1882.] 



81 



skill, and has also furnished me with his drawings, and the chief part 

 of the appended description : so little is known of the larva) of the 

 various species of Coleoptera, in spite of their characters being so im- 

 poi'tant for classification, that the addition of even one or two full 

 descriptions may prove of great use. 



The following, then, is a detailed description : — 



Head very large, rounded, with short, straight, filiform antennse, consisting of 

 three almost equal joints (fig. 6). Body elongate, rather narrowed anteriorly, con- 

 siderably widened behind middle, conical towards the extremity, with two prothoracic 

 segments divided by a very indistinct suture, three metathoracic segments divided 



by two equally indistinct sutures, 

 and seven abdominal segments, 

 of which the first is considerably 

 the largest. The last segment of 

 the abdomen carries two small 

 knobbed processes, and each joint 

 is furnished with strong setae. 



Legs rather long and slender, 

 with the trochanter of the hind- 

 leg divided transversely in two parts 

 (fig. 7) ; tibim narrowed towards 

 apex, widened at the base, with a 

 few long setae on each side : tarsi 

 one-jointed, carrying two claws of 

 unequal length. 



The mouth parts are very pe- 

 culiar (especially the maxillary 

 palpi, which are almost unique in 

 shape), and, therefore, deserve a 

 separate description : — 



The maxillary palpi (fig. 2a) 

 are four-jointed, and have the basal 

 joint very enlarged, with a hollow 

 cavity on the inner-side covered 

 with a membrane, from which a 

 long point or style proceeds, like 

 another lobe ; the second joint is 

 very short, the third double the 

 length of the second, and the fourth as long as the other two together. 



The maxilla (fig. 2b) is unilobed, sharply pointed, with a flat surface in the 

 middle, fringed with hairs on either side. The mandibles (fig. 3) are very large and 

 slender, each with the apex divided into two very strong and very sharp hooked 

 teeth, the upper being the longest ; there is also a blunt tooth about half way 

 between these and the base of the mandible. 



The mentum (fig. 4) is balloon-shaped, broadly rounded in front, and constricted 

 Rt base, with a strong fringe of incurved hair on each side M'ithin the outer edge : 



