Male Genital Armature of the Dermaptera. Pari III. 5 



Chcetospania pittarellii Bor. 



Metaparameres broad and parallel-sided, abruptly narrowed at 

 the tips by the sinuation of the outer margin, the inner margin 

 straight ; virga long, with feeble basal vesicle and small chitin- 

 plates, inflated at apex ; one metaparamere decidedly shorter than 

 the other (PI. I, fig. 7). 



Chcetospania stiletta Burr. (S. India.) 



Metaparameres narrow, sinuate, and acute ; virga only a little 

 longer than the metaparameres, with basal vesicle (PL I, fig. 8). 



Homotages fese Borm. (N. India.) 



Metaparameres straight-sided, narrow, incurved and acute at 

 the tips ; sides of proparameres with spongy dilation ; virga short, 

 rather broad, with basal vesicle, terminating apically in a broad, 

 curved chitinous triangular tooth (PI. I, fig. 9). 



It is very interesting to note that the examination of the 

 genitalia leads us to place this genus definitely in the Labiidae. On 

 account of the shape of the forceps, de Bormans originally placed 

 it in the genus Anechura, since when it has wandered about in the 

 Chelisochinas and Forficidinse ; the non-dilated, simple and elongate 

 second tarsal segment should have warned me against that error. 

 The tarsi have the row of stiff bristles along the side of the basal 

 segment, as in Chsetospania, and the posteriorly dilated pronotum 

 is of a type which is predominant in the Chelisochinse and Labiinse. 

 The general form of the genitalia recalls that of the South Indian 

 Chietospania stiletta. 



Spongovostox assiniensis Borm. 



My mount, from a Kamerun specimen, is in erection, but 

 being rather heavily stained, the structure is rather obscure. The 

 metaparameres recall those of S. ruher, but the absence of the 

 lateral sponges of the proparameres is noteworthy ; the virga 

 seems to be moderately long, and is straight ; in the prseputial sac 

 there is a broad and hooked chitin-plate (PI. I, figs. 11 and 12). 



Spongovostox tripunctatus Bor. 



Metaparameres broad at base, rapidly narrowing by the con- 

 cavity of the external margin, acute ; proparameres with sponges ; 

 virga 2-3 times longer than metaparameres, straight, with a series 

 of chitin-plates in the prseputial sac. 



My specimen is from Kamerun, and is in erection (PI. I, fig. 13). 



