30 RF.V. J. E, HULL ON 



45. Tarsolarcus articulosus, S. Th. 



North Wales (Aberglaslyn, Capel Curig — Dr. 

 Jackson). 



D.— Sub-family Rhaphignathinas. 



Mandibles external, styligerous. Epimera disjunct. 



1. Dorsum concave, fore margin, 4-lobed ... Bryobia. 

 Dorsum more or less convex ... ... ... 2 



2. Palp 4-jointed Tetranychus. 



Palp 5-jointed 3 



3. Rostrum retractile ... ... ... ... Cryptognathus. 



Rostrum not retractile ... 4 



4. Dorsum areolate ... ... ... ... ... Rhaphignaihus. 



Dorsum not areolate ... ... ... ... Stigmceus. 



CRYPTOGNATHUS, Kramer, 1879. 



Rostrum exposed or not, with a basal transparent 

 collar. 



Type : lagena, Kramer. 



46. Cryptognathus lagena, Kr. 



Dorsum punctate and reticulate. Bright red. 

 Ireland. 



RHAPHIGNATHUS, Duges, 1824. 



Legs short. Tarsi 2-clawed. Cuticle areolate. 



Type : piger, Schrank. 



I. Areolations round or oval ... ... ... pat Hits, 



Areolations angular (mostly pentagonal) ... sphagneti. 



47. Rhaphignathns patriuSj'Qexl. ^ 350 /x., $ 520 /x. 



Lancashire (Southport, in moss — Dr. Chaster). 



48. Rhaphignathus sphagneti, sp. nov. 67 



Bright red. Length of $ A2>°l^'> ? ^ ''ttle larger. 

 Body strongly shouldered ; areolations polygonal ; 

 dorsal set?e long, rodlike, very slightly thickened 

 apically, minutely spiculate. 



West Allendale, in sphagnum. 



