CHAPTER IX 



SUBFAMILY CALLIPAPPINAE 



The Marsupial Coccids 



The body of the adult female, as seen from the lateral aspect, is 

 strongly inflated. The cephalic portion is thin and bluntly pointed, the 

 caudal portion is much inflated or swollen and truncated. As viewed 

 from above, the body is more or less triangular in outline, with a de- 

 cided keel extending around the margin of the body, except across the 

 truncated caudal portion. The segmentation is distinctly indicated by 

 notches in the lateral rim or keel. The antennae are prominent, usu- 

 ally consist of ten segments, rarely eleven, and are articulated to thf 

 ventral aspect of the head near each lateral margin. The eyes are pres- 

 ent. There is a single globular ocellana located on each lateral margin 

 caudad of the articulation of an antenna. The mouth-parts, rostrum 

 and rostralis, are always wanting. The legs are present. They are 

 long and stout, subequal in length, and normal in form. The profemora 

 are never enlarged and the prothoracic legs are never fitted for digging. 

 The trochanto-femoral and tibio-tarsal sutures of all the legs are always 

 distinct. The thoracic and abdominal spiracles are not definitely de- 

 scribed and are not figured. The stigmatic clefts, spinae, and canellae 

 are wanting. The abdomen is deeply invaginated or retracted and only 

 the cephalic two or three segments are exposed, so that the head and 

 thorax together are several times as long as the a.bdomen. It is strongly 

 convex on the dorsal and ventral aspects and is never depressed. The 

 lateral margins bear a rim and the caudal aspect is broadly truncated 

 and bears a transverse slit, the entrance to the invaginated marsupium. 

 The abdomen is never provided with an anal cleft and opercula, an anal 

 ring and anal ring setae, or anal lobes and anal setae. The caudal 

 abdominal segment is not short and narrow and extending beyond the 

 other segments but is concealed in the marsupium. The body is sparse- 

 ly provided with cerores none of which are octacerores or pilacerores 

 and is never provided with ceratubae. The body is never enclosed in a 

 resinous cell with three adjacent openings or covered by a scale with or 

 without exuviae, but may be covered with a thin coating of powdery 

 wax and sometimes with a pad of wax between the sternum of the 

 thorax and the host-plant. The rectum is never provided with a long 

 glassy tube of wax or with a chitinized tube bearing rings of anacerores. 

 The body is never naked and gall-like in form. 



The female nymphs at least of the first stage are provided with a 

 rostrum and rostralis. The three pairs of legs are always present in 

 all nymphal stages so far as known and are similar in form. The profem- 

 ora are never greatly enlarged and the prothoracic legs are never fitted 



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