514 IV AR TRAGARDH 



small teeth far back, and that the top is only moderately 

 pointed. 



GAMASOIDES Berl, 



In 1882, G. et R. Canestrini established the genus Poecilo- 

 chirus for a nympha found on Harpalus, which they identified 

 with J. Mûller's Holostasjns fimetarius (1882, p. 58-59), 



No generic diagnosis was given, but the characteristics may 

 be briefly summed up thus : E pis t orna triangular, dentate ; a 

 stylet-shaped appendage attached to the upper jaw; sternal 

 shield with 4 pairs of large, conical, finely pointed bristles, 

 extending to the hind margin of coxae IV; anal shield small, 

 circular ; dorsal shield entire. 



To this genus they added another form, P. carabi, also a 

 nympha found on Carabus sp. This differs, however, in some 

 essential respects ; the epistoma is tricuspidate ; the dorsal 

 shield divided into two, the anterior one being the larger ; 

 and no bristles of extraordinary shape are found on the 

 sternal shield. The shoulder bristles are very long. 



The genus was consequently established on a form with one 

 dorsal shield. Nevertheless, Berlese, in 1892, makes the 

 following statement with référence to it : « Scutum dorsuale in 

 partes duas divisum ». To this he refers P. jucorum (De Geer), 

 which he identifies with P. carabi G. et R. Can, P. emarginatus 

 (Koch), and P. spinipes (Koch). For P. fimetarius, on the 

 other hand, which was the type of Canestrini's genus, he 

 established a new genus, Iphidosoma, to which he adds another 

 species, /. ovatiim. This genus he characterizes as foUows : 

 « Dorsum scutulo unico protectum. Chela digitus fixus apophysi 

 hyalina styliformi auctus. Corniculi labiales aliquando forci- 

 pem cum maxillarum malis interioribus sistentes ». 



Later, in 1906, Berlese abandons this view, and considers 

 Poecilochirus and Iphidosoma as synonymous, whence he esta- 

 blishes a new genus, Gamasoides, for P. carabi G. et R. Can. 



