418 



DR. H. BURMEISTER ON A 



before the end, is a very short and thin point. Between the two 

 prominences on which the antennae are placed, is an impressed 

 angular line, starting from the anterior base of each eminence, 

 and emitting posteriorly, from the angle, another, short impressed 

 line, which becomes evanescent between the eyes. This trans- 

 verse line separates the small clypeus, of the same angulated figure, 

 which has its anterior margin likewise angulated, supporting the 

 soft (not horny) white upper lip, which is rather broader than 

 long, and emarginated in the middle of the free margin. On the 

 sides of this upper lip, next to the antennae, the mandibles are 

 conspicuous as two strong horny hooks of very dark colour, with 

 a thin but very acute curved tip and a small angular tooth in the 

 middle of the inside. Beneath the mandibles are situated the 

 maxillae, united with the intervening under lip, into a strong 

 horny plate, divided by two ridges into three parts (fig. 3, 

 magnified). 



Of these three parts, the lateral ones are the broadest and 

 longest, representing the trunks of the maxillae, broadest at the 

 base, narrowing to the tip, where there is a small cylindrical ap- 

 pendage, which appears to be the maxillary palpus, formed of a 

 single great joint, united to the maxilla by a small and soft white 

 ring, which, judging by analogy from the antennae and the labial 

 palpi, may be the first joint of the maxillary palpus. At the 

 other end there is also a soft white convex surface, which seems 

 as though divided by a circular impression in the middle into 

 two joints- — a small circular one in the centre, and a larger annular 

 one around it. If we look upon these two white parts of the tip 

 of this curious maxillary palpus as two different joints, the palpus, 

 including the white ring at the base, will be four-jointed, as is 

 usual in Coleopterous larvae. Behind this must have been con- 

 cealed the internal jaw of the maxillae, which I did not see, as it 

 was much retracted in the interior of the mouth during the life 

 of the animal, and I was not able to make a better examination 

 after the death of the creature, having unfortunately lost it. 



The smaller piece between the two trunks of the maxillae, is 

 the mentum of the under lip, a triangular scale, with the pointed 

 end behind, and the base in front. At this end are attached 

 the three-jointed labial palpi, and between them the very small 

 oval tongue or ligula. Each palpus has, like the antennae, 

 a soft white basal joint, and two slender horny joints, the last 

 being a very thin point at the end of the palpus. The ligula be- 



