THE BRITISH GEODEPHAGA. 23 



Fig. 9. — The same, dissected. 



a, Labrum, or lower lip. 



h, Mentum, or chin ; to which are attached — c, Ligula, or 

 tongue ; d.d, Labial palpi ; b to d together constitute the 

 Lower lip ; /./, Mandibles ; g, Inner or Palpiform lobes ; 

 h, Maxillary paljDus ; i, Lacinia, or blade ; k, Palpifer ; 

 I, Stipes, or stalk ; m, Cardo, or hinge ; g to m together 

 constitute the Maxillae. In this insect the Paraglossse are 

 not largely developed, and do not show in the drawing. 



,, 10. — Mouth-organs of Ocypus olens ; dorsal view. 



,, 11. — Ditto ditto ventral view. 



,, 12. — The same, dissected. 



«, Labrum, or upper lip ; h, Mentum, or chin ; c, Ligula, 

 or tongue; d.d, Labial palpi ; e.e, Paraglossae ; b to e together 

 constitute the Labium, or lower lip ; /./, Mandibles ; g, Inner 

 or Palpiform lobe; h, Maxillary palpus ; i, Lacinia, or blade ; 

 k, Palpifer ; /, Stipes, or stalk ; m, Cardo, or hinge ; g to m 

 together constitute the Maxillae. 



,, 13. — Mouth-organs of Cicindela maritima, dorsal view; mouth 

 closed as in repose. 



14. — Ditto, open. 



15. — Ditto, ventral view ; the labial palpi have been removed to 

 show organs underneath. One of the labial palpi is shown 

 at) ct. • 



16. — Mouth-organs of Cychrus rostratus, ^ , dorsal view; the Palpi 

 of the female are shown at a a. 



17. — Ditto, ventral view. The Palpi of the female are shown, 

 at a. a. 



18. — Mouth-organs of Leistrus spinibarbis ; ventral view. 



19. — Cliviiia fossor ; length, one quarter of an inch. 



20. — Mouth-organs of Clivina fossor ; ventral view, a.a, Mandibles. 



21. — Brachinus crepitans^ the Bombardier Beetle; length, one-third 

 of an inch. 



22. — Dromius quadrimacidatus ; length, two and a quarter lines. 



23. — Anisodactylus binotatus, S' ; length, five lines. 



24. — Mouth-organs of Stomis pumicatus, dorsal view. 



25. — Mouth-organs of Bembidium littorale. 



20. — Toothed Claws of — a, Calathns; b, Demet7'ias ; c, Pristony- 

 chus ; and d, Taphria. Notched Anterior Tibiie : — e, Bight 

 tibia, ventral view ; /, Left tibia, dorsal view. 



27. — Anterior Tarsi of the Males and Females, compared in — • 

 a, Loricera ; 6, Harpalus ; and c, Bembidiun}. 



28. — Leg of Amara communis, ^^ x 50. 



29. — One of the appendages (tenent hairs) in profile, X 300, 

 30. — Leg of Ptei'ostichus niger, ^ , x 25. 



