40 THE ENTOMOLOGIST. 



DESCRIPTION OF A NEW GOLIATH BEETLE FROM 



CENTRAL AFRICA. 



By Oliver E. Janson, F.E.S. 



In a small but interesting collection of CetoniidcB recently 

 received from the neighbourhood of Stanley Falls on the Upper 

 Congo, I have obtained a male of a very fine species of Neptunides, 

 and for the female I am indebted to Mons. R. Oberthiir, who has 

 more recently received, and forwarded to me for examination, 

 both sexes collected at Ouganda by Mons. Denoit. I propose 

 naming this fine species after the illustrious leader of the Emin 

 Pasha Relief Expedition and explorer of Central Africa. 



Neptunides Stanley i, n. sp. 



Elongate, convex, bright golden green, the femora tinged with fiery red, 

 margins of the clypeus, including the horns and median carina, the knees, 

 inner side and apical spines of the tibiae and the claws, black. Head 

 deeply impressed on each side in front, the impressions divided by a strong, 

 sharp, central carina, which extends from the base of the median horn to 

 the vertex; the median horn stout, recurved and dilated towards the apex, 

 the lateral horns divergent, flattened and rather obtuse. Thorax very 

 convex, subglobose, the sides a little emarginate and scarcely narrowed from 

 the^base to the middle thence somewhat abruptly rounded and narrowed to 

 the apex, the surface almost impunctate. Scutellum broad, triangular. 

 Elytra scarcely broader than the thorax at the base, a little narrowed 

 towards the apex, the suture slightly elevated posteriorly, extremely finely 

 and sparsely punctured. Pygidium, underside and legs finely and remotely 

 punctured ; mesosternal process flat, broad, rounded at the apex ; anterior 

 femora broad, the underside fringed with dense, short, yellow pubescence, 

 and armed near the apex with a large, acute, curved tooth ; anterior tibiae 

 emarginate and obtusely bi-dentate at the base, slightly emarginate on the 

 outer side and grooved on the inner side towards the apex, the apex with 

 two acute teeth on the inside and one behind. Length 36 — 38 millira. 



In the female the head is strongly punctured, impressed behind, and 

 has a longitudinal carina in the centre, the apex of the clypeus has a small 

 and nearly square projection in the middle, and the lateral angles are 

 slightly prominent, the thorax is much less convex than in the male, the 

 elytra have more or less distinct rows of fine punctures, the anterior 

 femora are unarmed, the anterior tibiae are dilated towards the apex and 

 acutely tri-dentate on the outside, and the intermediate and posterior tibiae 

 have an acute tooth below the middle. Length 30 millim. 



Habitat, Upper Congo District. 



The male is larger and proportionately narrower than N. poly- 

 chroiis and differs in the uniform colouring of the body, the head 

 is broader, with the central horn stouter and gradually dilated 

 towards the apex, the lateral horns are less curved and more 

 obtuse, the mediau carina is more prominent and extends to the 

 vertex, and there is no distinct transverse ridge on the forehead 



