134 CLASS INSECTA. 



palpi are salient, and furnished with small spines. The 

 body is shorter than in the other genera of the same family, 

 with the articulations of the feet proportionally longer. 



The scutigera, which, according to these characters, form 

 the passage from the preceding family to this, are very agile 

 and often lose a portion of the feet when taken hold of. 



The species of our country conceals itself between the 

 beams or rafters of the scaffold-work of houses.* 



The Lithobii (Lithobius, Leach), 



Which have the stigmata lateral, the body divided, both 

 above and underneath into an equal number of segments, 

 each having a pair of feet. The upper plates are alternately 

 longer and shorter, as far as the posterior extremity. 



The forked Lithobius {Scolopendra forficata, Lin.), 

 Fab. De G. Geoff. Hist, des insect. II. xxii. 3. Panz. Faun, 

 insect. Germ. L. xiii. Leach, Zool. Misc. cxxxvii.-f- 



The others have at least twenty-one pairs of feet, and the 

 segments are, as well above as below, of equal size, and the 

 same number. 



The Scolopendra proper (Scolopendra, Linn.), 



Are those, which reckoning from the two feet coming imme- 

 diately after the two crotchets forming the external lip, 

 exhibit only twenty-one pairs, and the antennas of which have 

 seventeen articulations. They compose the genera Scolo- 



• The scoloptendra ivith twenty-eight feet, of Geoffroy, which appears 

 to differ from the S. Coleoptrata of Panzer, Faun. Insect. Germ. L. xii., and 

 from that of Linnaeus j lulus Ara7ieoides, Pall. Spic. Zool. IX. iv. 16.; 

 Scolopendra Longicornis, Fab. of Tranquebor. — See also Leach "Zool. 

 Misc., Cerinatia Livida, cxxxvi., and the 14th vol. of the Linnaean Trans- 

 actions. 



f L. Variegatus LcevUabrum, Leach, Trans. Linn. Soc. XL— See also the 

 third vol. of his Zoological Miscellany. 



