NO. 1897. BEES OF THE GENUS 08.MIA—C0CKERELL. 221 



hypocrita Cockerell, 1906. Boulder, Colorado (W. P. Cockerell). Tab. 1. 

 Looks like Monumctha. The male, discovered by Oslar at Durango, Colorado, shows 

 that this species must be referred to Alcidamea. 

 hypoleuca Cockerell, 1907. Boulder, Colorado, June (W. P. Cockerell). Tab. 1. 



Perhaps a subspecies of 0. pentstemonis, which occurs at higher altitudes, 

 illinoensis RoBERTSON=Male of cobaltina, according to Robertson; see Ent. News, 

 1902, p. 79. 

 In spite of Robertson's decision, I can hardly believe this is cobaltina, which is a 



species of the Pacific coast region. 

 Male entirely bright green, 8 mm. long; pubescence "white below, especially on 

 clypeus, where it is also dense, above slightly tinged with ochraceous; on abdo- 

 men short and appearing sub fuscous." 

 inermis Zetterstedt, 1838. A species of northern and central Europe, said by 

 Friese (1908) to occur in Labrador. Female 9J, male 8 to 9 mm.; black; thorax 

 and first abdominal segment of female with fulvous hair above, 

 inspergens Lovell and Cockerell, 1907. Maine (Lovell). 



Ventral scopa silvery-white, black at apex; lower part of female clypeus covered 

 with very dark brown pubescence. Also in Massachusetts. 

 Integra Cresson, 1878. Colorado (Morrison). 

 Male steel-blue. Also in New Mexico. 



At Claremont, California, Baker has taken a variety of the male with the hair of 

 cheeks (except above) and of anterior legs black, 

 integrella Cockerell, 1907. Boulder, Colorado, May (Edna Baker). Tab. 7, 



Possibly a variety of 0. universitatis. 

 *inurbana Cresson, 1878. Colorado (Ridings, Morrison). 

 Dark brassy green (male). 



Additional details: Proc. Acad. Nat. Sci. Phila., 1897, p. 338. A variety (or 

 closely allied species?) from New Mexico is described in Psyche, Dec, 1901, 

 p. 283. 

 iridis Cockerell and Titus. Trout Spring, New Mexico (Cockerell). 

 Male with first ventral segment of abdomen emarginate; sixth dorsal entire. 

 New description: Ent. News, Dec, 1903, p. 233. 

 juxta Cresson, 1864. Rocky Mountains, Colorado. 



Allied to 0. longula. 

 *kincaidii Cockerell, 1897. Olympia, Washington State (Kincaid). 

 15rilliant peacock-green. 

 Paratype.— Cat. No. 6867, U.S.N.M. 

 *latitarsis Cresson, 1864. "New York, Virginia." 



Same as bucephala. 

 leonis Cockerell, 1907. Boulder, Colorado, May (Edna BakerV 

 *lignaria Say, 1837. Tab. 4, 6. 



Extends southwest to New Mexico, 

 lignaria lignariella Cockerell, 1906. Romeroville, New Mexico (W. Porter). 

 Female 9^ mm. long; pale hair on abdomen practically confined to first segment. 

 Perhaps a distinct species, 

 lignicola Provancher, 1882. Cap Rouge. 



Same as bucephala. 

 lignivora Packard, 1867. "From cells in maple." 

 Female about 13 mm. long; hair of face below antenna; dark chocolate; ventral 

 scopa largely reddish. See Univ. of Colorado Studies, vol. 5 (1907), p. 37. 

 * longula Cresson, 1864. Rocky Mountains, Colorado. 

 Resembles 0. jlorissanticola. Mr. S. A. Johnson took it at Sapinero, Colorado, 

 July 20, 1908. 

 *louisian£e Cockerell, 1910. Mound, Louisiana (C.R.Jones). Subgenus (?naiAo«mta. 

 Type.—Q&i. No. 13545, U.S.N.M. 



