JOUENAL 



OF THE 



ROYAL MICROSCOPICAL SOCIETY. 



FEBEUARY 1882. 



TEANSACTIONS OF THE SOCIETY. 



L — Further Notes on British Orihatidse. 

 By A. D. Michael, F.L.S., F.K.M.S. 



{Eead lUh December, 1881.) 



Plates I. and IL 



Since my last communication to this Society, I have continued my 

 observations upon the life-histories, and general habits of the 

 native species of Orihatidse, and also my collection of these minute 



EXPLANATION OF PLATES I. and IL 



Plate I. 



Fig. 1. — Scntovertex maculatus, adult- x 100. 

 2. — The same, nymph. 



3. — The same, adult ; a, stigma ; h, stigmatic argan. x 370. 

 4. — The same, adult ; «, portion of maxillary lip ; b, palpus, x 370. 

 5. — The same, adult ; mandible, x 370. 

 6. — Cepheus ocellatus, adult. X 80. 



7. — The same, nymph, nearly full grown ; showing larval and two 

 nymphal cast notogastral skins, the bordering scales of the 

 existing skin not having yet passed far beyond those of the 

 former skin. 

 „ 8. — The same, adult; a, stigma; h, stigmatic organ; c, wing of the 

 tectum ; d, terminal spine of same ; e, hair set in at commencement 

 of spine ; /, portion of the tectum, x 170. 

 „ 9. — The same, adult ; the mandible, x 370 (reversed). 



Plate IL 

 Fig. 1. — Damceus monilipes, adult, x 160. 

 « 2. — The same, nymph, full grown ; showing the larval and two nymphal 



cast notogastral skins. 

 ■^, 3. — The same, adult ; a, stigma ; b, stigmatic organ, x 350. 

 „ 4. — The same, adult ; a, portion of maxillary lip ; b, palpus^ with 5th 



joint reflexed. x 450. 

 „ 5. — The same, adult, 1st leg ; a, coxa ; b, trochanter (so called) ; c, femur 



(so called) ; d, enlarged tibia ; e, tactile hair on same ; /, tarsus ; 



g, monodactyle claw. 

 1, 6. — Notaspis lacustris, adult. X 105. 

 ■,, 7. — Notaspis licnophorus, adult, x 180. 

 1) 8. — The same, adult ; a, stigma ; b, stigmatic organ, x 570. 

 Ser. 2.— Vol. n. B 



