DERIVATION OF THE FLORA AND FAUNA 419 



Neuroptera (92). 



Chrysopa laiiata Banks. Wide-spread in S. Amer. and also found on Hawaii. 

 A wide-ranging genus of several hundred sp. 

 -<- Clir. Skottsbergi Msben-Peters. 



Lepidoptera (/J"). 



Agrotis ypsilo)! Rott. Cosinop. 

 Cirpliis Loreyi I)up. Widely distributed. 



Acliaea iiielictita Drur)'. On all islands in the Pacific and Indian oceans. 

 Pliytoiicira chalcytcs Es{). luir., As., most islands of the Pacific and Indian 

 oceans. 



It is not probable that any of these Xoctuidae are indigenous. 



Diptera {'S4). 



Sarconesicx clilorogastcr (Wied.). Chile, J. Fern. Introduced. 



-^ ^ Lip Sana iiisulae-pascJialis luiderl. 



Leptocera (Coprophila) ferruginaia (Stenh.) var. insulae-paschalis Enderl. The 

 typical species, known from Eur., Ind. and S. Amer., lives in horse-dung and 

 was spread with the horse. The variety was picked from the carcass of a sheep 

 and has, Enderlein remarks (I.e. 679), perhaps developed after the arrival in 

 Easter Island where, however, there are many horses. 



Coleoptera. 



Curculionidae {12). 



Aramigus Fulleri Horn. A noxious beetle, probably of N. Amer. origin, in- 

 troduced into many countries and on some isolated islands. 



■\- Pentarthriini paschale Auriv. 



Areocerns fasciculates Deg. Cosmop., introduced. 



Dytiscidae [2gg). 



+ Bidcssus Skoitsbergi ZxmniQrm. The occurrence of an endemic aquatic beetle 

 in the crater lake of Rano Kao among the endemic hygrophilous mosses is of 

 interest. 



Elate ridae [308). 



Simodactylus Dclfiui Fleut. Chile.^ Austral., N. Guin., N. Brit., Solomon Is., 

 Hawaii. 

 Stap Jiyliiiidae (.^f) . 



Philonthus longicornis Steph. Cosmop. 



Hymenoptera. 



Form icidae {28J). 



Ponera trigona Mayr. var. opacior Forel. N. Amer., W. Ind., Chile. The 

 typical species in Brazil, a subspecies in Austral. 



Cardiocondyla nuda Mayr. subsp. mimita Forel. Hawaii. The typical species 

 Ind., Ceylon, Austral., N. Guin. One subsp. is Mediterranean. 

 27* -557857 



