668 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.49. 



apically, the tip rounded and with a subapical construction and with- 

 out styles. These characters, which are unknown in any other specias 



except the one immediately follow- 

 ing, are shown at figures 9 and 10. 



CEUTHOPHILUS GENITALIS, new species. 



Description. — Head as broad as 

 the front portion of the pronotum ; 

 vertex with a very broad and but 

 little elevated tubercle ; last segment 

 of the palpi nearly twice as long as 

 the preceding one and cleft beneath 

 Fig. lo.-CEUTHOPmLus nodulosus. End of for most of its length. Pronotum 



THE ABDOMEN OF THE MALE TYPE. tit i i n i i 



slightly and gradually broadening 

 posteriorly, the lower margin of the lateral lobes very broadly 

 rounded, the anterior angle a little more rounded than the posterior 

 one; meso- and metanotum as broad as ^he pronotum but, with the 

 abdominal segments, tapering uniformly posteriorly; lateral lobes 

 descending scarcely lower than those of the pronotum, the lower 

 margins rounded. Abdomen with a few very minute inconspicuous 

 granular tubercules scattered sparsely over the dorsal surface, visible 

 only when examined under a lense; last dorsal abdominal segment 

 and the cerci of the male essentially as figured under C. nodulosus, the 

 preceding species, the anal segment a little more truncate apically; 

 the subgenital plate of the male is also practically like that of nodulo- 

 sus, being considerably constricted subapically, and then broadening 

 to an apically rounded slightly transverse plate which, however^ 

 instead of being entire as in nodulosus, is apparently divided for fuUy 

 half its length by a closed cleft, though this may be merely a fold, as 

 it is very obscurely visible in the unique male studied ; cerci of female 

 simple, closely segmented and tapering. Ovipositor of same length 

 as the ponotum, the inner valves armed apically beneath with teeth 

 three or more times as long as the median width and with a terminal 

 down-curved hook, the outer valves unarmed except with a terminal 

 up-curved hook. Legs short; femora without genicular spines; fore 

 femora about same length as the pronotum, armed beneath only with 

 a single subapical spine on the inner margin; middle femora about as 

 long as the anterior ones and very slightly more slender, armed beneath 

 on both sides with a few short spines; hind femora about twice as 

 long as the pronotum and stout, about one-third as broad basally as 

 the entire length, tapering to near the apex and armed beneath 

 on both margins in the female and on the inner margin in the male 

 with acute triangular sensations, the lower outer margin in the male 

 armed with four or five stout spines; the hind femora of the male has 

 several minute acute tubercles on the dorsal surface; fore tibiae 



