On South-American Monkeys, Bats, <&c. 455 green ; facial quadrangle a little longer tlian wide, the inner orbits convex ; labrum (except very narrow margin and two large spots at basal corners), clypeus (except very narrow anterior edge and a long black mark on each lateral margin), supraclypeal band, rose-thorn-shaped lateral face-marks, and broad stripe on scape, all very pale yellow ; hair of head, thorax, legs, and first two abdominal segments abundant, long, erect, and white, with no Mack hairs intermixed ; flagel-lum entirely black ; third antennal joint long and narrow, suddenly enlarging, trumpet-like, at the apex; thorax dull, densely rugoso-punctate; tegulse black. Wings clear, nervures black or almost so. Legs black, even to the tarsi ; hair on inner side of tarsi shining coppery red when seen in the proper light ; middle tarsi long and slender, twice as long as their tibiae, but not otherwise peculiar; spurs very long; basal joint of hind tarsi with a prominent oblique tooth on the anterior margin ; abdominal segments 3 to 5 with erect black hair, and some light hairs intermixed ; sixth with light hair, not conspicuous ; no hair-bands ; apical dorsal segment with short appressed silvery hair, narrowly truncate, with lateral margins showing a strong double curve; claspers very large, deeply bifid or bidentate, the posterior margin obtuselv angled, the base of each posterior tooth emitting a long cylin-drical light brown fleshy organ, beset with short hairs; ventral surface of abdomen with long white hair. Bab. Las Vegas, N. M., May 1, 1903 {Anna Gohrman). Flying around Ribes longiflorum (along with A. Porterce), but the tongue seems too short to suck from that flower. It is allied to A. Edwardsii, Cresson. XL1V. — Notes on South-American Monkeys, Bats, Carnivores, and Rodents, with Descriptions of new Species. By Oldfield Thomas. The Generic Names Callithrix and Hapale. The common laxity about nomenclature is nowhere more striking than among the Primates, and an instance of this occurs in connexion with the genera of Cebidce usually termed Callithrix and Hapale, the Titi Monkeys and Marmosets. Fine paper as it was, Greoffroy's 1812 monograph of the 30*
BioStor
