In Vol. XXV., p. 253, I gave some account of the dimorphism of P. Bairdii, mainly from the observations and experiments of Mr. David Bruce. From what he had seen at Glenwood Springs, Coloradom he had satisfied himself that not only Bairdii and Oregonia were one species, but that P. Hollandii, Edw., formed part of the same. Though the two first named differ in facies more decidedly that do Turnus and Rutulus, and Rutulus and either Eurymedon or Daunus. Hollandii looks on the upper side like Bairdii, but beneath, while in general like Bairdii, the yellow spots are larger, making the surface much gayer.

Oiketicus Townsendi. Cockerell.

1893—Dyar, Ent. News, IV., 321 note. (No name.)

1894—Dyar, Ann. N. Y. Acad. Sci., VIII., 205 (fig. of larvel setœ).

1895—Cockerell, Bull. 15, New Mex. Agr. Ex. Sta., pl. fig. 7, 7a.

1895—Cockerell, Ann. Mag. Nat. Hist., (6) XV., 208.

The Cleridæ are a rather small family of beetles, but make up for their comparatice scarcity by the beauty of form and colour shown by many of them. As a rule, they may be easily recognized by their resemblance to a few common types such as are found in all cabinets, and agree in possessing the followiong family characteristics: The antennæ are usually serrate, with the outer joints enlarged, forming an open or more rarely a compact club; the tarsi are five-jointed, the first or fourth joint often very small and indistinct, all but the fifth furnished with membranous appendages.

(1) Lecanium caryœ, Fitch, var. canadense, v. nov.

♀ scale smooth, shiny, red-brown, convex, malleate, but not or hardly plicate. Length 4, breadth 3, height 2 mm., varying to length 5, breadth 4, height 3 mm. (Some Maine specimens 6 mm. long.) Removed from the twigs, the scales leave an oval white mark. (Nappan scales are paler and more yellowish, also somewhat smaller. Posterior incision perhaps a little longer; scales also rather more tending to be plicate.)

There seems to be some misapprehension in regard to the validity of our species of Pamphila, and inasmuch as I have been studying our Hesperidæ for some years past, I thought some remarks on the subject would not be inappropriate. We now have in this genus ninety-six species as they would apper in a list according to the generally accepted specific values. With the exception of about two groups, I consider the species remarkably well defined and constant, and if you one become thoroughly familiar with them, there is not the slighest difficulty in separating any of them at sight.

Of the three families of Saturnina found in North America, only the Saturnidæ occurs in the European fauna. Conversely no analogue of the European Aglia tau* has been found in America. In a very interesting paper, Ann. Mag. N. Hist., Vol. XI., 1893, Dr. Packard says of this species: “Aglia appears to be a Ceratocampid in its earlier larval stages, the caterpillar in its final stage, however, and the moth being closely related to the Saturnians”. This being so, it is clear that Aglia cannot be classed as a subfamily of Cithernidœ, from which the habit and struture of the moth and the mde of pupation seem to exclude it.