The Graspedosomatidae of North America. 4Y 



specimens, since it is extremelj^ liliely, to judge from the Indiana 

 material we have studied, that Mr. McNeill's numerous specimens 

 represented more than one species. 



In addition to that of the ninth leg, Mr, McNeill gives a figure 

 of the genitalia. In his explanation this is said to be plate xii, 

 figure 5. This figure bears no resemblance to the genitalia of 

 Chordeumidse, but has evidently been transposed with figure 5 of 

 the preceding plate, which we here reproduce (fig. 150). It so far 

 resembles figure 147 as to make its specific distinctness a matter 

 of doubt. The resemblance between figures 150 and 138 is more 

 striking. Figure 138 represents a specimen collected at Wash- 

 ington, D. C, which would give the species a considerable range, 

 leaving it entirely probable that it may be found in Alleghany 

 county. Pa.; thus the question of what Gleidogona csesioannu- 

 lata really is seems likely to be settled in one of two ways. 

 Either we must retain McNeill's form as representing the species 

 because he was the first to describe it in a tangible way, or we 

 must find by collecting what species is found in the indicated part 

 of Pennsylvania. The only clue seems to be the size. The Indi- 

 ana material we have seen is onh' 14-16 mm. long. If there 

 should prove to be one species in Alleghany count}^ ' about an 

 inch ' in length, we must call it csesioannulata. In the meantime 

 species indicated by McNeill should have the use of the name 

 unless a new one is to be made. 



The Washington, D. C. specimens (figs. 138-143) diff'er some- 

 what in the shape of the gentitalia and ninth legs of male, espec- 

 ally in that the distal joints of the latter are in the Washington 

 specimens short and thick, while those of figure 145 are the long- 

 est we have seen. Notwithstanding, there is not the same neces- 

 sity of distinguishing the forms specifically as appears in the 

 other species in which the genitalia are so different as to leave no 

 room for doubt. 



Cleidogona major sp. n. 



Plates VI and VII, figures 110-137. 



Eyes triangular, the ocelli in transverse rows as follows: l+7-|-6-[-5+4+ 

 3+2-1-1=29, in oblique rows: 1+1+2+3+4-^5-^6-^7= or in vertical rows: 

 8+6+5+4+3+2+1. 



Male genitalia (figs. 128-130) with anterior arm much curved at base, 

 nearly straight at apex and bilobed, but not deeply as in C csesioannulata ; 

 apical sinus broad and rounded (cf. fig. 129, an apical view). On the anterior 



