MEYRICK— TORTRICINA AND TINEINA 265 



Tinea Linn. Cosmopolitan ; three of the four endemic species are nearly allied 

 together, and related to a peculiar Indian group. 



These amount to 11 genera, with 31 species. All are probably derivable from the 

 Indian region except Oinophila ; this last appears to be characteristically Mascarene. 



3. APODEMIC GENERA OF 14 ENDEMIC SPECIES. 



Metachanda Meyr. The only other known species at present are two from 

 Mauritius. 



Hieroxestis Meyr. Represented by several Indian species and two or three from 

 Africa and Mauritius. 



These 2 genera, containing 28 endemic species, nearly a third of the total number, 

 are so evidently at home that it is not unreasonable to regard them as truly endemic 

 in origin, the few apodemic species having spread from this source. 



4. Endemic genera. 



Herpystis Meyr. E,elated to the cosmopolitan Eucosma ; one species. 



Chanystis Meyr. A development of the characteristic Seychelles genus Metachanda, 

 from which it does not greatly differ ; two species. 



Platactis Meyr. Not obviously near any other ; one species. 



Paraclada Meyr. Possibly related to the Indian Hermogenes ; one species. 



Anachastis Meyr. Allied to the Indian and African Odites ; one species. 



Mastigostoma Meyr. A singular form, allied to the apparently cosmopolitan 

 Setomorpha ; one species. 



Progonarma Meyr. Probably related to the preceding ; one species, found also in 

 the Car-ajos Islands, but probably derived from the Seychelles. 



Sporadarthra Meyr. A singular development of the cosmopolitan Tinea ; one 

 species. 



Scalmatica Meyr. Allied to Amydria, which is widely distributed, but perhaps 

 commonest in South Africa ; one species. 



These 9 genera contain 10 species ; their affinities may be Indian or African, but 

 do not display any obvious leaning to one or the other. 



General Results. 



Summarising these particulars, we find as the main factor in the situation an ancient 

 but highly specialised fauna, represented by the Metachandidce (2 genera, 1G species) 

 and the Hieroxestis group of Tineidm (2 genera, 19 species); a similar, quite distinct 

 fauna, based on the same groups but somewhat more primitive in character, is found 

 in Mauritius and Reunion, and doubtless something analogous will be found in 

 Madagascar, of which nothing is known at present. All the rest of the fauna might 

 apparently have been derived sporadically from the Indian region, except two or three 

 forms more probably originating in Africa, immigration having taken place at intervals 

 through a long period of time, but having now long ceased (for all recent introductions, 

 where the specific forms are unchanged, are probably artificial). 



34—2 



