375 



f////ioc/ifhoiniis j-iif)i/iis (\ ]j. Kocli. 



1835. y/i//JocA//(0)K'((.s nt/»/».v, C. L. Koch, Crust. Myr. .\racli., Heft .3, Tab. 19. 

 1855. LeIxoiiKi oirila, Nicolet, Arch. Mus. Pari.s, 1. VII., p. S95, PI. II., Fij;. 5 



(Nymph). 

 18SS. IliipochlhnnUta rnfiilns, Michael, Brit. Orili , V<,l. II., p. .VM. I'l. XIJX., 



Fig. 6-i:!. 

 1898. Ilijiiiirhllitiiiinx riifiiliiti, Michael, Das Tier., Lief. '.I, ]>. 77. 



Body reddish; legs brown. 



Cephalothorax very long, two thirds as long as the abdomen. 

 Pseudostiginata short, oylindrical; pseudostigniatic organ long 

 and recurved, with a row of long teeth on the anterior side; a 

 pair of long bristles, almost as long as the pseudostigniatic or- 

 gan itself, in front of the pseudostigmata; palpi very prominent 



Abdomen broad, divided by a transverse suture into two 

 equal parts; flattened at the sides, forming blades which extend 

 almost the entire length of the abdomen; many large bristles. 



l.egs short, stout, and snbe<|ual; segments cylindrical. 



Length, 0.()6 mm.; breadth, 0.40 mm. 



Collected by the writer at Areola, 111. Two specimens. 



Family ilUi'LODElLMID.'E. 



Cephalothorax hinged to the abdomen and capable of 

 lieing folded down upon its ventral .surface so as completely 

 to hide the legs and mouth-parts; body generally compressed 

 no trachea^ present; mouth-parts large, mandibles powerful 

 legs stout, never with swollen or moniliform segments 

 cephalothorax frequently w-itli a median carina. 



Uenus HopLODERMA Michael. 



Oenital and anal openings situated together but with their 

 covers separate; ventral plate small or rudimentary; ungues 

 monodactyle. 



Two species: 



Total length of body not over O.GO mm sphariila. 



Total length of body over 1.00 mm dasiipm. 



