* THE CLOVER ROOT BORER 9 
vex posteriorly. The face, prothorax, elytra, legs, antennz, and ven- 
ter are distinctly clothed with short golden-brown hairs, hairs longer 
on venter than on dorsum side pieces of mesothorax and metathorax; 
that is, the metathoracic episternum of Hopkins and mesothoracic 
episternum and epimeron, clothed with oval, gray or 
silvery, fringed scales. The convex head is finely 
and shallowly punctured with a faint transverse me- 
dian impression at the base of the short beak. The 
antennz, whose scrobes are distinctly separated from 
the front of the elliptical eyes, have a 7-segmented 
funicle, about as long as the distally inflated scape, 
and a short oval-connate, slightly compressed club, of 
which only the first suture is strongly chitinized and 
distinct, the first and second segments about equal 
and each longer than the third and fourth together. 
Swaine (41, p. 43) stated that the proventriculus has— 
a short diagonal band of small costal teeth backwards from 
base of bristles, almost obsolete on disc which is not finely 
_ granulate; ligula widened distally and truncate at tip. 
The prothorax is closely and deeply punctured, Eseer oS borer Tier 
punctures irregular in size and shape, with atend- Si view, x 16 diam- 
ency to rugosity, vestiture of hairs short, fine, ob- 
scure. Median line absent, or present and more or less interrupted 
and obscure, usually vestigial, scarcely elevated if at all when pres- 
ent, marked by dividing line between prothoracic hairs even when 
not otherwise evident. Elytra clothed with three types of vestiture, 
eegEe of striz large, deeply indented, and tending to rectangu- 
ar, each with a very fine, appressed, obscure, pale hair; interspaces 
more finely and obscurely punctured, punctuces well separated, 
each accompanied by a single, coarse, brown, 
backward-directed scalelike hair. The inter- 
spaces are roughened between and around 
punctures, becoming shagreened or granu- 
late posteriorly and laterally, and sparsely 
clothed with shorter golden-brown appressed 
scalelike bristles. Interspaces and striz 
almost straight. Ventrally, the anterior 
cox are widely separated and clothed with 
long golden hairs, the second visible ventral 
abdominal segment, or sternite 4 of Hopkins, 
about as long as the fifth, or sternite 7 of 
Hopkins, and nearly double the third, or 
sternite 5 of Hopkins. Venter and legs shal- 
lowly and evenly punctured and clothed 
Fig. 7.—Adult of clover root borer, With hair. The tibiz are toothed and di- 
X 30 diameters lated, the anterior pair with exterior angle of . 
anterior margin nearly rectangular, with four 
short, blunt, recurved teeth close together on anterior margin and a 
stronger lateral tooth usually posterior to others on outer margin; 
the median pair have three strong teeth along anterior half of outer 
margin; the posterior pair have two well-separated strong teeth 
along outer margin. The third joint of the tarsus is deeply bilobed. 
97826—26+——2 
