October, ’18] 
BACK: CLYTUS DEVASTATOR 
413 
in figure 2 of plate 12, where their frass-plugged winding burrows 
stand out in contrast to the discolored sapwood. As they become 
older, they bore into the harder and older wood as showed by the 
sections of the trunk (PL 12, fig. 1). Not only were larvae found 
working in various parts of the trunk and in the stubs of the larger 
branches, but even in the roots, both large and small. Fully half of 
the stump illustrated (PI. 12, fig. 2) was beneath the surface of the 
ground, yet the removal of the bark brought to light the surface feed¬ 
ings of the young larvae on the roots and the burrows of the older 
larvae in the center of the roots, near the crown. The mature larva 
feeding in the hard wood, has the habit, similar to that of the round- 
headed apple-tree borer ( Saperda Candida), of eating its way to the 
surface, as indicated on the left of the cut surface of figure 12 , plate 1, 
after which it retreats a short distance from the bark to pupate. The 
adult, upon emergence, gnaws a hole about three eighths to one-fourth 
of an inch in diameter in the bark and escapes. 
Identification 
Adults were reared and forwarded to Mr. Schwarz who at once pro¬ 
nounced them to be Clytus devastator, an insect first described by MAI. 
Delaporte de Castelnau and Gory in 1836 (1), and named devastator 
because of the great injury it was known to cause Citrus in Cuba. The 
authors say “Le nom que nous lui donnons est tire de ses habitudes, 
ces insectes causant de grands degats aux citronniers. ” The adult 
beetles are normally a trifle over half an inch long, but vary greatly 
in size and in the color pattern of the elytra. The authors of this 
species give (1) an excellent colored figure of an adult which bears a 
pattern in white. The pattern of an adult reared from the orange 
tree at Perico and illustrated (PL 12, fig. 3) is one of many variations 
to be found in this species among the material of the U. S. National 
Museum. 
Distribution and Hosts 
The specimens of this species in the U. S. National Museum have 
been captured in Cuba at Cayamas (January, February, May, 1910, 
by E. A. Schwarz) and at Central Constancia (May, 1914, by J. F. 
Merrill); in Florida, at Palm Beach (May, 1903, by E. A. Schwarz), 
Key West (April and May, 1903, by E. A. Schwarz), Paradise Key 
(Royal Palm Park, May, by T. E. Snyder), Chase (March) and Perico 
Island at mouth of Tampa Bay (June, 1910, by E. A. Back). 
At Cayamas adults were reared from “Cuban mahogany.” The 
specimens from Chase, Fla., were reared from pomegranate (U. S. N. 
M., Hopk. No. 9902 i). The specimen from Paradise Key was caught 
