312 



The Large Poplar Longhorn 



the pupa of the male, the antenna usually curls forward to the base of 

 the femur of the first pair of legs ; in the case of the female the antennae 

 curl forward to the apices of the tibia (d) of the first pair of legs and lie 

 alongside the tarsi (t) (Fig. 13). 



Attached to the prothoracic segment (pr) is the first pair of legs, 

 which are folded underneath the body (Fig. 11), and show the typical 

 parts, coxa (n), femur (/), tibia (d), the tarsus (t). 



Fig. 11. Pupa of S. carcharias, female, side view (greatly magnified), a . = antenna; 

 rf = tibia of leg; e = elytra; es = eighth tergite; ei=eighth sternite; ey = eye ; / = femur 

 of leg; ft = first tergite; gr = gena; lp = labial palps; m= mandible; ms = mesonotum; 

 m£ = metanotum; w = coxa; nt= ninth sternite; p = maxillary palps; pi = ]a,hrum; 

 pr=pronotum; s= spiracle; t = tarsus; v = vertex of head; w = wing; 2 = hind leg. 



The mesothoracic segment (ms) bears the elytra (e) or wing-covers. 

 These lie between the body and the first two pairs of legs, and extend in 

 a postero-lateral direction, their tips lying directly underneath the body. 

 The mesothoracic segment also bears the second pair of legs. The meta- 

 thoracic segment (mt) has attached to it the wings (to), which are 



