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mal cardo and distal stipes ; the inner branch has two 

 gnathobases, a blade-like lacinia and a softer galea ; the 

 outer branch is a sensory, five- jointed maxillary palp. 



The 2nd maxillae have the basal pieces united to form 

 the lower lip or labium, which consists of an upper sub- 

 mentum and a lower mentum bearing the two inner and 



Mandible 



Labial palp 



/ 2nd Maxillae 



fused together, 



forming the labium. 



Fio. 27. Mouth-parts of Cockroach. 



the two outer branches. The inner branches are similar 

 to those of the 1st maxillae, and together constitute the 

 ligula. The outer branches are sensory, three- jointed 

 labial palps. 



Name the Parts of the Cockroach Leg. 



A thick flat coxa which articulates with the sternum, 

 a very small trochanter, a stout femur, a slender tibia 

 set with spines, and a six -jointed tarsus or foot. The 



