212 Mil. M. JACOBT OX THE [Mar. 15, 



from Babia Blanca, referred to in my account of Prof. Spegazzini's 

 mammals ', is very remarkable, widely different as are the skulls 

 of the two forms. Indeed, by the skin alone it would be almost 

 impossible to distinguish them. 



" Extremely abundant, and found in every clump of brushwood 

 throughout the neighbourhood. This little animal is very good 

 eating. It feeds on grass, and sits up like a rabbit on its hind- 

 quarters while chewing the mouthful it has just taken." — H. D. 



7. HiPPOCAMElUS BisuLCtrs (Mo].). 



a, h. Skulls with horns. 



These specimens are not labelled, but are presumably from 

 Mr. Durnford's Chubut collection. 



The information on which this name is adopted is obtained from 

 Mr. Lydekker's work on the Deer ^, but I am unable to admit the 

 validity of the reasons which have induced him to reject the name 

 Hippocamehis in favour of Xenelaphus. 



3. Additions to the Knowledge of the Phytophagous 

 Coleoptera of Africa. — Part I. By Martin JacobYj 

 F.E.S. 



[Eeceived February 28, 1898.] 

 (Plate XXII.) 



Since my last paper in the Proceedings of this Society was 

 read (see "P. Z. S. 1897, p. 527), a good deal of additional 

 material from Mashonalaud and West Africa has come to hand, 

 and more may be looked for through the exertions of Mr. Guy 

 Marshall in Mashonaland, so that there is good reason to liope that 

 erelong we shall be well acquainted with the Coleopterous fauna 

 of that region. 



The present paper deals with the earlier groups of Phytophaga ; 

 the Haltuincv aud Galerucinci' will form the subject of the second 

 part. 



Lema eegimbarti Gestro, 



Dark aeneous ; thorax tuberculate anteriorly, strongly and 

 closely transversely rugose or plicate ; elytra dark fulvous, very 

 regularly punctate-striate, the punctures partly elongate, the 

 interstices finely transversely aciculate, convex at the apex. 



Length 9 millim. 



Head dark aeneous, neatly black, finely wrinkled and closely 

 punctured, with a central deep elongate fovea, the interstices 

 sparingly pubescent ; eyes very deeply notched ; antennte black, 

 extending to the base of the elytra, the terminal joints strongly 

 widened and thickened, longer than broad ; thorax rather long, 

 the sides concave at the middle, the anterior angles produced into 



> Ann. Mag. N. H. (6) xx. p. 215 (1897). 

 2 • Deer of all Lands,' p. 29fi (1898). 



