Article beginning on page 393.
Psyche 9:393, 1900.

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September, igoz] PSYCHE. 8 93
of this species were seen at Langtry,
both in the sandy soil of the Rio Grandft Canton and in the stony adobe on the
desert hills. These nests were more
populous than those observed in Presidio County during the winter of 1901, They
sometimes contained upwards of a hun-
dred workers. While running the ants
carry the abdomen in a peculiar erect
position.
5. P. californicz~. This species, not
before recorded from Texas, is common
on the sandy soil of the desert near the cemetery at Marfa, Presidio County.
The colonies are smaller than those of
P. deserturum. It is impossible to find
the entrance to the obscure nest, a small hole in the ground, without tracing for- aging ants on their return journey. The
insects run with conspicuously elevated
abdomen. They sting severely.
6. P. barbatus var. n&rescms. This
variety is not uncommon at Del Rio,
Langtry, Toronto, near Alpine, and at
Fort Davis. It sometimes builds a gravel disc like other varieties of barbatzts, but at Del Rio and Langtry it was found
inhabiting small obscure nests in the
stony adobe soil, without making any
effort to clear away the vegetation about the entrance. Some of the nests were
even excavated about the roots of the
small desert acacias, a most unusual
habit for hadatus. The males and
females, which were abundant during
early June at Fort Davis, are deep fer-
ruginous red throughout.
7. P. barbutus var. marfensis. In
this form the males and females are col- ored like the workers, i. e. the head and thorax are black, the gaster bright red. The microergates of incipient nests have the same coloratinn as the large workers of old nests. P. marfensis is the domi-
nant Pogonomyrmex in Brewster and
Presidio Counties at or below an altitude of 5000 ft., where it makes huge gravel
discs. So far as my observations extend, the variety molefaciens does not occur in these counties. The variety nigrescens
lives at a higher altitude (above 5000
ft.) except further east (at Del Rio and Langtry) where it shares the lower open
country with m<Kefaciens.
ROCKFORD, ILLINOIS, July 12th~ 1902.
NoTEs.-M~. Walter Deane observed a
worn specimen of Basilarchia art/iemis in Cambridge, Mass., Jnly 14.
Cvjy5lorJiynchu.s lafiatki Linni5 is Lu be recorded from N. H. and Maine; in Maine
Mr. J. G, Jack has found it very abundant on willows and poplars at York.
In a Revision of the Cirinddidae of Roreal America (Trans. Amer. ent. soe., 1902, vol. 28, p. 43-186, pi. 1-4) Leng iecognizcs four genera, Amblychila with three species, Omus ten species and four varieties, Tetracha two species, Dromochorus two species, and Ci- cindela seventy-three species and fifty-five varieties, a total of ninety species and fifty- nine varieties. Five new species and ten new varieties are described. Plate I plots the distribution of the species and varieties of Omus, with the exception of 0. monfamis, in California; plate a shows the variation of the labrum, the form of the mandible, the apex of the elytra, and types of elpal maculation, and on plates 3 and 4 the elytral markings of 53 species and ao varieties of Cieindela are figured.




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