger). Type repository: ? Synonymy of Vachal 1909: 7; Cockerell 1926b: 518 (D).

Megachile (Cressoniella) grandibarbis Mitchell 1943b: 662.

ADDITIONAL REFERENCES. Cockerell 1926a: 218 (D, R-F); Claude- Joseph 1926: 256-257 (D, N as M. rufohirta).

DISTRIBUTION. CHILE: Arica, Arequipa, Temuco. PERU: Yura.

FLOWERS. Oenothera, Godetia, Marrubium vulgare and Solanum.

NESTING. Nests in old beetle burrows in dead branches and in the soil. There are about four contiguous cells per nest. Cuts leaves of [Noto]fagus dombeyi and [N.] obliqua.


  1. Megachile (Cressoniella) guachalensis Cameron

Megachile guachalensis Cameron 1903: 233. Female. Type locality: Hacienda Guachala (9217 ft) [Ecuador]. Type repository: NHML 17a2455. Examined.

Megachile (Cressoniella) guachalensis Raw 2002 #7: 13.

DISTRIBUTION. ECUADOR.




  1. Megachile (Cressoniella) latula Vachal

Megachile latula Vachal 1908: 224. Female. Type locality: Mapirí, Bolivia. Type repository: MNHN. Examined.

Megachile (Cressoniella) latula Raw 2002 #7: 14.

DISTRIBUTION. BOLIVIA.




  1. Megachile (Cressoniella) minor Vachal

Megachile minor Vachal 1908: 236. Female. Type locality: Mapirí, Bolivia. Type repository: MNHN. Examined. Type labelled “veterna var. minor”.

Megachile (Cressoniella) minor Raw 2002 #7: 14.

DISTRIBUTION. BOLIVIA.




  1. Megachile (Cressoniella) orcina Vachal

Megachile orcina Vachal 1908: 223. Female. Type locality: Mendoza [Argentina]. Type repository: MNHN. Examined.

Megachile (Cressoniella) orcina Raw 2002 #7: 14.

DISTRIBUTION. ARGENTINA.




  1. Megachile (Cressoniella) redondensis Mitchell

Megachile redondensis Mitchell 1930: 291-292. Female. Type locality: Mount Redondo, Costa Rica, January 1903. Type repository: ANSP 4132. Examined.

Megachile (Cressoniella) redondensis Mitchell 1934: 302.

DISTRIBUTION. COSTA RICA.




  1. Megachile (Cressoniella) veterna Vachal

Megachile veterna Vachal 1908: 235-236. Female. Type locality: Peru. Type repository: MNHN. Examined.

Megachile (Cressoniella) veterna Raw 2002 #7: 14.

DISTRIBUTION. PERU.




  1. Megachile (Cressoniella) zapoteca Cresson

Megachile zapoteca Cresson 1878: 128. Female. Type locality: Mexico (Sumichrast). Type repository: ANSP 2428. Examined.

Megachile tuxtla Cresson 1878: 128. Male. Type locality: Mexico/ San José, Costa Rica ? (Sumichrast). Type repository: ANSP 2429. Synonymy of Mitchell 1934: 302.

Megachile (Cressoniella) zapoteka Mitchell 1934: 302 (misspelling).

Cressoniella (Cressoniella ) zapoteca Mitchell 1980: 63 [figure].

ADDITIONAL REFERENCES. Cockerell 1912b: 25 (D, R-F); 1919a: 214-215 (R-M as M. tuxtla); 1949: 450 (D). Cresson 1916: 134 (T), 133 (as M. tuxtla). Hurd 1979: 2055 (D, F). Mitchell 1930: 287 (D as M. tuxtla). Mitchell 1935: 42-44 (D, R-FM).

DISTRIBUTION. COSTA RICA: San José. GUATEMALA: Guatemala City; Antigua. HONDURAS: Agua Amarilla. MEXICO: HI; JA; ME; MI; MO; NA; OA; PU; SO; VC; ZA. U.S.A.: AZ.

FLOWERS. Asclepias, Helenium, Lathyrus, Melilotus, Monarda.





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