88 The Graspedosomatidse of North America. 



specimen of Pgeromopus which is known with certaint}' to have 

 been taken on the hills back of Saucelito, across the Golden Gate 

 from San Francisco. 



Notes on Exotic Craspedosomatid^. 



As likely to be of interest in connection with a study of the 

 American forms, we add brief notes on the other genera and 

 species, as far as they have been described sufficiently to state 

 the more important characters, 



RHISCOSOMA Latzel. 1884. 

 Myr. CEst. Ung. Mon. Zweite Halfte, p. 173. 

 Eyes distinct, ocelli numerous ( 11 ) . 



Antennae moderately long, rather slender, slightly clavate, fifth joint long- 

 est. 



Segments above strongly arched, with large, continuous carinas which are 

 decurved in the direction of the dorsal arch; setigerous tubercles very small. 



Distr-ibution : Anstro-Hungary. 



This very curious genus was described from individuals sup- 

 posed to be immature, with 23 segments, and measuring 3.5 mm. 

 by .6 mm. The carina are so large as to reach down to the ground 

 when the animal is crawling, so that the animal is hollowed 

 out below. The resemblance to a Polyzonium is very great. 



ATRACTOSOMA Fanzago, 1876. 

 Annuario d. Soc. d. Naturaliste in Modena X, p. 70. 



Eyes distinct, of numerous ocelli (25-29) arranged in triangular or semi- 

 circular patches. 



Antennae A'ery long and slender, third joint longest. 



Segments with lateral carinae large, horizontal, rounded in front, hooked 

 behind; setae rather long. 



Seventh segment nearly normal. 



First two pairs of legs small and slender, the next five pairs strongly eras- 

 sate in the male. 



Legs 3-7 of male with a very short claw, the ventral face of the last joint 

 hispid. Coxa of seventh leg with a conic process. Genitalia of male complex, 

 of three pairs of lamellae. 



Ninth legs of male simple, oblong (cf. Verhceff). 



Tenth and eleventh legs of male with a wart-like process on the coxa, the 

 terminal joint somewhat hispid. 



The above characters are drawn from Latzel's description of 

 A. meridionale Fanzago, the tjq^e species. 



