28 



Praesternal shield present; anal 



shield truncate anteriorly . . . L. lobatus Klti. 

 Without praesternal shield; anal 



shield rounded anteriorly . . . L. lepidopeltis Klti. 

 Peritrema reaching coxa 2; dors. 

 shield not narrower toward the 



10 ' middle L. lacertarum (Cont.) 



J Peritrema passing coxa 1 ; dors. 



( shield narrower toward the middle L. saurarum Oudms. 



7. Spinturnix Yespertilionis (L.) 



With Plate II, fig. 35—43; III, fig. 44-48. 



Synonyms : 



? 1728. Fledermaus-Laus. Frisch, Beschreib. Ins. Teutschl. v. 7, 

 p. 12, n°. VII, tab. VIL 



? 1741. Pediculus vespertilionis. Linn. Faun. Suec. p. 475, n°. 1941. 



? 1744. The louse of a bat. Baker, Employm. Mier. 2d. Ed., p. 

 406, t. 15, f. e— g. 



? 1 758. Pediculus vespertilionis. Linn. Syst. Nat. Ed. 10. 



? 1761. Pediculus vespertilionis. Linn. Faun. Suec. Ed. 2. n°. 1951. 



? 1763. Acarus vespertilionis. Scop. Carn. p. 387. n°. 1058. 



? 1768. Acarus vespertilionis. Linn. Syst. Nat. Ed. 12, n°. 9. 



? 1775. Acarus vespertilionis. Fabr. Syst. Ent. p. 812. 



1776. Acarus vespertilionis. Goeze in Berl. Besch. p. 259, t. 7 

 f. 3, 4. 



? 1781. Acarus vespertilionis. Fabr. Sp. Ins. v. 2, p. 487, n°. 15. 



? 1787. Acarus vespertilionis. Fabr. Mant. Ins. v. 2, p. 373, n°. 19. 



? 1792. Acarus vespertilionis. Oliv. Encycl. Méth. v. 7, p. 689. 



? 1794. Acarus vespertilionis. Fabr. Ent. Syst. v. 4, p. 429. 



? 1798. Acarus vespertilionis. Schrank. Faun. Boic. v. 3, p. 207. 



With the discovery of so many species in the genus Spinturnix 

 v. Heyden, I was anxious to know which species ought to be 

 named vespertilionis. The descriptions of Frisch, Linné, Baker, 

 Scopoli, Fabricius, Olivier and Schrank, and the drawiugs of 

 Frisch and Baker are too vague and too bad to recognize one 



