September, 1902] 



PSYCHE. 



393 



of this species were seen at Langtry, 

 both in the sandy soil of the Rio Grande 

 Cafion and in the stony adoise on tlie 

 desert hills. These nests were more 

 populous than those observed in Presidio 

 County during the winter of 1901. They 

 sometimes contained upwards »f a hun- 

 dred workers. While running the ants 

 carry the abdomen in a peculiar erect 

 position. 



5. P. californicHs. 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. desertorum. 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. nigrescens. 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 barbatus, 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 barbatus. The males and 

 females, which were abundant during 

 early June at Fort Davis, are deep fer- 

 ruginous red throughout. 



7. P. barbatus var. marfcnsis. 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 coloratio-n 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 mokfaciens 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 molefaeicns. 

 R0CK.FORD, Illinois, July 12th, 1902. 



Notes. — Mr. Walter De.-ine observed a 

 worn specimen of Basilarcltia tirl/iciiu's in 

 Caniliridce, Mass., July 14. 



Cryptorliynchiis tapathi Lin lid is to be 

 recorded from N. H. and Maine ; in Maine 

 Mr. J. G. Jack has fonnd it very abundant 

 on wilk>\vs and poplars at York. 



In a Revision of the Cicindelidae of Boreal 

 America (Trans. Anier. ent. soc, 1902, vol. 

 28, p. q3-iS6, pi. 1-4) Leng recognizes four 

 genera, Amblychila with three species, Onius 

 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 aie described. Plate i plots 

 the distribution of the species and varieties 

 of Omus, with the exception of O. inonlantis, 

 in California; plate 2 shows the variation 

 of the labrum, the form of the mandible, 

 the apex of the elytra, and types of elvtral 

 maculation, and on plates 3 and 4 the elylral 

 inarkings of 53 species and 20 varieties of 

 Cicindela are figured. 



