112 W. J. HOLLAND. 



Note. — I follow recent writers in restoring the name given by 

 Cramer to this species. The name Plexippus is properlj' applied to 

 the North American species commonly known as Archippiis. This 

 latter name was applied by Fabricius to the North American species 

 in 1793, w'hereas Linnaeus had already described and named it 

 Plexippiis as fur back as 1764. 



Genus SAL,PI]VX Hiibu. 

 5. Salpinx Negleyaiia n. sp. pl. i, fig. 2. 



% . Uppkr surface. — Fore wings deep black, reflecting brilliant 

 blue, crossed upon the outer half by three rows or bands of spots. 

 The inner band is greatly curved and consists of five purple spots, 

 often pupilled with white. The uppermost of these spots is small and 

 circular, situated on the costal margin a little beyond the middle, the 

 remaining four are oblong, and are grouped in pairs, the first pair at 

 the end of the cell, one spot on either side of the first discoidal ner- 

 vule, and the lower pair below the cell ; one spot on either side of 

 the second median nervule not far from its origin ; a submarginal 

 row of from seven to eight oblong white spots shaded inwardly with 

 blue extends across the wing parallel to the external margin ; and is 

 in turn followed by a marginal row of minute white or bluish white 

 spots disposed in pairs, a pair on each intra-neural space. These 

 marginal spots are in some specimens more or less obsolete. Hind 

 wings deep brown at base and u])on the discoidal area, widely testa- 

 ceous upon anterior margin and broadly fuscous on exterior and pos- 

 terior margins. A broad oval spot of luteous covers the upper half of 

 the cell near its extremity and the anterior margin of the wing ; in 

 addition there is a submarginal row of obscure white spots, of which 

 the three nearest the external angle are the most conspicuous, and a 

 marginal row of small white spots sometimes very distinct, sometimes 

 altogether obsolete. 



Under surface. — The under surface is uniformly dark fuscous, 

 except on the basal half of the posterior margin of the primaries, 

 which is grayish luteous. The spots are as on the uj^per surface, but 

 uniformly grayish white, more clearly defined and smaller than on 

 the upper side save the spot above the sexual mark, which is large 

 and broad. A number of minute white spots appear at base of both 

 wings. Head, patagia and under side of thorax spotted with white. 



2 . — The female does not differ from the male except in the form 

 of the wings characteristic of the genus, and in the absence of the 

 sexual mark of the primaries and of the luteous marks of the upper 



