18 Transactions of the SocieUj. 



mencinff anteriorly, are, first, the rostrum, which bears two longitu- 

 dinal ridges commencing close to the above-named pomts, but 

 sometimes a trifle nearer the lateral margin; the second division 

 extends from the rostrum to the insertion of the first pair ot .egs 

 and has a central shield-sliaped space on the dorsal surface enclosed 

 by a raised ridge, against the front of which the ends of the betore- 

 named longitudinal ridges abut. A smaller space, narrower m 

 proportion, on the slope of each side, is also enclosed by a ridge. 

 The third portion of the cephalothorax extends to the abdomen and 

 has a central octagonal space enclosed by a similar ridge, abutting 

 on the shield-shaped ridge anteriorly, and on the abdomen pos- 

 teriorly. On each side of the octagon is a rounded, somewhat 

 mamillar portion, bearing the stigma, which is dorsal, ihe stig- 

 matic organs (or hairs) are long, fiUform, rough, and smuous. ihe 

 interstigmatic hairs are apparently absent. 



The legs are rather short, of almost even thickness throughout, 

 rough, and with a projecting point on the front tibiae, which bears 

 a v?ry strong tactile hair. The other joints each have a pair ot 

 short, curved, spatulate hairs. The tarsi are short and thick, and 

 clothed with numerous fine hairs. , . i, n -i.^ 



The ahdomen carries the cast notogastral skins stretched quite 

 flat on the back, except that the edges of each skin have curled up 

 and form ridges, thus, in the full-grown nymph there are three 

 almost concentric ridges. Within the space enclosed by the inner 

 ridge— i e. upon the larval skin— are three hemispherical knobs, 

 arranged longitudinally. There are two projecting points at the 

 posteiior end of the creature, and of each cast skm, and each point 

 bears a long, spatulate, curved hair. , ^ , ^ , ., . 



The creature lives in decayed wood. I first found it m some 

 material brought from Yorkshire by the Eev. H. TattershaU, 

 and I have since found it myself in Hopwas Wood, near 

 Tamworth. 



