172 Annals Entomological Society of America [Vol. VI, 



consider it generically different from Palpares, Palparellus 

 was made by Navas for P. spectrum, but P. ovampoanus con- 

 nects this group with the section of P. flavofasciatus, 



Golafrus was made for P. oneili on account of the emargi- 

 nation at base of the fore wing. I suspect this character exists 

 only in the male sex, besides P. ojieili is otherwise related to 

 P. radiatus. 



If these names are to be used for subgenera, others should 

 be created for other sections or groups. In the appended notes 

 I have given certain facts regarding the anal vena:tion which, 

 although not sufficiently different to divide the genus, are 

 fairly constant for each species. The color of the legs is val- 

 uable, and I tabulate the black and pale legged species below. 



The color of the vertex and the presence of spots on thorax 

 and on abdomen are also very useful. The point of origin of 

 the radial sector in the fore wings is also useful; in P. libellii- 

 loides it is as far basad as the cubital fork, in many other species 

 it is plainly beyond this point. 



The palpi are variable in length according to the species; 

 in P. libelliiloides the last joint of the maxillary palpi is much 

 longer than the space between the eyes, in P. speciosus, P. 

 m,oestus etc., it is shorter. The male appendages also vary in 

 length, but little in structure; in P. speciosus and allies they 

 are very short, in P. tigris very long and with a basal tooth. 



The markings of the wings, although variable in develop- 

 ment, are extremely useful, especially the shape of the apical 

 marks. It is doubtful if the character of median band across 

 hind wing is of specific value. The size of species does not 

 vary much, but the width of the hind wings does vary to some 

 extent in the same species. The width of the face between the 

 eyes is very narrow in Palparellus and the flavofasciatus group, 

 in others wider. In the table I have placed a number of 

 names as synonyms, based (in most cases) on my examination 

 of the types, but I am quite certain that a still greater number 

 should also be placed as synonyms, or at most varieties. All 

 the species allied to P. speciosus are probably but forms of 

 that species, for the marks are all on the same plan and the 

 male genitalia the same. Likewise several species will later 

 fall under P. tristis as collections are more extensive. 



P. cognatus Rbr I have not seen, nor been able to place it; 

 its habitat is unknown. 



