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XXXIV. Notes on the Thysanura. — Part II. By John Lubbock, F.E.S., F.L.S., 



F.G.S. 



Read June 19th, 18G2. 



SMYNTHURID^. 



1 HE Linnean Society has already done rae the honour of publishing some notes on the 

 much-neglected Thysanura. In the present paper I propose to place on record the 

 species I have met with since, and which are twenty in number ; these indeed do not, 

 in all probability, amount to one-tenth of those which will hereafter be discovered, but 

 it is at least something to have made a begianing. 



Papirius nigromaculatus, n. s. (PI. LIX. fig. 4). Yellow ; eyes, ocelli, and a black patch 

 on the posterior part of the back black. Large specimens are a little mottled on 

 the back with light brown, and on each side there is a pale band, which surrounds 

 the black patch, and then passes forwards and outwards. Legs and belly pale. 

 Antennae a little darker, except at the base. 

 Length ^th of an inch. 



Pound, in spring and summer, under dead pieces of wood in Kent. Common. 

 In the form of its different organs, this species much resembles P. Saundersii. The 

 two black spots, which I suppose to be ocelli, are more distinct. 



The antennse are very like those of that species. The mandibles have respectively 

 five and six teeth. 



The anterior legs and feet very closely resemble those of P. Saundersii, and the 

 posterior feet differ slightly, if at all. The filament (c), however, appeared to be shorter, 

 and the inner claw had only one tooth on the outer margin. StUl P. Saundersii itself 

 varies in this respect, and one specimen of the present species had a second very 

 minute tooth. 



The saltatory appendage offers no special peculiarity. 



Smtnthubus aureus, n. s. (PL LIX. fig. 1). Yellow, with black eyes. Antennse four- 

 jointed; basal segment shortest, terminal segment longer than the other three. 

 Under side of body pale ; saltatory appendage white. Body with a few scattered 

 hairs, which are longer and more numerous towards the posterior extremity. 

 Length 3~oth of an inch. 

 Pound in the same places as the last. 

 Common from Pebruary to June. 



The four segments of the antennse increase in length progressively from the base to 

 the apex, each being about twice as long as the preceding. The long apical segment 

 has whorls of short hairs, but no distinct evidence of segmentation. The eyes are 



