The Graspedosomatidse of North America. 89 



Atractosoiua carpatliiciim Latzel. 



Seventh segment of male with the ventral margin produced into two long 

 slender teeth. 



Genitalia totally different from those of A. meridionale, of two pairs of la- 

 mellae. 



"Ninth legs of male very simple, reduced to a somewhat conic process with 

 an apical bristle. 



Atractosoma Iboltemiciiiii Rosicky. 



Anterior male legs with the terminal joint not cushioned or hispid. 

 Ninth male legs simple, without processes or teeth, their sternum also 

 simple. 



The North American Craspedosomatidae, as far as known, show 

 no close resemblances with the species of Atractosoma, either in 

 form of bod^^ or structure of genitalia and ninth male legs. 



CRASPEDOSOMA Leach and Eawlins, 1814. 

 Trans. Linn. Soc. XL 2, p. 380. 



Eyes well developed, of numerous (25-28) ocelli arranged in triangular 

 patches. 



AntenniB very long, slender, third joint longest. 



Segments rather depressed, with traces of obtuse carinse, especially in front; 

 tubercles and setae very small. 



Seventh segment ventrally inflated. 



First and second male legs small, the last joint fringed on the inner edge. 



Legs 3-7 of male scarcely thicker than the normal, the last joint pulvi- 

 nate.* 



Male genitalia of two imirs of processes, the larger simple, broad, the others 

 approximate, very slender. 



Ninth legs of male replaced by a pelviform structure with median pro- 

 cesses. 



Tenth and eleventh male legs with a verruciform process. 



Distribution: Man}^ species, reported from nearly all parts of 

 Europe. 



The above characters are drawn from Latzel's description and 

 plates of Gr. rawliiisii, the t3^pe of the genus. Numerous species 

 have been referred to Craspedosoma, many of them without 

 proper study of the secondary sexual characters, and without 

 giving them such systematic weight as thej'^ seem to us to be en- 

 titled. 



Among characters of this kind some of the more noteworthy 

 are as follows : — 



*Wliether these legs differ from those we have called hispid is not clear. 



