194 RHOPALOCERA. 
Hab. Norra America, Sierra Nevada!2.—Mexico, Milpas in Durango (Forrer), 
Cordova and Jalapa (Hége). 
Mexican specimens agree very closely with Californian, offering no tangible differences 
by which to separate them. All our examples are fairly constant in their characters ; 
but a specimen from Milpas in Durango, sent us by Mr. Forrer, is more fulvous above 
than any of the specimens from Cordova &c. 
P. orseis is closely allied to P. pratensis of California, so much so that some authors 
treat it as a variety of that insect?. As our Mexican specimens agree with the true 
P. orseis rather than with P. pratensis, we place them under the former name. 
8. Phyciodes thebais. (Tab. XXI. figg. 13,144, 15 @.) 
Phyciodes thebais, Godm. & Salv. P. Z. S. 1878, p. 267°. 
Alis fuscis, maculis sordide albidis notatis, in posticis fasciam mediam curvatam formantibus ; subtus P. orseidi 
simillimus. 
Obs. A P. orseide maculis alarum paginz superioris pallidis nec fulvis, colore quoque fulvo posticarum fere 
absente distinguendus. 
Hab. Muxico, Oaxaca (Fenochio1); Guatemata, Duefias | and Volcan de Fuego (/. D.G. 
& O. S.), Calderas, Chilasco (Champion). 
This species belongs to the same group of the genus as P. pratensis, Behr, and is 
closely allied to P. orseis, Edw., of California, itself considered by some American 
writers to be but a variety of P. pratensis. From both these forms the males of 
P. thebais can be recognized by the spots being much paler and, as a rule, smaller. 
There is too in the males hardly a trace of the band of fulvous on the secondaries, 
which is conspicuous in P. orseis, and includes a row of black spots. ‘The females in 
all these forms are practically undistinguishable. Of the first specimens we obtained 
of P. thebais, one came from Oaxaca, and another from Duefias in Guatemala; since 
then Mr. Champion has sent us a good supply of specimens, mostly taken at Calderas, 
on the slopes of the Volcan de Fuego, at an elevation of about 7000 feet; other 
specimens were obtained in Vera Paz, in the high mountain-district above San 
Gerénimo. 
We have figured Calderas specimens, in fresher condition than either of the types. 
9. Phyciodes boucardi. (Tab. XXI. figg. 16, 17.) 
Phyciodes boucardi, Godm. & Salv. P. Z. S. 1878, p. 268°. 
P. orseidi similis, sed minor, alis magis rotundatis et maculis ad basin alarum magis distinctis ; subtus alis undique 
ochraceo-fulvis, posticis fere unicoloribus lineis indistinctis notatis, macula ad medium marginis externi 
fusca, maculis argenteis P. orseidis absentibus. 
Obs. Quoad staturam et formam alarum P. vesie similis, sed colore posticarum pagine inferioris differt. 
Hab. Mexico, Putla (Rébouch 1), Cordova (Riimeli). 
This is one of a group of small species having a general resemblance to P. pratensis 
