— 32 — 



The mature larva, 2nd larval stage (fig. 7 A), which I hâve 

 found 8/6—20/7, has been described by KLAPALEK (1). When 

 KLAPALEK distinguishes a ,, larva " which for one thing should 

 hâve the middle segments constricted, from a more barrel- 

 shaped ,, subnymph " this distinction cannot hold good. Accor- 

 ding to my cbservations the larva can be astonishing capable 



D 



Fig. 5. — Agriotypus armalus WALK. 



A. Egg. — B. Ist larval stage. — C. Head of this stage seen from above. 



D. Head from bslow. — (A and B enlarged X 50. — C and D X 100.) 



of changing shape; it can appear rather slender and fusiform, 

 it may be conic with the head end tapering and anal end trun- 

 cate, or the cône may be the reverse with anal end pointed and 

 head end truncate. The figures C and D of KLAPALEK thus can 

 not indicate two différent stages (though fig. D perhaps is a 

 little ycunger; the segments being a little longer relatively than 

 in fig. C) the apparently characteristic constriction being a quite 

 individual phenomenon, and the mouth parts figured in his 

 fig. F and stated to be those of the larva are identic with those 

 of the 2. larval stage, the subnymph of KLAPALEK, and not with 

 those of (our) lst larval stage. 



(1) Ent. Month. Mag., XXV, 1889, pp. 339-434. 



