PARACOROl'OOA AKEIIMANI (waRREN). 823 



wliicli exudes from the body for the delectation of the 

 termites. 



Hypoderinal (Hands. — The foHowmg paired glands are 

 present: (1) mandibular, (2) cephalic, (3) tergal scent-glands 

 of abdominal segment VI, (4) sternal glands of abdominal 

 segment X, developed in the female, absent in male. No 

 trace of prothoracic glands such as those described by 

 Tragardh in Terrnitomimus could be found. 



The mandibular glands consist of a conspicuous mass of 

 large glandular hypodermal cells at the base of the mandible 

 and Isfc maxilla of each side. The gland appears to dischai'ge 

 its secretion through a soft spot on the cuticle lying im- 

 mediately between the bases of these appendages (PL XIX, 

 fig. 57, d. m.) . The nuclei of the glandular cells are particularly 

 large, and the absence of cell-outlines seems to be charac- 

 tei'istic. Very possibly these glands secrete a saliva-like 

 fluid which maybe taken up by the termites in exchange for 

 their own saliva. 



The cephalic glands are two dorso-lateral patches of hypo- 

 dermis consisting of tnll, gUindular cells which appear to 

 open by pores in the cuticle of the occiput immediately under 

 the overhanging pair of prothoracic swellings (PI. XVIII ; 

 and PI. XVII, fig. 36, gl. ep.). 



The two tergal glands of abdominal segment A^I consist of 

 a cluster of large, much swollen hypodei-mal cells which 

 discharge their secretion into well-defined, chitin-lined re- 

 ceptacles provided with a duct. They are so placed as to be 

 entirely inaccessible to the tei'mites, and as they are similar 

 in character to organs regarded as scent-glands in other 

 insects, we may reasonably assume that they produce a scent 

 agreeable to the termites. The secretion which is passed 

 into the receptacle is capable of coagulation and staining 

 (PI. XVI, fig. 19, g. v., and PI. XVII, fig. 37, R.). 



The sternal gland of abdominal segment X is probably also 

 a scent- gland, but since it is not present in the male we may 

 assume that it has a sexual function, and possibly it is of 

 use for sexual recognition. The glands consist of a pair of 



