175 



cieut to hold these two genera apart ; at the most they can 

 only be regarded as sub-genera. 



1. N. freyclnetiae Kirk. 



Unfortunately Kirkakly chose this extreme form as the 

 type of the genns; both in general build and in genitalia it 

 departs from the other species very considerably. 



No spines on anal segment, anal segment long, smaller at base 

 than apex; a large spine on each lateral edge of pygophor and two 

 small curved ones, with bases contiguous, on medloventral edge; 

 styles small with rounded apices slightly curved inward, broadest at 

 base, outer edge nearly straight, inner edge slightly emarginate on 

 apical half; aedeagus tubular, curved, with several large spines on 

 apical half and one on right near base. 



PL 2, fig. 16. 



2. N. giffardi Kirk. 



This is a development of the Lcialohd group, somewhat near to 

 L. lehuae : the styles are less sickle-shape, the basal portion being 

 straighter, the aedeagus long, slender, tubular, slightly curved in 

 middle, the crook at apex large, curved and bearing minute spines, 

 the spine on right side below apex large; the apex is produced into 

 a rounded knob; anal spines short, stout, laterally flattened, curved 

 inward. 



PL 2, fig. 7; PL 3, fig. 59. 



3. N. elaeocarpi Kirk. 



Styles near to those of giffardi, but slightly more curved, aedea- 

 gus stouter, especially toward base, crook slightly flattened and broad- 

 ened at apex, spine on right large, another spine at apex curved down- 

 ward. 



PL 2, fig. 8; PL 3, fig. 57. 



4. N. eugeniae Kirk. 



Styles more curved than in elaecocarpi, especially at apex; aedea- 

 gus slender, crook large with small spines, spine on right large, a 

 small, stout spine at apex; anal spines stout, convergingly curved but 

 not greatly flattened laterally; pygophor somewhat diamond shape, 

 the anal segment closely inclosed by pygophor. 



PL 2, fig. 9; PL 3, fig. 60. 



