32 NOVTTATES ZOOLOGICAE XXVI. 1919. 



the figure is that of a Castnia, but a rare form at present unknown in nature 

 to Lepidopterists, and most likely an aberration. 



Although Monsieur Houlbert separates mimon Hubn. from subvaria Walk., 

 placing them in two different .sections, their general facies is so similar that it 

 seems reasonable to suppose that they represent forms of one variable species. 

 Where orange forms are found we can very well have a yellow one. We submit 

 then, from these considerations, that whilst the name mimon Hiibn. ( = phalaris 

 Godt.) stands, the name phalaris Fabr. must also stand for the form figured by 

 Donovan. 



Further, it seems highly probable that phalaris Fabr. is a species comprising 

 the forms phalaris Fabr., mimon Hiibn., lombardi Le Cerf, mygdon Dalm., argus 

 Bdv., subvaria Walk., dionaea Hopff., albofasciata Schauf., and sora Druce. 



The albofasciata Schauf. must certainly be a $ form of phalaris. The 5 

 appears to vary in tlie amount of orange-red on the liindwing. There may be 

 none at all, or yeUowisli ^^hite edging to the white spots, merging into orange- 

 red in other examples. 



Another $ form of the phalaris group is represented by a specimen in the 

 Joicey collection without locality. It is of striking coloration, with the darker 

 ground-colour of sora stiU more increased especially on the hindwing, and with 

 intensified white bands on the fore^^■ing. 



We propose the name signata for this form, and Mi. L. B. Prout has kindly 

 appended a more detailed description. 



4. Prometheus garbei Foett. (p. 491). 



It may be interesting to record that specimens of this species exist in the 

 Adams collection in the British Museum. There are also 6 <Jo and 3 $? in the 

 Joicey collection from Rio Grande do Sul, Brazil. 



5. Tephrostola fenestrata Houlb. (p. 560). 



The figure does not differ at all from some of the specimens of gramivora 

 in the Joicey collection from Castro, Parana, and we rau.st consider it to repre- 

 sent, like pararta Strand, a simple aberration. 



6. Cabirus peruviana Strand (p. 575). 



The author is imable to confirm the identity of this form. There are two 

 females in the Joicey collection, one from Chanchamaj'o, and one from San 

 Joas, Solimoes Riv. These are easily distinguished from the other races by 

 their larger size, greatly enlarged hyaline areas, and by the very sparse dark 

 scaling on the veins of the discal area of the hindwing. 



It is interesting to note that the forms of this group of Gastnia exhibit the 

 same development of pattern as do the Ithomiine Rhopalocera with which 

 they are doubtless associated. 



7. Boisduvalia amazonica Strand (p. 598). 



There is a (J of this species in the Joicey collection which bears the locality 

 of "S. Paulo, Amazons, ex Stgr." 



