420 C. SKOTTSBERG 



Tetramorium guineense Fabr. Probably of African origin, now pantrop.; in 

 hothouses in the temp, region. 



T. simillinmm F. Smith. As the former. 



Plagiolepis niactaznshi Wheeler. Formosa, Hawaii, Society Is. 



Pre7tolepis bourbonica Forel subsp. Skottshergi Wheeler. The typical species 

 known from Chagos, Nicobar and Seychelle Is., and E. Afr., Pemba I. Other 

 subspecies in Ind., Comoro Is., E. As., Philipp. Is. and Hawaii. 



Ants are easily carried about by man. but it seems likely that Easter Island 

 also has indigenous forms. 



Vespidae [206). 



Polistes hebraeus F. E. Afr., Madag., Ind., China; Tahiti.^ 



Hemiptera [21). 



Clerada apicicornis Sign. Wide-spread, introduced. 

 Redmnoliis capsiformis Germ. As the former. 



MoIIusca [i8g). 



Liuiax arborum Bruch-Chant. Cosmop., introduced. 



Milax gagates Drap. As the former. 



Melainptis philippi Kuester. Peru. 



+ i]/. pascus Odhner. The genus distributed over the Pacific from Hawaii 

 to N. Caled. S. Amer. 



Torjiatellinops inipressa Mouss. (Syn. Pacificella variabilis Odhner I.e.). Dis- 

 tributed from Fiji to Easter Island. Perhaps introduced with living plant material. 



The fauna, as known hitherto, presents the same picture of extreme poverty 

 as the flora, and even if future researches will double the number of species and 

 reveal the occurrence of groups not yet recorded, a considerable portion will con- 

 sist of late immigrants. The known endemics are very few and one or two of 

 them questionable, and our experience from the old list of Juan Fernandez Diptera 

 [8^ bodes no good for the single endemic genus. Altogether half a dozen en- 

 demic species and some endemic forms of lower category have been described, 

 and of the species found elsewhere some are, perhaps, indigenous. An example 

 of remarkable discontinuous distribution is offered by I\Ie/anozosterm pinlpottt. 

 New Zealand and Easter Island; possibly it will be discovered in intermediate 

 stations, but such stations are difficult to find in other cases where Easter Island 

 is the terminus: Anisolabus Borniaiisi, Galapagos Islands -f Juan Fernandez, Cliry- 

 sopa lanata. South America and Hawaii, Ponera trigona, America, and IlaplotJirips 

 notaitis, Hawaii. A direct overseas transport is not very probable, and I cannot 

 tell if these animals are likely to have been introduced with the traffic. 



