Genus Anamnesis. 511 



marginibus externis profunde deorsum intusque inclinantibus, 

 angulum acutum formantibus, abdominisque partem circumcin- 

 gentibus. 



Pedes graciles : coxis intermediis a se distantibus. Tibice an- 

 ticae extus quadridentatae, dentibus subelongatis subacutis ; et 

 quinque tuberculis brevibus subobtusis subdentiformibus prope 

 basin extus, duobusque inter dentes primum et secundum sub- 

 acutioribus, instructae ; tarsis nuUis. Tibice intermediae tetra- 

 gonae, graciles, subarcuatae, longitudine mediocres, integrae, duobus 

 calcaribus ad apicem instructae ; tarsis subfortibus, unguibus debiii- 

 oribus. Tibice posticae elongatae, calcare uno instructae, in caeteris 

 intermediis similes. 



Corpus supra depressissimum ; abdomine subtus convexo. 



Obs. Instrumenta cibaria^ individuum exemplum generis solum 

 habens, baud dissecui riteve examinavi. 



The family of Scarabceidce as characterized by Mr. MacLeay 

 in his '^ Hoi^ae Entomologicae" appears diviseable into live chief 

 groups; of which the genera Scarabceus, MacL,, Copris^ III., 

 Phanceus, MacL, OnthophaguSy Latr., and the remaining portioa 

 of the genus Ateuchus^ Weber, which does not possess those charac- 

 ters that have separated the true Scarabcei^ MacL., from that 

 genus, may be selected as the representatives. To this latter 

 group of Jteuchusy thus curtailed, the present form appertains : 

 and it may probably be found to be the typical representative of 

 the group. At least it partakes to so great a degree of the charac- 

 ters of each of the above well known genera Scarabceus and 

 Coprisy that it may be chosen as an appropriate example of the 

 fifth group of the Scarabceidce^ MacL., intervening between and 

 connecting those two groups, and of equal value with them. It 

 bears an evident relation of affinity to the former genus by its 

 depressed form and elongated and slender hinder tibice^ and at 

 the same time asserts its affinity to the latter by the wide separa- 

 tion of the medial cpxce^ and the double spur on the tibice of the 

 middle legs. 



The group of Anamnesis is of equal value in respect to the 

 larger group of AteuchuSy with that which Heliocantharus^ MacL., 



