In 1806, Hübner, as we have seen, printed for his own use and in order that it might be submitted to certain competent persons, to be examined and judged of, the sketch of a plan for the arrangement of the Lepidoptera, called the Tentamen, &c.; and this sketch “was afterwards enlargcd and publishcd as the verzcichniss bekannter schmetterlinge,” as stated by Geyer, Thon's Archir, vol. 1, p. 28, 1827.

Taking into consideration the great difference in the lives and habits of the orders in question, I do not think the interbreeding of species of the genus Tetreao is any strong proof of the correctness of Dr. Hagen's conjecture. Robert Mudie, in his “Feathured Tribes of the British Islands,” speaking of Tetreao tetrix, says: “During the latter part of autumn and winter the males live together in flocks and in a state of the most perfect harmony

♂ ♀. This species in ornamentation approaches partialis Led., Taf.9, fig. 8. Both wings clear pale lemon yellow. Primaries crossed by four equidistant lines, of which the first three from the base form brown spots narrowly outlined in black on the costal region. The third spot coalesces with an inferior spot on the line. The second line widens into a small spot on internal margin. The fourth line has a small dark spot on costa and one on internal margin.

My kind correspondent, Mr. O. Meske, of Albany, sends me a male specimen presumbly belonging to this species, which we referred originally to the Cuban genus EuscirrhopterusGrote, and (from a female) considered congeneric with E. Poeyi Grote. THe specimen now sent has an undivided frenulum and is unquestionably a male. It does not show, however, the aberrant wing structure of Euscirrhopterus.