596 MR. LUBBOCK ON THE THYSANURA. 



Templetonia nitida {Podura nitida, Templeton). Templeton's description of this 

 species {I. c. p. 94) is as follows : — " Body obovate, smooth, shining ; head globular, 

 a little produced anteriorly ; eyes reddish brown. Thoracic and abdominal rings 

 pale, with innumerable reddish-brown streaks and spots, especially basally, and two 

 or three strong hairs in the middle ; a collar of similar hairs encircling the neck, 

 and minute ones over the whole body. Antennae and legs pellucid. 

 " Length "09 inch. Common at Cranmore, in the grove." 



This species I have found in Kent, several times during the spring, though never in 

 any great numbers. Wlien alive, they were silvery white, so that at first sight they 

 might easily be mistaken for specimens of Z. argentatus ; when, however, they had been 

 for some few days ia spirits of wine, the reddish spots mentioned by Templeton made 

 their appearance. 



ISOTOMA. 



IsoTOMA PTILIGINOSA {Fodura fuUginosa, Templeton). Templeton's description of this 

 species is as follows : — " Body subcyLindric, greenish black. Head subtriangular. 

 Antennae not much longer than the head ; joiats nearly equal. First thoracic ring 

 much larger than the succeeding ; third abdominal also very large ; a black line 

 down the middle of the back. Legs short, tapering, pale greenish. 

 " Length -05 inch. 



" A few specimens at Cranmore, under the bark of a rotten tree." 

 My specimens did not exactly agree with this description. Mr. Templeton seems to 

 me to have misunderstood the structure of the thorax, as the mesothorax is larger than 

 the following segment, and the prothorax is scarcely visible from above. The abdominal 

 segments in my specimens were less unequal ; they had bluish lights ; the antennae were 

 dark ; and there was no black line down the middle of the back. The length of the head 

 was only -rooths, while that of the antennse was -g^ths, or nearly double ; but this pro- 

 portion does not differ much from that shown in Templeton's figure. The first and third 

 segments of the antennae also are rather shorter than the second and fom^th. The salta- 

 tory appendage was white ; but I hesitate, in spite of these differences, to form a new species, 

 looking rather upon my specimens as a dark variety. The feet had sometimes one, some- 

 times several, tenent hairs. The caudal fork was short, and did not reach nearly to the 

 ventral tube. 



January to April. 



I did not find them very often, but generally in considerable numbers. 



IsoTOMA Anglicana, u. s. (PL LIX. fig. 8.) Colour purpUsh greenish brown. Eyes 

 on a black patch. Under side of head and thorax the same tint as the back, but 

 slightly paler. Anterior abdominal segments browner ; saltatory appendage gra- 

 dually passing into white towards the extremities. A few scattered pale spots, and 

 one or two pale lines, along the side. Basal segment of the antenna rather shorter 

 than the other three, which are nearly equal in length. Body covered with short 

 hairs and some longer setae, especially on the thorax and the posterior abdominal 

 segments. 



