6 
BULLETIN 901, U. S. DEPAETMENT OF AGRICI^LTrRE. 
small and non-setiferous, the posterior one quite large and bearing two setae; on each 
side below the outer dorsal plates is the laterally prominent compound tubercle which 
bears three setae instead of two as on the abdominal segments; below the compound 
tubercle are two plates each bearing a single seta, the anterior one also bearing the 
mesothoracic spiracle; there is a pair of tubercles above each coxa, the posterior one 
of which bears a single seta: ventrally the arrangment of plates is similar to that of 
the first abdominal segment except that the posterior pair of plates bear only one 
seta each. 
The third thoracic segment is like the second but without the spiracle. 
The eighth abdominal segment is like the second, but with only one small dorsal 
plate on each side of the posterior mid-dorsal plate. 
On the ninth thoracic segment the dorsal plates are fused into a single large one, 
the anal shield, which bears five pairs of setse; ventrally there is a single elongate plate 
bearing two pairs of setae. 
The tenth abdominal segment is without plates or setse. 
Measurements: Width of head: First instar 0.32 mm.; second instar 0.51 mm.' third 
instar 0.74 mm. Average length of full grown lar."a 7.5 mm. 
THE PUPA. 
Similar to pupa of AUka u oodsi, PI. II, B. 
In general appearance this pupa is similar to the pupa of other chrj-somelid beetles, 
the dorsal line being strongly arcuate, the legs folded ventrally, bent so that the 
femora are directed away from the median line and the tibiae toward it, the prothoracic 
and mesothoracic legs over the wings and the metathoracic legs under them. 
Color bright yellow, appendages lighter. Antenna! joints with a circlet of pro- 
jections at the distal ends (four projections ^isible on each joints especially con- 
spicuous on the distal segments; elytra reaching the fifth abdominal segment, wings 
the sixth; spiracles borne on the mesothoracic and the first six abdominal segments; 
arrangement of setse as follows: 3 pairs on head, 1 above ch-peus, 1 on inner margin 
of the eyes, and 1 slightly above and between the eyes; on prothorax, 8 pairs; on 
mesothorax and metathorax, 2 pairs; on abdominal segments 1 to 8, 4 pairs in a row 
near the posterior dorsal margin; and on segment 9, 4 pairs around the anal- hooks; 
3 set£e on the distal end of each femur. Length 5 mm. 
DISTRIBUTION. 
The grapevine fiea-beetle is found in tlie eastern half of the United 
States and in the Canadian Province of Ontario. In entomological 
literature and in the files of the Bureau of Entomology it has been 
recorded from the District of Columbia and from the follovring States: 
Massachusetts, Vermont, Connecticut, New York. Pennsylvania, 
New Jersey, Delaware, Maryland, Virginia, West Virginia, Xorth 
Carolina, Georgia, Florida, Ohio, Indiana, Illinois, ^lichigan, Wis- 
consin, ]\Iinnesota, Iowa, Missouri, Arkansas, Texas, Kansas, Ne- 
braska, Colorado, and New Mexico. Some of these records may 
refer to the ^' small form." 
FOOD PLANTS. 
A list of food plants recorded in the literature of the species is 
given under history. The writer has collected it only on cultivated 
grapes ( Vitis spp.), on various species of the ^ild grape (Vitis spp.), 
and on Virgmia creeper {Pa?iJienocissus quinquefolia) . 
