CHILOPODA. 



603 



with an inter- 



over the first postcephalic tergum. Tropical and warmer temperate 



zones. Pithopus Poc. Asanada Mein. Pseudocryptops Poc. Cu- 



pipes Kohlr. Colobopleurus Kraep. Cormocephalus Newp. Scolo- 



pendra L. (Fig. 361). 



Fam. 3. Craterostigmidae.* With 15 pairs of legs 

 calated tergite in front of the 3rd, 5th, 7th, 8th, 10th, 

 and 12th and stigmata on the 3rd, 5th, 8th, 10th, and 

 12th pedigerous segments. The anus and genital 

 openings are enclosed by a bivalvular sclerite. The 

 sternite and pleura of the 14th pedigerous segment 

 are completely fused, as are the sternum, pleura and 

 tergite of the 15th. With one ocellus on each side. 

 Tasmania. Craterostigmus Pocock. 



Fam. 4. Lithobiidae. With 15 pedigerous segments, 

 and tergites and sternites equal in number ; tergites 

 of the 2nd, 4th, 6th, 9th, llth, and 13th pedigerous 

 segments smaller than their neighbours ; stigmata on 

 the 3rd, 5th, 8th, 10th, 12th, and 14th pedigerous seg- 

 ments, and sometimes on the 1st ; the tergite of the 

 1st segment not unusually large ; anal and genital 

 zones well marked off from one another, the latter in 

 the male with more or less reduced, in the female with 

 powerful, segmented and spurred generative processes. 

 Anal legs longer than the others. Tarsal joints 3. 

 Cosmopolitan. 



Sub.-fam. 1. Cermatobiinae. Body slender and 



fusiform ; antennae flagelliform, shorter than 



body ; eyes in one pair ; palp of 2nd maxilla 



3-jointed with claw ; stigmata in 1st pedigerous 



segment. The minor tergites are deeply excavated 



behind and appear to be divided. Island of 



Adenara (Indo-Malaya). Cermatobius Haase. 



Sub-fam. 2. Lithobiinae. Antennae fairly long but shorter than 



body, 13-100 joints; ocelli absent, or one pair, or numerous; palp 



of 2nd maxilla 3-jointed with claw ; stigmata in 6 or 7 pairs. 



The minor tergites" less excavated behind and do not appear double. 



Lithobius Leach (Fig. 357), many species, cosmopolitan. Henicops 



Newport, Tasmania, Australia, N. Zealand, N. America. 



FIG. 361. Scolopen- 

 dra morsitans 

 (from Claus). 



Tribe 2. NOTOSTIGMA 



With tracheal openings in the dorsal middle line and with compound 

 eyes. The number of sternites exceeds that of the tergites. 



Fam. Scutigeridae. Body short and thick, with 15 pairs of legs 

 (Fig. 362), long and increasing in length posteriorly. Antennae long, eyes 

 compound (one pair), 1st maxillae with a sense organ beset with numerous 

 rods, 2nd maxillae 5-jointed without claw and with spines on each segment 

 except the terminal. The tergite of the poison claw segment visible but 

 small. On the 15 pedigerous segments there are 8 distinct tergites, the 

 tergites of segments 7-9 being fused and those of 2, 4, 6, 11, and 13 being 

 very small and covered. The tracheal stigmata are 7 in number and 



* R. I. Pocock, A new and annectant type of Chilopod, Q.J.M.S., 45, 

 1902, p. 417. 



