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RE VISIONAL NOTES ON AUSTRALIAN CARABID^. 



By Thomas G. Sloane. 



Part iii. 



Tribes Oodini, Chlaeniini, and Sphodrini [Coleoptera]. 



Introductory note. 



Attention may be drawn to some features which have hitherto 

 \yeen overlooked, or have had but little attention given to them, 

 as far as the Carabidce are concerned. 



(1) Basal hair-fringe of proihorax. — Frequently the basal 

 socket-hole of the prothorax, to receive the peduncle of the body, 

 is fringed with hair both above and below the peduncle (e.g., 

 Caremi^m, Mystropomus, Hyperion); often only the upper part of the 

 socket-hole is fringed(e.g.,C'«r«6zts, Paniborus, Delinius, Chlcenius); 

 sometimes the base is not fringed, either above or below (e.g., 

 Teropha, Secatophus, Eurylychnus, Oodes). 



{^) Infiexed margins of elytra when in repose, enveloped by 

 the outer margin of the metasternal episterna. This is the 

 usual form in the Carahidce, but in the Ozsenini, Helluonini, and 

 Brachynini the margins of the elytra are not so supported or 

 held in position by the margins of the metepisterna. 



(3) Ventral segments bordered at sides. This is the usual form 

 throughout the Carahidce, but in tlie tribes Ozteuini, Helluonini, 

 Brachynini, Miscelini, and Pericallini; and the genera Acrogenys, 

 Lachnothorax Stricklandia, and Pogonoglossus, tlie ventral seg- 

 ments are merely roundly reflexed, without a border at sides. 



(4) Tactile setce of intermediate coxce. — The intermediate coxae 

 among the Carabidce usuall}' bear two tactile setee, and may 

 therefore be called bisetose, One of these setse is placed on the 

 lower face of the coxa, between the inner side of the coxa and 



