115 
John, Md., and a visit to the infested garden showed that the plants, 
which were only from an inch to 2 or 3 inches in height, were very 
badly infested. A dozen or more beetles were often found ona single 
plant, many 7m copula, and sometimes so many would be crowded into 
a single rolled blade as to make the interior look black. This was the 
third planting of corn which had been made in this plat. 
It was not possible to make a second visit to this garden until about 
amonth later, and then the beetles had practically disappeared, Little 
additional injury had been done, and it seems probable that the beetles 
left the plants within a week after their first being noticed. 
Search was made for the larve at the roots of corn and e@rasses, but 
without success. 
Earlier mention of this species and its attack upon millet and allied 
grasses was made by the writer in Bulletins 9 (n. s., p. 22) and 17 (p. 85). 
It has also been mentioned by different writers as an enemy to corn 
and to beets. On the former plant it sometimes occurs in abundance, 
and does conspicuous injury by making minute 
holes or elongate slits and white streaks on the 
leaves. It has been found injuring beets to some 
noticeable extent in Nebraska and Illinois, and in 
the latter State, according to Forbes and Hart 
(Baloo; Univ. Ti Agr.: Exp. Sta., 1900; p. 
466), it has been noticed in abundance on coarse 
grasses near Elizabeth, Ill. Like most of the 
Chrysomelide, it hibernates as an adult, and eggs 
have been obtained early in July. Otherwise its | 
life history appears to be unknown. FIG. 29.—Chaetoenema puli- 
This flea-beetle resembles the species which HENGE MR Cams eS, 
will next be figured, and with which it is con- 
generic in general structure as well as in habits. It is, however, 
much larger, measuring fully twice as long, or about one-tenth of an 
inch, is more robust, somewhat irregularly oval, and the entire surface 
is uniformly brightly bronzed and slightly brassy. 
It is broadly distributed from the New England States southward to 
Florida and Texas and westward to California. It apparently occurs 
nearly everywhere east of the Rocky Mountains, and westward has 
also been recorded from Utah and Montana. 
The Brassy Flea-beetle (Chevtocnemau pulicaria Mels.).—Injury to 
sweet corn by the toothed flea-beetle, as above reported, was compli- 
sated by the presence of this second species, which, however, occurred 
in much smaller numbers. 
This species (fig. 29) is the more abundant of the two in most locali- 
ties, and considerably smaller. It is probable that it is usually the 
‘ause of the trouble attributed to it. This flea-beetle measures less 
than one-twentieth of an inch, and is of oval, slightly oblong, convex 
