36 Mr. Butler's Brrhinn of Gmrra of 



GENUS -21. DKHCAS. E. Diwhlnht^,. 



(leu. Diuru. Leiud, p. 7(t (1847). 

 ■ FJiodoen-d, Volleuhoveu. 



Tucludes 2). J^rr/n>rIlii,Gohrins,i\ud WkHIcIiH. ' 



GKNUS 2-2. KIMCOGONIA. Jierd-iti. 



I'roc. Eut. Sue. I'hil. 2, p. :Vu> (1863). 

 lucludes A". Lf/fiidc and allie.s. 



t;EXUS 2-i. ^rEGONOSTOMA. j;.'a/.-irf. 



Proc. Eut. Soc. Phil. 2, p. 356 (1863). 

 A good genus including tlie Co?sonia group of the old 

 genus Colias. 



GENUS 24. CALLIDRYAS. r.,us,h,ral. 



Le]). Am. Sept., p. 73 (1820). 



Type C. Enhidc. Linuiieus. 



Murtia, Catopsilia, and Phcehis, HiiLn. 



Hlibner previously characterized this genus under three 

 different names, biit the name Callidrijas having Ijeen so 

 long in use for so large and widely distributed a group 1 

 do not think it at all desirable to change it: of the names 

 used by Hiibner, 3Iurtia is too close to a genus of Criixfacca, 

 Catopsilia is not unlike Uafops and Fhcehis is too near to 

 Fha'he subsequently used in Colcoptcra ; in the latter case 

 of course the Coleopterous name would liave to be altered, 

 but considering all things 1 think it liest for us to retain 



GENUS 25. PTYC'HOrTEllYX. JFaUcngrcn. 



Kongl. Svensk. Vetensk.— Akad. Handl., p. 17 (1857). 



Ofvers, Kongl. Vetfui.^k.— Akad. Forhandl., ]x 77 (1858) 

 as Tlicspia. 



Dr. Felder considers this genus identical with Teracohis 

 Swains., but, if I have rightly understood Dr. Wallengren's 

 description, it is distinct. 



GENUS 2fi. TERACOLUS. Swainson. 



Zool. 111., 1st S., pi. 115 (1833). 



A])hrvdif(\ ILiibu. : 6V///o.s/^j;r, Doubl. ; Idnxfis, P)oisd. ; 

 Antiiopsyclic , Wllgr. 



This genus Avill iiudude the whole of the s]ie('ies hitherto 

 referred to Idiii(n>i \\m\ Cnlloii'unc: I can fiiul no constant 



