OF WASHINGTON. 7 



In 1887 the National Museum already possessed a good collec 

 tion of Haploa, and since that time much additional material has 

 been received, so that all the known forms are represented, many 

 of them in long series. It appears from these that there are but 

 five species, as I tentatively concluded in 1897. 



The Haploas present some interesting features. One species 

 is practically without variation. Though its pattern of markings 

 is a slight modification of the one which in another species is 

 highly variable, yet here it is fixed. This is clymene Brown. 

 Another species, also very constant, nevertheless shows some 

 tendency to the breaking down of the dark markings, so usual in 

 the genus. This is contigua Walker. Confusa is more variable 

 and lecontei still more so. 



This latter runs from a fully-marked form to a white immacu 

 late one, with, occasionally, some production of the buff color. 

 Colona is the most variable species, changing not only from fully 

 marked to immaculate by gradual obsolescence of the markings, 

 but also from white to buff in the color of the hind wings, with 

 all combinations of these characters. 



The matter is made more obscure by the tendency of the 

 Haploas to occur in more or less isolated colonies, which usually 

 breed true to a certain type, often considerably more restricted in 

 its variation than the species at large. This gives the false im 

 pression of a larger number of species than really exists, and 

 makes the correlation of some of the forms difficult. The pat 

 tern of markings is essentially similar in all the species, and neither 

 the male genitalic characters nor the larvae seem to show any 

 strong differential points at times where such would be useful in 

 the separation of the species. 



The peculiar extensile, inflated and annulate anal tubes of the 

 male moth, bearing a terminal tuft of yellow hair, described by 

 Siewers and quoted by Smith, are well shown in a specimen or 

 clymene before me, and partially in a male of colona. 



1. H. clymene Brown. 

 interruptomarginata de Bauv. 

 comma Walk. 



This form has the markings of H. lecontei, var. harrisii nov. 

 (described below) , a little thickened and rounded and with buff 

 hind wings ; but it is perfectly constant and unmistakable, 

 needing no discussion. 



2. H. colona Hubn. 



Carolina Harr. 



a. reversa Stretch, 

 suffusa Smith. 



b. consita Walk, 

 lactata Smith. 



c. fulvicosta Clem, 

 duplicata Neum. and Dyar. 



d. triangularis Smith. 



