478 



GEOGRAPHICAL ZOOLOGY. 



[part IV, 



Family 14.— PIEKID^. (35 Genera, 817 Species.) 



The Pieridae are distributed almost, if not quite, as widely over 

 the globe as the last family, and we shall group the genera in 

 the same manner. Pieris (130 sp.) is cosmopolitan ; Terias 

 and Callidryas are found in all the four tropical regions, and as 

 far north as Pennsylvania in the Nearctic region ; Pontia, 

 Tachyris, Eronia, and Thestias are common to the Ethiopian, 

 Oriental, and Australian regions, the last-named, however, 

 only extending as far as Timor; Colias is pre-eminently 

 Palsearctic and Nearctic, with a few Ethiopian species, one 

 Indian, two in Chili, and one in the Sandwich Islands ; Antho- 

 charis is wholly Palsearctic and Nearctic ; Midea has two species 

 Nearctic, and one in Japan ; Gonepteryx is Palsearctic and Neo- 

 tropical, extending into Texas ; Idmais and Callosune are 

 Ethiopian and Oriental ; Thyca and Iphias are Oriental and 

 Australian ; Meganostoma is Nearctic and Neotropical ; JUa- 

 thalis and Kricogonia are Neotropical, ranging into Florida, 

 Texas, and Colorado. 



The peculiar genera are pretty equally distributed. The 

 Neotropical region has ten, two being confined to Chili ; Euterpe 

 and Leptalis are the most remarkable, the latter containing a 

 number of forms mimicking the Heliconidse and Danaidse. The 

 Oriental region has two, Prioneris and Dercas ; the Australian 

 one, Elodina ; the Ethiopian two, Teracolus and Pseudopontia ; 

 the Palaearctic two, Zeucophasia and Zegris ; the Nearctic one, 

 Neophasia. 



