102 (October, 
The discovery of this anomalous creature is due to Mr. Wm. 
Holden, of Charlestown, Massachusetts. His account of the locality 
and habits is as follows :—“ Taken the last of April, 1871, at Brooklyn, 
“ Alameda Co., California, in a pasture. All the specimens (about 60) 
“ were captured in an area of 15 to 20 feet, under a live oak tree in a 
“ patch of thistle and wild mustard. They were most active just after 
“ sunset and sunrise, crawling about the stalks of the thistle and mustard, 
“ feeding on flies and other smallinsects. When the plants were shaken 
“ they instantly dropped to the ground, and concealed themselves in the 
“ orass. The colours when alive were brighter, the green resembling 
“ that of the plants on which they were found, so that it was not easy 
“to distinguish them unless in motion. Their movements were slow 
“and singularly awkward. Several specimens were taken in coité. I 
“examined many similar patches of thistle and mustard, but never 
“ found a specimen except in this one place.” 
I would here observe that there is no indication of green colouring 
in the alcoholised individuals before me, though one can readily suppose 
that a greenish-grey tint existed when living. In conclusion, I remark 
that Dr. Hagen informs me that the same gentleman found, probably 
in company with the Bittacus, males of a semi-apterous species of 
Tipula, a suggestive fact in these days of investigation of “ protective 
resemblances.” 
My colleague, Mr. Rye, has kindly furnished me with the (slightly 
magnified) drawings illustrating this paper. 
Lewisham: September, 1871. 
NOTES ON CARABIDZ, AND DESCRIPTIONS OF NEW SPECIES (No. 8). 
BY H. W. BATES, F.Z.8. 
Genus Eaa. 
Castelnau, Etudes Entom., p. 93. 
Distinguished from Chalybe by the head being very convex above, 
and constricted behind into a narrow distinct neck. The terminal 
joint of the palpi is much enlarged, with an abruptly-formed membra- 
nous tip, mistaken by the author of the genus for the fourth joint, as 
in the Bembidiine. I cannot confirm Lacordaire’s statement that the 
emargination of the mentum is toothed; the emargination is semi- 
circular and simple. 
The species hitherto described are very closely allied, and difficult 
to be discriminated ; the two following, however, are very distinct. 
