26 
INSECTS AFFECTING STORED PRODUCTS. 
the palpi stout, the penultimate joint subquadrate, the apical joint about twice and a 
half as long as broad, cylindrical, narrowed at the apex. Labrum extremely short. 
Epistoma trapeziiorm, emarginate anteriorly, the ocular canthus not projecting later- 
ally beyond the eyes. Eyes moderately prominent, very coarsely granular. Antennae 
nearly as long as the head; the two basal joints not visible from above; the third 
joint the narrowest, about as long as broad; the fourth, fifth, and sixth joints trans- 
verse, each a trifle broader than the preceding, the seventh 
joint distinctly larger than the sixth ; the eighth the largest 
(still transverse), the ninth and tenth a little narrower than 
the eighth; the eleventh still narrower, somewhat flattened, 
obliquely truncate at its apex. The rest as in Tribolium. 
The species is characterized as follows: 
Latheticus oryzse, Waterh. 
General form of Tribolium ferrugineum, F., but rather 
narrower, and with the head relatively larger and broader 
and more square in general outline. Forehead and mid- 
dle of the epistoma gently convex; the former not very 
thickly but very distinctly punctured; the epistoma less 
distinctly punctured, about twice as broad as long, 
obliquely (but not much) narrowed anteriorly, declivous 
in front, impressed at the sides, emarginate in front; the 
ocular canthus not much encroaching upon the eyes. 
Antennae rather short, thickest at the eighth joint, so 
that their general outline is somewhat fusiform. Thorax 
very little broader than the head across the eyes, a little 
narrower behind; very distinctly but not very thickly punctured; the angles obtuse; 
the sides somewhat straight, very finely margined. Elytra as wide as the broadest 
part of the thorax, parallel, their surface somewhat uneven or wrinkled; each elytron 
with four or five scarcely impressed lines, with somewhat large punctures, the lines 
somewhat irregular, or here and there interrupted. Legs rather slender. [Waterhouse.] 
Length 2.5-2.75 mm.; width 0.65 mm. 
The genus, as might be readily inferred from the 
illustration, is closely related to Tribolium; in fact, it 
is placed near the head of the tribe Llomini, directly 
after Hypophlceus and Doliema, thus bringing it above 
Caenocorse (Palorus) and Tribolium. 
The species is perceptibly shorter than our native 
Latlieticus prosopis Chttn., shown in figure 6, a trifle 
more robust, the thorax being a little shorter, as are 
also the antennae. The eyes are strikingly larger and 
the mandibles are less prominent, the inner tooth 
being strongly developed. 
FOREIGN DISTRIBUTION. 
Fig. 5— The long-headed flour 
beetle (Latheticus oryzse): 
Adult, much enlarged. 
(Original.) 
Fig. 6. — Latheticus 
prosopis: Adult. 
Greatly enlarged. 
(Original.) 
The type of the species was from Calcutta, India. It is also 
recorded from Arabia, Norway, and England. Champion has added 
its occurrence in Italy and in a London granary in samples from 
Bussorah, Persia, and Odessa, Russia. 
