CICINDELA. 



319 



Mexico, and the Central- American region as far as Hon- 

 duras (inclusive) : about one hundred species. 



3. The Palsearctic region, including Europe, Palsearctic Asia, 



Japan, and the north of Africa : about seventy species, 

 some of which are extremely variable. C. hybrida, L., for 

 instance, as at present constituted, includes twenty-two 

 subspecies and varieties, while 0. camjpestris, L., includes 

 twenty, and C. germanica, L., twelve. 



4. The Indian region, including the whole of the region with 



which we are dealing in this work, and also the western 

 part of the Malay Archipelago, as well as Siam, Tonkin, 

 Southern China, and the Philippine Islands : about one 

 hundred and seventy-five species, of which about one 

 hundred and ten occur in our region. 



5. The Australian region, including Australia, New Zealand, 



New Guinea, and the adjacent islands : about sixty 

 species. 



6. The ^Ethiopian region, including Africa (except the circum- 



Mediterranean region) and the adjacent islands, especially 

 Madagascar : about one hundred and thirty species. 



Various attempts have been made towards some sort of classifi- 

 cation of this mass of species belonging to one genus, upwards of 

 six hundred in all, but up to the present time with very unsatis- 

 factory results, as, whatever characters are adopted, there are 

 always intermediate forms. 



The following groups are those which have been adopted by 

 Dr. Horn, and I am chiefly indebted to him for the arrangement 

 and the leading characters. The table I have added myself ; it is 

 necessarily artificial and, in several points, unsatisfactory, and I 

 should prefer to do without it, but it may serve as a help to the 

 identification of the species : — 



I. Pubescence of underside, as a whole, weak, or partially or even 

 entirely absent. 



i. Hind portion of the elytra more obliquely sinuate before 

 apex, sometimes strongly produced ; length 7^-12 mm. 



Group 1, p. 323. 



C. ganglbciueri, dormeri, ivaterhousei, willeyi. 



ii. Hind portion of elytra rounded or less obliquely sinuate. 

 1. Intermediate tarsi dilated in the male; length 9-10 mm. 



Group 4, p. 336. 



C. tetrastacta. 



2. Intermediate tarsi not dilated in the male. 



A. Margins of elytra brilliantly and broadly metallic; 

 length 8-12 mm Group 2, p. 327. 



C. chloropleura, viridicincta, azureocincta, venus. 



