2 BULLETIN 1303, IX. S. DEPARTMENT OE AGRICULTURE 
Sanderson (10) reported serious injury to the pecan crop by A. caryae 
in 1903, but it appears to the writer that the greater portion of the 
damage, if not all, should have been accredited to the species of 
Acrobasis discussed in this bulletin and to A. caryivorella. Dyar in 
1908 (2), in a paper on the species of Acrobasis, includes this insect. 
In 1914 the writer (3) made a brief mention of this species in an 
article on the pecan leaf case-bearer (Acrobasis nebulella Riley), and in 
Farmers' Bulletin 843 (4), appearing in 1917, it is treated at length. 
The following year Turner (12) and Matz (8) gave general accounts 
of the insect. 
DISTRIBUTION 
Hulst (7), in his original description of Acrobasis Tiebescella, gave 
New Jersey and Texas as its habitat; Dyar (1) listed it from New 
Jersey, Texas, Illinois, and Wisconsin, and in an article appearing in 
1908 (2) mentioned Brown wood, Tex., and East River, Conn., as 
localities in which it has been collected; and Turner (12) reported it 
from Thomasville, Ga., and Cairo, Ga. In the United States National 
Museum collection there are specimens from Brownwood, Tex.; 
Goodman, Miss.; Bon Ami, La.; and Monticello, Fla. Besides the 
localities mentioned, the records of the writer show that this species 
also occurs at Waukeenah, Fla.; Baconton, Dewitt, Putney, and 
Moultrie, Ga. ; Mobile and Fowl River, Ala.; Ocean Springs and 
Pecan, Miss.; Keithville, La.; and Marshall, Victoria, and Bend, 
Tex. 
The pecan nut case-bearer, along with another nut-feeding species 
of Acrobasis, A. caryivorella Rag., is rather generally distributed in 
the pecan-growing sections of the Southwest, especially in Texas, 
where it is reported annually as causing much damage. In the 
Southeast, however, it has been recorded only from scattered locali- 
ties in Florida, Georgia, Alabama, Mississippi, and Louisiana. For 
the last 9 or 10 vears this insect has been causing considerable loss 
to pecan growers in the vicinity of Monticello, Fla., and Thomasville, 
Ga., and during 1922 it was reported for the first time as occurring 
in injurious numbers in the large commercial orchards in the Albany, 
Ga., district, which is at present rated as the most important section 
for the production of cultivated pecan nuts. In 1923 and 1924 the 
insect caused very heavy damage in the large orchards at Baconton, 
Dewitt, Putney, and Albany, all in this district. This species 
appears to be gradually extending its range of destructiveness, and 
sooner or later it will probably prove a most formidable pest through- 
out the greater portion of the pecan belt. 
FOOD PLANTS 
The only food plant on which this insect has been found by the 
writer is the pecan (Hicoria pecan), but it is to be supposed that it 
subsists also on other species of the genus Hicoria. In literature oak 
and pecan are given as food plants. Dyar (2) states that six speci- 
mens from Brownwood, Tex., were bred at the insectary of the U. S. 
Department of Agriculture from larvse on pecan mining into the 
young buds. In his original description Hulst (7) has the follow- 
ing statement: 
A specimen from New Jersey received by Prof. J. B. Smith, has on it a label 
marked "on oak, Jersey pines, June." The pin is thrust through an oval close 
cocoon which was undoubtedly made at or under the surface of the ground. 
