1 68 PSYCHE [August 



the southern states. It does not even occur among the fine lot of ants kindly 

 collected for me in the high mountains of New Mexico by Prof, and Mrs. T. D. A. 

 Cockerell. 



The subspecies diecki also occurs at Rockford under the dead leaves in the 

 very same localities as the typical hrevicorne. Often the nests of the two forms are 

 located only a few feet from each other. The winged sexes of diecki are recorded 

 in my notes as occurring from Aug. i5th-i9th. They are decidedly smaller than 

 the corresponding sexes of the typical form, and the male is paler, with colorless 

 wings and paler legs and antennae. I could detect no differences in habits between 

 diecki and the typical hrevicorne. 



Austin, Texas, 



April 25th, 1903. 



LIFE HISTORIES OF NORTH AMERICAN GEOMETRIDAE.— XLII. 



BY HARRISON G. DYAR, WASHINGTON, D. C. 



Coniodes plu7nigeraria Hulst. A general account of the life history has been 

 given by Coquillett, but without detailed descriptions. The species has been ■ 

 repeatedly bred at the Department of Agriculture. Eggs were received from Mr. 

 E. M. Ehrhorn which were collected three miles above Saratoga, Santa Clara 

 County, California, on an apple tree, and from these the life history was made out. 



Eggs. Laid in a large mass on a twig on the flat sides. Elliptical, strongly flattened 

 above and below, ends nearly alike, one only a little depressed. Surface minutely shagreened, 

 somewhat transversely so, the reticulations nearly lost, elongate transversely, moderately 

 uniform. Size .8 X -6 X -4 mm. Color dark bronzy brown. 



Stage I. Head rounded, bilobed, clypeus rather high; dull black, epistoma whitish ; 

 ■width about .3 mm. Body robust, rather short, normal, not tapered, segments somewhat 

 angularly widened centrally. Black, a narrow yellowish wliite line on the sharp substig- 

 ir.atal fold, broken in the incisures; traces of geminate yellowish dorsal line in the incisures 

 of central segments. Tubercles rather large, i-ounded, brown ; setae distinct but not long, 

 brownish; feet black. 



Stage II. Head erect, i-ounded bilobed. thin anterio-posteriorly at \ertex, brown-black, 

 reticulate with darker, scaicely shining; widtli .5 mm. Body moderate, rather thick, seg- 

 ments annulate, tubercles large and produced but smooth, concolorous, rounded, not tapered, 

 black. Body slaty black, dull; traces of a geminate white dorsal band in the incisures and a 

 broad, diffusely white lined lateral area, ill delined. Feet all black; setae fine, dark, incon- 

 spicuous. 



