large black blotch mines. When they become full grown they vacate their mines and 
drop to and enter the ground. Here they construct cells 6 to 10 cm below the surface 
in which to pupate. Trees heavily fed on by both larvae and adults may be 
completely defoliated. 
Glyptoscelis pubescens (F.), the hairy leaf beetle, occurs primarily east of the 
Mississippi River from Canada to Georgia and feeds on various species of pines 
and, reportedly, spruce and hemlock (67/). The adult is elongate-oval, robust, 
broadly rounded posteriorly, dark brown with a brassy or golden sheen, and is from 
7 to 10 mm long. It is also sparsely clothed with a mixture of white and brownish 
hairs (fig. 114). Adults feed on the edges of pine needles, causing them to turn 
brown. Defoliation has been reported in seed orchards of Virginia, shortleaf, and 
eastern white pines in North Carolina. G. barbata (Say) feeds on hickory and 
related trees from Connecticut to Pennsylvania. The adult resembles the adult of G. 
pubescens except that it is smaller and its upper surface is shining brown. The genus 
Glyptoscelis in the United States and Canada has been reviewed (694). 
Courtesy H. C. Coppel, Univ. Wis. 
Figure 114.—Glyptoscelis pubescens, the hairy leaf 
beetle, ovipositing into a cocoon of the introduced pine 
sawfly on eastern white pine. 
Many other chrysomelids also feed on various species of trees in the Eastern 
United States. A few of these and their hosts are as follows: Pachybrachis peccans 
Suffrian—hickory and birch: P. tridens (Melsheimer)—willow: P. othonus (Say )— 
ash and elm: and P. carbonarius Haldeman—oak; the claycolored leaf beetie, 
Anomoea laticlavia (Forster)—honeylocust, black locust, elm, live oak, and silk- 
tree: Tymnes tricolor (F.)—oak, walnut, and eastern hophornbeam:; Bassareus 
literatus (F.)—hickory: Derocrepis aesculi (Drury )—buckeye: Plagiometriona 
clavata (F.)—sycamore, basswood, and oak; Neochlamisus platani Brown—syc- 
amore; Xanthonia decemnotata (Say)—oak, beech, and elm: Paria sexnotata 
(Say)—redcedar: P. guadrinotata (Say)—walnut and mountain-ash; and Syneta 
ferruginea (Germar)—birch and oak. 
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