58 FLOUR AND GRAIN BEETLES. [1899 



Tenehrioidex vmnn'faniciifi, commonly known as the " Cadelle." On 

 examining the collection carefully, I found several of the Flour Beetle 

 maggots showing signs of attack, and having apparently been killed 

 by biting and suction of their bodies ; and besides these more or less 

 injured specimens, others of the Flour Beetle maggots were lying in 

 pieces in the flour. In this instance there were no other kinds of 

 insects present excepting those mentioned above, so that it appeared 

 impossible that the attack could have been from any other cause than 

 from the deliberate onslaughts (so to call them) of the Cadelle. 



This larva, or maggot, is whitish, fleshy, nearly three-quarters of 

 an inch in length, and about a twelfth of an inch in breadth, cylindri- 

 cal, but somewhat largest in the segments near the tail extremity, and 

 slightly hairy, the hairs long at the sides. The head narrower than 

 the body, hard, dark brown or black, with short antennae, and is also 

 furnished with a pair of curved, sharp, horny jaws. The segment 

 behind the head is marked above by a transverse brown band, often 

 divided longitudinally by a narrow white line, and the two following 

 segments are each marked above by two brown spots. The tail 

 segment is dark brown, and is terminated by two brown horny conical 

 spines, and by these brown spines forming a kind of fork, and by these 

 and by the brown spots on the second and third segment from the 

 head the maggot is easily recognizable. The three pairs of claw feet 

 on the segments next the head are long enough to be of use in 

 walking. 



The pupffi are about half an inch in length, white, and with the 

 forming limbs folded beneath ; but I have had no specimens to 

 describe from. A good figure is given at p. 18 of Mr. Chittenden's 

 Bulletin, referred to, ante, p. 54. 



The beetle is elongate-oblong, depressed, from about a quarter to 

 rather more than a third of an inch in length, blackish, or sometimes 

 pitchy red in colour. Head broad, but narrower than fore body ; 

 antennas (horns) slightly pubescent, and with a not very distinctly 

 marked club ; mouth with two strong bifid jaws meeting in front. 

 Thorax broadest in front, with the anterior angles produced, narrowed 

 behind. Wing-cases broader than the thorax, and nearly three times 

 as long, with delicately punctured strife ; wings moderately ample ; 

 legs rather short. 



In rer/ard to measures of jn-evention, these are to be less called for in 

 the case of this infestation than with most of our other grain infesta- 

 tions, as there appears to be only one brood yearly. Also, when found 

 in flour or meal (as we are not aware of either the beetle or its maggot 

 feeding on these materials), it appears probable that if present they 

 are doing us more good than harm in these localities. 



As grain pests, the case is different ; and the ordinary remedies, 



