1910] Wheeler —Aphomomyrmex from Borneo 135 
together with the strong development of the claws and empodia and 
the peculiar head of the maxima and female, so like the conditions 
in certain wood-inhabiting Camponoti and Colobopsis, shows that 
A. hewitti is a timid tree-ant, which habitually nests in small colonies 
in vegetable cavities. 
Judging from Emery’s decription, 4. andrei must be very closely 
related to hewitti, but only the females of the two forms can be 
compared as the workers of Emery’s species are unknown. The 
female of andrei is of a brown color and measures only 5-6 mm., 
its antennal scapes scarcely surpass the posterior borders of the 
eyes, the median joints of the antennal funiculi are broader than 
long and the petiole is longer than high and broader than long. In 
other respects the two species are very similar. 
On comparing 4. hewitti and andrei with Emery’s description of 
A. afer one is tempted to conclude that the two Bornean species may 
be generically, or at least subgenerically distinct, since the African 
species differs from them in having three-toothed mandibles, nine- to 
ten-jointed antenne, the eyes less laterally situated and the frontal 
carine longer and further apart. I have thought it best, however, 
not to place the Bornean and African species in different genera or 
subgenera till more material of the latter is available and till the 
males of the Bornean species are brought to light. 
LEPIDOPTERA ON MILKWEED. 
The following species of Lepidoptera were collected at Wales, 
Maine, July 11, 1904, with the aid of a common lantern, from the 
drooping flower heads of the milkweed (Asclepius incarnata L.): 
Autographa rectangula, three specimens; one specimen each of 
Acronycta, innotata, Hadena vultuosa, H. remissa, Noctua lubricans, 
N. haruspica, Mamestra atlantica, M. subjuncta, Leucania insueta, 
and L. commoides; several specimens each of Euzxoa redimicula, 
Acronycta interrupta, Heterophleps triguttaria, and Synelys 
enucleata. 
C. A. Frost. 
