Scarabeeidce.] LAMELUOORNIA. y 



I. Abdominal spiracles situated in the membrane 

 connecting the dorsal and ventral corneous 

 platen, the last one covered by the elytra. Ligula 



always separate from the raentum SCABAB.EIDJB LAPAHOSTICTI. 



II. Abdominal spiracles in part situated on the 

 superior portions of the ventral segments, the last 

 one usually visible behind the elytra ; the rows of 

 spiracles feebly diverging. Ligula sometimes free, 



usimlly connate with the mentum SCARAB.EID.E MBLOLOXTHIXI. 



III. Abdominal spiracles (except the anterior ones) 

 situated in the dorsal portion of the last ventral 

 segments, forming rows which diverge strongly ; 

 last one or two spiracles usually visible behind the 



elytra. Ligula always connate with the mentum . SCAKABIDJB PLKTTBOSTICTI. 



SCARABJEID.E IAPAROSTICTI. 



The British species belonging to this division may be separated into 

 the following tribes : 



I. Abdomen with six visible ventral segments. 



i. Intermediate coxae longitudinal, very widely distant ; scntellnm 



hidden or almost hidden COPRIMA. 



ii. Intermediate coxaa oblique, not or scarcely distant; scutelluin 

 distinct, sometimes very lurge. 



1. Antennae with nine joints; epimera of metasternum covered APHODIIXA. 



2. Antennae with eleven joints ; epimera of metasternum free 



at apex GEOTBTTPIICA. 



II. Abdomen with five visible ventral segments TROGINA. 



COPBINA. 



The species belonging to this tribe are round or oval, and often very 

 convex ; they are very easily known by their linear and longitudinal 

 intermediate coxae, which are very widely separated, and by having the 

 scutellum hidden or almost hidden ; the clypeus is large and entirely 

 covers the mouth organs ; in some genera organs of stridulation are found 

 in both sexes ; the species live almost entirely in dung ; it is to this 

 tribe that the Egyptian Scarabai or " sacred beetles " belong ; ten 

 genera, containing seventy species, are found in Europe, of which only 

 two genera, containing eight species, occur in Britain ; these may be 

 distinguished as follows : 



I. Upper surface very convex ; third joint of labial palpi 



distinct CopBts, Geoff. 



II. Upper surface depressed ; third joint of labial p-ilpi 



very small, obsolete ONTHOPH ous, Latr. 



COPRXS, Geoffrey. 



This genus contains more than fifty species, which are widely dis- 

 tributed, but are chiefly found in hot and tropical countries ; only two 

 occur in Europe, of which one is found in Britain ; it is the nearest 

 relation of the true Scarabaei of hot climates that we possess ; the genus 

 differs from Onthoptiagus by its convex and more oblong form, emarginate 

 clypeus, and proportionally much shorter thorax ; the species burrow 



