1910] Cockerell—Bees from Eldora, Colorado Q47 
bluer; first segment with white hair, the others with it thin, short and black, a 
little glittering white principally along hind margins of segments and on apical 
segment; scopa black. 
In my table in Univ. of Colo. Studies, 1907, p. 250, this runs to O. wilmatte, from 
which it differs by its darker, green, coloration, and the smaller subglobose abdomen. 
The hair on the pleura is only about half as long as in O. pikei. 
Var. a. Similar, but hair of pleura somewhat pallid. This is much darker than 
O. phacelie, and the tegule are not conspicuously green in front as in that species. 
Anthidium tenuiflorz Ckll. Both sexes at Grindelia. 
Dianthidium pudicum Cress. Both sexes at Grindelia. 
Apis mellifera ligustica Spin. Only one seen; at Grindelia. 
Bombus flavifrons Cress. At Grindelia. 
Bombus juxtus Cress. At Phacelia. 
Bombus rufocinctus astragali Ckll. One male at Grindelia. 
For other records of Bombidz from Eldora, see Univ. of Colo. 
Studies, IV, pp. 257-258, and VII, p. 186. 
SOME BEES FROM ECUADOR. 
I am indebted to Mrs. L. H. Dyke for some bees which she 
recently collected at Portobelo (pronounced Porto Bello), Ecua- 
dor, at an altitude of about 4,000 ft. 
(1) Euglossa cordata (L.) / 
(2) Xylocopa varians ecuadorica Ckll. This was described only last year, 
from material in the British Museum. 
(3) Mesocheira bicolor elizabethae subsp. nov. 
9. Length 12 mm., in most respects similar to M. bicolor. Face, cheeks, and 
occiput with dull white (not reddish) hair, vertex with black; antennze black, 
the first three joints and extreme base of fourth broadly red beneath; thorax 
above dark green, the scanty hair dull white and black; abdomen a fine greenish 
blue, almost steel-color, but greener, the basal part of the first segment dark red. 
Extraordinarily like Melissa decorata Smith, but the scutellum quite different. 
Named after Mrs. Dyke’s little daughter Elizabeth. 
These bees illustrate the fact, already indicated by other col- 
lections, that the Brazilian bee-fauna passes over into the 
mountains of Ecuador, the species becoming in most cases dis- 
tinetly modified. 
T. D. A. CockERELL. 
