20 PAPERS ON CEREAL AND FORAGE INSECTS. 
unterior femora and tibiz. Eyes scarcely discernible. Face with three pairs 
of shallow tubercles, the basal pair the largest, and each giving rise to a 
stiff, brown hair. Other minute piliferous tubercles, especially near the pos- 
terior dorsal border of the abdominal joints, being very stout on the preanal 
joint, or pygidium, where they form two series of que2ridentate ridges. 
To Mr. Schwarz’s description the following may be added: 
Lateral view : Body oblong, thickest at middle; thorax depressed anteriorly ; 
abdomen cylindrical, tapering from seventh segment; thoracic pair of spiracles 
very prominent (fig. 9, d), first five pairs of abdominal spiracles prominent (fig. 
9, c), the three on the rear segments not prominent. Elytra short, curving 
ventrally between middle and hind legs, reaching tarsi of hind leg, covering 
upper half of femur of hind leg; middle leg resting on elytra. 
The pup occur mostly during the latter part of August and first 
part of September and are always to be found in their cells in the 
larval burrows near the crown of the taproot and nearly always 
below the surface. The pupal period is from 10 to 12 days. 
THE ADULT. 
(Fig. 10.) 
The adults are very large, robust, and reddish black when newly 
issued, changing to black when older. The original description by 
Chittenden“ is given here: 
Body two-fifths as wide as long, of robust appearance because of the sub- 
quadrate thorax, which is nearly as wide as the elytra; general color black or 
piceous, moderately shining; alutaceous deposit on unelevated surfaces incon- 
spicuous, appearing to be normally dark rufous or piceous velvety when the 
extraneous argillaceous covering does not persist. 
Rostrum three-fifths the length of the thorax, considerably arcuate, strongly 
subequally compressed, apex prolonged at the posterior angle with an acute 
spine, producing the appearance of greater curvature ofthe inner surface, base 
feebly protuberant, moderately dilated; anterior face of apex broadly deeply 
concave; surface minutely punctate, more distinctly and densely at base, base 
moderately deeply channeled with distinct deep interocular puncture and short 
impressed line. 
Thorax longer than wide, fully three-fourths as long as the elytra, sides usu- 
ally widest just in front of middle, anterior third suddenly and very strongly 
arcuate and constricted at apex, posterior two-thirds or three-fourths subparallel, 
or gradually narrowing to the base which is feebly bisinuate. Vittze feebly 
elevated, tending toward obsolescence, moderately finely but distinctly and 
Sparsely punctate, more coarsely and densely at the ends; median vitta extend- 
ing from a fine line and rapidly widening to a point just in front of the middle 
where it is broadly dilated, then more abruptly narrowed, extending in a nar- 
rower line to near the base; lateral vittee sinuous with a tendency to become 
confluent with the median in the apical half, generally a little wider in basal 
half but narrower than the median, branch wide but ill-defined; interspaces and 
surface at sides coarsely foveate-punctate, punctures becoming confluent, espe- 
cially posteriorly at sides. Scutellum deeply broadiy concave. 


@Proec. Ent. Soc. Wash., vol. 7, No. 1, p. 59, 1905. 
