THE TOBACCO BEETLE. 30 
feeds. Jones (77) has described the habits of an undetermined 
clerid beetle which, he states, feeds in both the larva and adult 
stages upon the tobacco beetle in the Philippines. The drawings of 
the different stages of the clerid, given by Jones, show it to be either 
Thaneroclerus girodi or a very closely related species. Wolcott (72) 
records its presence in the United States. 
The insect is new to the fauna of the United States and there is, 
in addition to the foregoing records, only a single reference to it in 
entomological literature, this being the original description by Chev- 
rolate (18). 
THE ADULT. 
The adult (PI. III, fig. 5) is a reddish-brown beetle about 6 mm. in length. 
The wing covers and thorax are pitted and somewhat pubescent. The indenta- 
tions are smaller and somewhat more regular on the thorax than on the elytra. 
The original description by Chevrolat (18) is as follows: 
THANEROCLERUS Giropi.—Long. 6 mill. ; lat. 2-1/3 mill. Elongatus, sanguineus, 
pilosus creberrime punctulatus; capite magno convexo, antice Semicircuiter 
emarginato et crassiusculo; mandibulis nigris; antennis elongatis, art. 2 
primis funiculi a equalibus modice elongatis, clava 3 articulata; prothorace 
minute et crebre punctulato, medio depresso et anguste suleato; scutello rotunde 
transverso, longitudine sulcato; elytris in medio depressis; pedibus pallidiori- 
bus. 
The following descriptions of the egg and pupa stages were 
prepared by Mr. S. E. Crumb from specimens collected at Quincy, 
Fla., in 1913. Dr. Adam G. Boving has drawn up the technical de- 
scription of the larva. 
THE HGG. 
Egg elliptical oval, faintly yellowish, 1.2 mm. long and 0.88 mm. broad at 
middle, membranous, without apparent sculpture, bearing on one side about 
one-third from the larger end two small, short, distant bristles. 
THE LaARvA.t1 
(Jel. AAG) 
GENERAL CHARACTERS. 
Ventral side of epicranium continued horizontally behind posterior end of 
hypostoma and its tentorial pits; gula a rectangular plate between ventral 
margins of epicranium; occiput vertical. Mouthparts prognathous; labrum 
and clypeus present; antenna three-jointed ; mandible without molar part, with 
Simple apex and deep groove along cutting edge; ventral mouthparts not re- 
tracted; maxillary eardo as large as stipes, only posterior half chitinized ; 
maxillary palpiger present, carrying a three-jointed palp; lacinia bilobed, ex- 
tending from distal end of stipes; submentum well defined, in front of gular 
plate; no maxillary articulating area; mentum freely projecting; stipes labi- 
alis with well developed palpiger, two-jointed palp, and ligula; buccal cavity 
with a pair of small, widely separated, bidentate, hypopharyngeal chitiniza- 
tions and a pair of flat, rounded, pharyngeal plates. Tentorium represented by a 
1 The descriptions of the larva, with figures (Pl, IVY), are by Dr, Adam G, Boving, 
75257°—19—Bull. 737——3 
