No. 2323. LARVAE OF THE CLERIDAE—BOVING AND CHAMPLAIN. 583 



median area of epipleurum. Postscutellum (pos) is of moderate size 

 and forms the membranous hind margin of the tergum. The Pre- 

 epipleuriim (pe) is large and carries on mesothorax the well devel- 

 oped first thoracic spiracle, on metathorax the rudimentary second 

 thoracic spiracle ; ventrally the preepipleurum is limited by that an- 

 terior part of the ventro-lateral suture which is found between the 

 lateral notch and the pleural notch, dor sally it is prolonged into a 

 preepipleural arm in front of tergum, ending at the dorsal notch. 

 The Postepipleurum (poe) is very large, triangular, adjacent to the 

 preepipleurum of the next segment along a vertical line from the dor- 

 sal to the lateral notch. The) Hypopleurum is identical with the 

 hypopleurum of the prothorax. The Presternum {pst) is present on 

 each side of the body as a triangular, large, swollen area, dorsally 

 indistinctly limited by the anterior part of the ventro-lateral suture 

 and more or less confluent with the preepipleurum and the ventral 

 corner of the alar area, ventrally reaching the ventral notch. The 

 Preeusternum and the Eusternum (^res and es) are fused and 

 in some forms, as Enoclej'us sphegeus, provided with a small, un- 

 paired sternal plate; the eusternal lateral arm is distinguishable in 

 most genera. The Sternellum is not present, its median part or 

 Mediosternellum possibly being fused with eusternum, its lateral part 

 or Laterosternellum with the large lobe, which carries coxa. The 

 Poststernellum (post) of mesothorax is, in genera as Enoclerus, sub- 

 triangular, large, even bidivided by a transverse line, but small in 

 genera as Monophylla; the poststernellum of metathorax is small and 

 developed as intersegmental membrane, with the sternal and ventral 

 notch connected and combined to an insignificant longitudinal deep- 

 ening. 



The Legs are five jointed, no free claws ; they are on all segments 

 inserted widely apart, all of same size and same form and the corre- 

 sponding articles, for instance all femora, are pointing in the same 

 direction ; they are medium sized, largest in comparatively free living 

 genera, as Cymatodera^ shortest in the white, vermiform genera, as 

 Orthopleura or Monophylla, which permanently live in the galleries 

 of their prey. No Trochantin developed in the skin around coxa. 

 The Coxa {cox) has a projecting condyle, is short, conical, with the 

 top obliquely cut ; its base is broad, oval with the long diameter point- 

 ing backwards and inwards ; the height of the outer coxal surface is 

 as large as the length of the mentioned diameter, the height of the 

 inner coxal surface four times shorter; the sizes of the anterior and 

 the posterior coxal surfaces are about equal. The Trochanter {tro) 

 is of medium size, with the inner and longer surface as long as the in- 

 ner surface of coxa. The Femur {fe) is, in the shortlegged genera, as 

 long as the long diameter of the coxal base, in the other genera twice 

 as long ; its dorsal side is convexly curved ; usually it is stretched for- 



