LAEVAL FOEIkTS OF COLEOPTERA 



Ketinaculum with posterior margin serrate ; urogomplii conical 

 and simple ; labial palpus with apical joint securiform. 

 (Head small, body broad and oval) 



Cychrinae (Cychrus, Maroneies, 

 and Sphaeyoderus) 



10. Two claws of equal size 11 



One claw 13 



11. Collum indistinct; epicranial suture absent or indistinct; man- 



dible, except in Remhus, with serrations, crenulations, or 

 with a few denticulations at least on retinaculum and often 

 also on inner edge in front of retinaculum. (Urogomplii 

 often of unusual shape ; distal joint of labial palpus rather 



thick and conical 12 



Collum distinct and broad ; epicranial suture distinct ; retinacu- 

 lum, and usually the whole inner edge of mandible, entire 16 



12. Antenna not twice as long as mandible. (Urogomplii either 



thin and stiff with a few seta-bearing tubercles, or very long, 

 rolled up like a spring, and divided into a large number of 

 minute pseudojoints as in Chlaenius ijrasinus Dejeaii and 

 other species of Chlaenius) 



Chlaeniinae (Oodes and Chlae- 

 nius) 

 Antenna at least twice as long as mandible. (Urogomphi either 

 movable, long, straight, and pubescent as in Panagaeus, or 

 immovable, slender, curved toward each other, and pubescent 

 as in Dicaelus, or, immovable, nodose, and with a number of 

 long setae as in several genera) 



Licininae (Remhus, Dicaelus^ 

 Licinus, Badister, and Pana- 

 gaeus)^'' 



13. Galea with proximal joint shorter than, or as long as, the distal 



one. (Ocelli usually six on each side ; in Trechus, only three, 

 the two anterior coalescent; in Anophihahnus, none.) 



Bembidiinae {Asaphidion, Bem- 



hidion, Cillenus, T achy s , 



Tachyta, Anophthalmus, and 



Trechus)^^ 



Galea with proximal joint longer than the distal one 14 



^^ Panagaeus has been given many different places in the classi- 

 fication of the imagines, for instance, close to the Chlaeniinae or 

 near the Benibidiinae, but according to the larva its systematic 

 position is in the Licininae. 



^® AnopJithahnus and Trechus, according to the larvae, definitely 

 belong in this subfamily and have no connection with the larva of 

 Patrobus which, as mentioned above, is very similar to Pterostichus. 



21 



