1871.] DR. A. GUNTHER ON A NEW SPECIES OF TEJUS. 541 



Genus 5. Pyrisitia, Butler, 

 Cist. Ent. iii. p. 44. gen. 17, pi. 1. f. 14 (1870). 



1. Pyrisitia proterpia. 



Papilio proterpia, Fabricius, Syst. Ent. p. 473. n. 152 (1775). 

 Mexico; Haiti; Polochic valley ; Venezuela. B.M. 



2. Pyrisitia gundlachia. 



Terias gundlachia, Poey, Mem. Hist. Nat. de Cuba, p. 246. n. 4, 

 pi. 24. f. 1-3 (1851). 



Nicaragua; Venezuela; West coast of Mexico. B.M. 



3. Pyrisitia longicauda. 



Terias longicauda, Bates, Ent. Mo. Mag. i. p. 32. n. 13 (18G4). 

 Guatemala. Coll. Salvin. 



6. Description of a New Species of Tejus (Tejus rufescens) 

 from Mendoza. By Dr. A. Gunther, F.Z.S. 



[Keceived May 17, 1871.] 



The Society has recently purchased five living specimens of a 

 Tejus, said to have been brought from Mendoza, which differ from 

 the two species previously known in several respects. 



With regard to the general form, proportions of the several parts, 

 and arrangement of the scutes and scales, this Lizard agrees so well 

 with T. teguexin and T. nigropunetatus that I may dispense with a 

 detailed description, pointing out only those peculiarities in which 

 it differs from the species named. I must remark that the pho- 

 lidosis is the same in all the five Mendoza specimens which I ex- 

 amined. 



On all parts of the body the scales are considerably smaller than 

 either in T. teguexin or T. nigropunetatus. This is especially con- 

 spicuous on the temple, where the scales are reduced to the size of 

 granules. The number of transverse series of scales is about one- 

 fifth more than in the other species. A stripe of minute scales be- 

 tween the supraciliary shields and supraciliary edge. A doublet 

 series, each row formed by five larger scales, above the temple. 

 Only one single mental shield behind the middle lower labial. Pos- 

 terior part of the tail scarcely compressed, much less so than in T. 

 teguexin. Blackish brown, with brownish-red or brownish-yellow 

 markings. These markings are in the form of irregular transverse 

 spots on the back, more distinct on the neck, but mottled with brown 

 on the trunk and behind. An interrupted yellowish band proceeds 

 from the tympanum along each side of the neck to the shoulder, 

 where it is lost among the markings of the body. Tail with the 

 alternate black and red rings rather indistinct. Lower parts brownish 



