374 



Dr. r. Meinert on the Campodese, 



its sides; when seen from beneath, they appear only as two 

 small bodies at the sides of the lingua. The framework sup- 

 porting the maxillse and lingua is vei'y complete (see the annexed 

 figure), and in all essential points like that of Japyx. 



Fig. 3. 



a a,bb, c, principal parts of 

 inner framework supporting the 

 maxillse and lingua; d, inner 

 lobe of right maxilla ; e, outer 

 lobe, and/, palpus, of left max- 

 illa ; h, lingua ; i, paraglossae ; 

 k, stipes, and I, cardo, of right 

 niaxilla ; x x, pieces of frame- 

 work supporting lingua ; y b, si- 

 milar ])ieces supporting outer 

 lobe of maxilla ; z, ce, pieces 

 connected with the last, and 

 supporting paraglossae. 



The labium covers the organs of the mouth almost entirely, 

 so that ordinarily only their points are visible in front of it; 

 but, as stated before, they are capable of protrusion to some 

 extent, about so much that the lingua becomes visible. The 

 labium is deeply bifid, and each half is divided into two pieces 

 by a transverse groove (though less markedly than in Japyx) ; 

 from the hindmost divisions rise the short conical, hairy, labial 

 palpi, which near their apices each carry two long subuliform 

 setffi. The palpus is much less chitinized than in Japyx, and it 

 does not articulate properly with the labium. 



Behind the labium appear two oval, transversely placed pro- 

 tuberances like warts, on which from six to eight rows of rather 

 large depressions with small setse are observed — probably an 

 organ of sense affording a substitute for the absence of palpa- 

 rium on the labial and maxillary palpi. 



There is no mentum. The hypostoma varies in size, but is 

 generally only a small triangular plate near the posterior margin 

 of the head. 



The antennae consist of numerous rather long joints bearing 

 one or two circles of large setse, besides many smaller scattered 

 ones. In the Danish species I have counted from twelve to 

 twenty-six joints, often different numbers in the antennae of the 

 same individual. The joints are cylindrical, or slightly fusiform ; 

 the last but one is always the smallest, and the last the longest, 

 though the length of it varies so much that, in some individuals 

 of the Danish species, it is less than that of the two preceding 

 ones together, whilst in others it almost equals that of the four 

 preceding ones. 



