11)00. _ L'ataloijuc of l/ic Colcoptcra of South Africa. 71 



Gymnopleurus umcolok, Fain-., 

 Insect. Caffrar., ii., p. 182. 

 (r. delacjorguei, Waterh., Ann. and Mag. Nat. Hist., 1890, p. 370. 



Bronze, sub-opaque or very moderately shining on the upper side, 

 darker bronze underneath, legs of the same colour as the under side, 

 hut sometimes with a slight violaceous tinge ; head and prothorax 

 covered with very minute, closely set granules ; the latter has a very 

 tine longitudinal smooth median line, often quite indistinct, and 

 reaching from the base to about the middle ; the outer margin is 

 slightly- crenulate, liardly duplicate, distinctly sinuate beyond the 

 median part and a little attenuated towards the base where it is 

 slightly angular ; elytra narrowly striate, intervals finely and 

 equally shagreened ; pygidium shagreened ; metathorax produced in 

 a somewhat blunt triangle at apex, slightly impressed transversely 

 at base, and having a fine impressed line reaching from the basal 

 impression to a short distance from the apex ; it is fairly closely 

 punctured at middle, and granulose in front and laterally ; in the 

 male the anterior tibige are a little thickened at tip, very slightly 

 sinuate below the second external tooth, and not mucronate inwardly 

 at tip. 



Length 17-19 mm. ; width 11-12 mm. 



This species is very closely allied to G. consocius, but it is more 

 distinctly shagreened on the upper side, and it is always larger ; it 

 is distinguished from G. fastiditus by the apical part of the meta- 

 sternum having no transverse impression, and being much less pro- 

 nounced ; the anterior tibiae of the male are not so much ampliated, 

 nor so conspicuously emarginate inwardly at tip. 



Mr. Waterhouse has himself identified this species as his G. 

 delagorguei. 



Hah. Transvaal (Johannesburg, Potchefstroom), Southern 

 Rhodesia (Salisbury), Natal (Frere, Durban), Cape Colony (Port 

 St. John). 



Gymnopleurus thalassinus, Klug, 



Monatsb. Berl. Acad., 1855, p. 650, 



G. sub-cupratns, Fahr., Insect. Caffr., ii., p. 184. 

 G. coracinus, Fahr., loc. cit., p. 185. 



Obscure bronze, turning sometimes to very dark green on the 

 upper side, under side and legs bronze black, the latter sometimes 

 with a dark green or violaceous tinge ; head and clypeus very dis- 

 tinctly granular, the granules are not closely set ; prothorax also 



