372 NEOTROPICAL PSELAPHIDAE 



Table XI 

 FAUNAL AFFINITIES OF BARRO COLORADO ISLAND 



Genus and Species 

 of B.C.I. 



Genus 

 Endemic 



Species of Genus in: 



Central Am. 

 Subregion 

 (Including 



BC.I./ 

 Excluding) 



South Am. 

 Subregion 



Antillean 

 Subregion 



Sebaga raffrayi "j 



Sebaga notonoda /-No 



Sebaga scydmaenilla } 



Jubus terranus \ 



Jubus chickeringi > No 



Jubus tumeri j 



Barrojuba albertae Yes 



Eurhexius zonalis No 



Thesiura barrocoloradoensis No 



Panaramecia williamsi Yes 



Barroeuplectoides zeteki Yes 



Verabarolus subdendrus Yes 



Trimiopsis furcalis No 



Eupsenina patricia No 



Reichenbachia fovearthra ) xt 



Reichenbachia stroheckeri j 



Xybarida nasicola No 



Berdura dentipalpa No 



Scalenarthrus undecimtympus No 



Xybaris funiculis No 



Drasinus cisinsularis No 



Decarthron chichion "^ 



Decarthron noctiphoton > No 



Decarthron euspinifrons / 



Barrometopia quasimoda Yes 



Arthmius sabomba No 



Oxarthrius sternadens \ -h^ 



Oxarthrius escharus j 



Euphalepsus panamensis No 



Dalmoburis petrunkevitchii No 



Batriphysis epicranis Yes 



Dalmonexus seeversi Yes 



Phybytharsis gambosis Yes 



Batrybraxis panamaensis | -kt 



Batrybraxis bowmani | 



Bibrax bradleyi Yes 



Neotyrus coptocolus I -kt 



Neotyrus harem j 



Juxtahamotopsis bardeni Yes 



Hamotus alleei 1 



Hamotus sandersoni ( j^^ 



Hamotus castanalus i 



Hamotus veracruzensis subsp. fletcheri. ' 

 Tyrogatunus zeteki Yes 



3/1 



5/2 



42 



though American, is seemingly evenly distributed between the northern and 

 southern subregions of the neotropics. 



From these considerations we conclude that the pselaphid fauna of Barro 

 Colorado Island is generically thirty per cent novel. By allowing 3 per cent 

 to each genus, then the fauna may be stated: 



