16 THE BEAN" THEIPS. 
Without doubt this insect occurs over the entire Pacific coast of 
the United States and down into Mexico for some distance and pos- 
sibly even into Central America. As it becomes better known it 
will probably be found to occur in several of the other Western 
States and some of the Eastern States as well. 
HISTORY. 
In 1895 Mr. Theodore Pergande (l) 1 described this species from one 
specimen received from Yuba County, Cal., where it was taken on 
an orange leaf infested with (Aspidiotus) Chrysomphalus aurantii 
Mask. At that time he expressed the opinion that the occurrence 
on this plant was accidental. In view of our present knowledge, 
however, of the feeding habits of this insect, this specimen was 
probably feeding on the foliage of the orange itself. 
In 1902 Hinds (3) redescribed the female from one specimen in 
the collection of the Bureau of Entomology. At that time he wrote 
that nothing was known of the life history. 
Miss Daniels (1), writing in 1901, noted the occurrence of this 
thrips in California. At the same time she erected a new genus and 
species, Caliothrips ivoodivorthi (4), for the male of Heliothrips 
fasciatus. This error was first pointed out by Dudley Moulton (G) 
in 1907, and the present writer agrees with him, as the ■ male of 
fasciatus fits the description exactly except in the number of an- 
tennal segments. Undoubtedly Miss Daniels made a mistake in the 
number of segments in the antenna, since fasciatus is 8-segmentedonly. 
Crawford (7), in 1909, under " Xotes on California Thysanop- 
tera," records taking numerous specimens in southern California. 
These were captured on pine, Lotus glaber, and apple. 
Under the name Euthrlps fasciatus, Bremner (8), in 1910, reported 
this insect as injuring beans and peas and as occurring on alfalfa 
and on peach and pear trees. He recommended spraying with nico- 
tine solutions, and wrote that of these sulphate of nicotine in the 
proportion of 1 ounce to 5 gallons of water had given perfect 
success. 
In 1911 Coit and Packard (9) wrote that the bean thrips caused 
considerable defoliation to cotton and alfalfa in Imperial Valley, Cal. 
Moulton (10) also gave a list of its food plants. 
The present writer, in 1911 (12) and also in 1912 (13), published 
two papers dealing with the life history and habits of Thripoctenus 
russelli Crawf., a parasite reared in large numbers from this thrips. 
RECENT RECORDS. 
This species, as identified by Mr. Pergande, was sent to the Bureau 
of Entomology January 25, 1898, by Mr. M. J. Wessels, of Lewiston, 
1 Numbers in parentheses refer to the Bibliography, pp. 44-45. 
