HARDWICKE'S SC IE N CE-GOS S 1 P. 



157 



The mandibles arc either not present or are very 

 obscurel J" represented, as will be noticed further on. 

 The paraglossae are, T believe, to be recognized under 



Fig. 103. Labrum from beneath, Fig. lOJ. Side view of ditto, 

 X 48— //n, lobes of ma.xillns. x 48. 



above parts in detail and in the order indicated, 

 taking first — 



I. The labrum, which consists externally of a 

 triangular horny plate terminated in front by two 

 fleshy pointed lobes ; it is situated immediately 

 beneath a snout-like process in which the rostrum . 





Fig. 10". Fig. 108. 



Fig. 107. Group of minute spines from terminaljoint of palpi, 

 X 210. 



Fig. 108. Section of Rostrum inline shown by fig. 106, x 24 — 

 rm, roof of mouth ; fm, floor of ditto; pp, processes 

 attached to lobes and mentum respectively. 



Fig. 106. Longitudinal section of head and mouth, x 2i—pJi, Pharynx; .erf, salivary, duct;— rest of lettering as before. 



the altered designation of the lobes, though I have 

 not seen this formally so stated, and shall be glad to 

 be confirmed in my opinion if correct. The labial 



?ig. 105. Articulation at base of lobes, x 120, p process; pi, 

 plates to which muscles are attached. 



palpi and the tongue are absent, unless a minute 

 projection in the floor of the mouth, where the sali- 

 vary duct enters, may represent the latter organ. 

 I will now endeavour to describe each of the 



Fig. lOp. Process of lobes with Fig. 110. Process of men- 

 muscles attached — mm, those turn with muscles attached 

 connecting it with back of to maxillse, x 24. 

 head, x 24. 



