SOME BEES IN THE MUSEUM OF COMPARA- 
TIVE ZOOLOGY, HARVARD UNIVERSITY 
By T. D. A. COCKERELL 
When recently at Cambridge, I was permitted, through the kindness 
of Mr. Samuel Henshaw, to examine the type specimens of bees in the 
Museum of Comparative Zodlogy. The notes now offered relate to 
species described by Dr. A. S. Packard and Mr. E. T. Cresson. The 
species of Packard were published long ago (1867 and 1869), and have 
remained unknown, for the most part, to modern apidologists. The 
specimens are the true and only types, and include all the species of bees 
described by Packard. The Cressonian species are mostly from the 
Texan collections, forming the subject of the ‘“‘Hymenoptera Texana” 
(1872). These Texan types, after description, were divided among 
several collections, and are to be found at the Philadelphia Academy, 
the National Museum at Washington, the Museum of Comparative 
Zodlogy, and also a set evidently from the same source in the British 
Museum. In some cases it is not quite clear which should be considered 
the true types, supposing the specimens not to agree with one another. 
Cresson distinctly states, however, that the Dallas County specimens, 
obtained by J. Boll, are in the Museum of Comparative Zodlogy. 
Melipona pictifrons (Packard) 
Anthidium pictifrons Packard, Rept. Peabody Acad., 1869, p- 59- 
Collected by Orton on the Napo River, Ecuador. This is a typical Melipona; about 
13mm. long; scutellum dark; hind margins of abdominal segments with white marks 
laterally, representing vestiges of white (tegumentary) bands; on the first segment the 
band is more developed, but very narrow. Tegulae dull testaceous; flagellum pale 
ferruginous beneath; scape cream-colored beneath; hair on inner side of hind basitarsus 
orange. The face-markings are reddish cream-color, and consist of a triangular supra- 
clypeal mark; a median longitudinal bar, broadening like the head of a nail at each end, 
on the clypeus; a triangle occupying each lower corner of clypeus, touching the lower 
Jateral extensions of the longitudinal bar; and triangular lateral marks, which send a 
narrow, almost linear, process up the orbital margin. Wings strongly yellowish-reddish. 
Another species of Melipona was taken by Orton between Quito and Napo, and is labeled 
with a manuscript name (as an Anthidium) by Packard. It has the hind margins of the 
abdominal segments white, the scutellum light translucent yellow, and the clypeus with 
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