THE TOBACCO BEETLE. - 33 



feeds. Jones (77) has described the habits of an undetermined 

 clerid beetle which, he states, feeds in both the larva and adnlt 

 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 

 Thcmeroclerus 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. Ill, 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: 



Thanerocxerxts Girodi. — 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 sulcato ; 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 Egg. - 



Egg elliptical oval, faintly yellowish, 1.2 mm. long and Q.38 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 Larva. 1 

 (PI. IV.) 



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 cardo 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 (PI. IV), are by Dr. Adam G. Boving. 

 75257°— -19— Bull. 737 3 



