THE FIRST MAXILLAE 



63 



FIG. 52. A, pupa of 

 Phrygaitea pitow.-At- 

 ter Pictet. , mandibles 

 of pupa of Molanna angii- 



stntd. After sharp. 



joint or cardo, the second joint or stipes, with the palpi fer, the latter 

 present in Termitidse (Fig. 54, plpgr), but not always separately de- 

 veloped (Fig. 55). The 

 cardo varies in shape, 

 but is more or less tri- 

 angular and is usually 

 wedged in between the 

 siibmentum and mandi- 

 ble. It is succeeded by 

 the stipes, which usually 

 forms the support for 

 the three lobes of the 

 maxilla, and is more or 

 less square in shape. 



The three distal divi- 

 sions of the maxilla are 

 called, respectively, beginning with the in- 

 nermost, the 

 It ii' iiiia, galea, 

 and pal pi fer, 

 the latter be- 

 a lobe or 

 segment 



bearing the palpus. The lacinia 

 is more or less jaw-like and 

 armed on the inner edge with 

 either flexible or stiff bristles, 

 spines, or teeth, which are very 

 variable in shape and are of use 



mx.'p 



FIG. 51. Mandible of Erio- 

 cephala culihel.hi : a, a', inner 

 and outer articulation ; *, cavity 

 of the joint (acetabulum) ; A, 

 end seen from one side of the 

 cutting edge. After Walter. 



md 



FIG. 53. Pupa of Micropteryx purpuriella, front view: md, mandibles; mx.p, maxillary 

 palpus, end drawn separately ; m. 'p, labial palpi ; Ib, labrum ; A, another view from a cast skin. 



