IDMTIFICATION 



Males ; This handsome species is easily recognized and readily 

 distinguished by the following combination of characters: (l) center 

 of subanal shields posterior of central axis of adanal shields, (2) 

 scuttnn regularly covered by deep, rather large punctations that 

 often tend to obscure the long lateral grooves, and (3) distinctive 

 narrowing of the scutal margin posterior of the lateral grooves, 

 giving it a rectangular outline posteriorly, 



A moderate amount of circumspiracular pilosity may in some 

 specimens suggest H. rufipes . The festoons are more or less fused, 

 but the central an^ two median pairs are always distinct. The 

 scuttm is dark reddish brown to black and the legs are brightly 

 ringed. The comparatively narrow, elongate scutal shape is in 

 contrast to the wide outline of H. rufipes ; the rectangular pos- 

 terior margin is distinctive of ^, impressum. 



Females ; Numerous, regular scutal punctations, similar to 

 those of the male, are distinctive; in some specimens they are 

 more superficial but still numerous. The genital apron is broad- 

 ly triangular in outline; it is composed of an anterior narrowly 

 transverse (bulging) ridge and a posterior button (sloping or 

 depressed) not so wide as the anterior ridge. ^With respect 

 to the outline and profile of the genital area of this species, 

 no specimens observed during the present study conform to that 

 illustrated by Delpy (l%9B, page 106), which is more narrowly 

 triangiiiar (equilateral) and gradually sloping in profile .7 A 

 certain amount of circumspiracular pilosity is present in some 

 females; differences in the genital aprons distinguish these 

 specimens from females of H. rufipes , the scutal pvinctations of 

 which may be quite similar~to those of H. impressum . 



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