Mnematium Ritchii, and Phanmus Kirbii. 539 



Genus. Mnematium. MacL. 



Ritchii. M. nigronitidum capite punctata vertice depresso, tho- 

 race latissimo punctata, elytris atris subsulcatis. MacL. 



Mnematium Ritchii. Mac L. in Hor. Entom. V. 1 - 



pt. 2, p. 506. 

 Tab. 20. f. 4. 

 Long. corp. | ; lat. \. 

 Habitat in Africa Boreali, Mourzouk. 

 In Mus. Brit., Dom. MacLeay, nost. 



The more profound votaries of Entomology need not be informed 

 that the above insect, now figured for the first time, is one of the 

 rarest and most interesting of the Class. It is the species of 

 which the discovery afforded so much satisfaction to the distin- 

 guished authour of « Horae Entomologies," as supplying the chasm, 

 that previously intervened between his groups of Heliocantharus 

 and Pachysomu; and which thus confirmed the justness of his. 

 views, and the correctness of his conjectures, as to the natural affi- 

 nities of -the family of Scarabatidw. The three specimens enume- 

 rated in the above collections are all that are at present known; 

 that in the British Museum having been sent home by the late 

 lamented Mr. Ritchie ; and the other two having constituted 

 part of the collection formed by Capt. Lyon, R. N., who ac- 

 companied the former traveller in his unfortunate expedition into 

 Africa. 



Genus. Phan^eus. Mac L. 



Kiubii. P. splendide viridis, capite apice atro, subbidentato, 

 thorace glaberrimo, dytris longitudinaliter sulcatis, antennis 

 ferrugineis. 



Tab. 20. f. 5. mas. f. 6./«ot. 

 Mas. Capitis cornu atrum, curvatum, thoracis vix longitudine. 

 Thorax nitidus depressus inermis, angulis posticis subobrusis, 

 margine rcflexo ; punctis posticis nullis. Elytra glabra, sulcata, 



