32 Mr. G. R. Waterliouse on Coleopterous Larva. 



lour ; the former is furnished with two stemmata on each side, near 

 the insertion of the antennae. Body soft, the colour varying in dif- 

 ferent individuals, sometimes white, and at others purple, but al- 

 ways thickly covered with brown hairs. The mesothorax and me- 

 tathorax each with two pitchy black coriaceous patches on each side 

 of the centre. 



Length A^ — 5 lines. 



Head subrotundate, slightly rugose above. Antenna short. Pal- 

 piger and labial palpi very minute, the latter 2-jointed. Man- 

 dibles short and stout, unidentate internally. 

 Body elongate, slightly depressed, and furnished with a coriaceous 

 bifid telum. 



2 a. The larva, magnified. 2 h. Tlie under side of the head. 2 c. The 



mandible. 2 d. The telum. (Newm.) 



This larva is not uncommon during the winter months in the bark 

 of elm-trees ; it is evidently very closely allied to that of Dasytes 

 and Opilus : to the larva of Telephorus it also evinces a slight affinity. 



QuEDius TRisTis, Gvav. 



Larva and Pupa. Plate III. fig. 2. 



Head and prothorax coriaceous, and of a deep jDitchy black co- 

 lour. Mesothorax and metathorax subcoriaceous, yellowish white. 

 Abdomen soft, of a pale brown colour above. 

 Length 6-^ — 7 lines. 



Head subquadrate, depressed. Antenna: 4-jointed, the basal joint 

 short; second and third rather elongate ; terminal joint slender 

 and acute. Mandibles long and acute, simple. Labrum trans- 

 verse, furnished with numerous tubercles. Labium minute. 

 Labial palpi 3-jointed. Maxill(E tlon^dite and slender, furnished 

 with a single lobe internally. Mao'illary palpi 4-jointed, basal 

 joint short; second and thu'd moderate and nearly equal ; ter- 

 minal acute. Prothorax quadrate, rather narrower than the 

 head. Mesothorax and metathorax transverse, and nearly equal 

 in width to the prothorax ; abdomen with all the joints equal 

 in length, (taken longitudinally of the insect,) excepting the 

 telum, which is elongate and furnished with two caudal pro- 

 cesses, which are rather short. 

 In the pupa the parts are soldered together ; the abdomen is 

 straight ; the head and prothorax are suddenly bent forwards, the 

 former touching the body. 



2 a. The larva, magnified. 2 h. Tlie under side of the head, at large. 2 c. The 

 mandible. 2 f/. The maxillae. 2 e. Thepalpiger. (Newm.) 2/. The labrum. 

 2 g. Antenna. 2 //, Telum, showing the caudal processes, 2 i. The pupa. 



