^13 [October. 



and apparently used for stridulating purposes. One of the commonest of 

 Bi'itish Guiana beetles. 



^ BUPIJESTIDAE. 



Euchroma hunteri Sharp. — A common species of Buprestid espe- 

 ciall}' in the interior. It takes flight readily during the da}^ if disturbed 

 and flies strongly with a loud humming sound. The Aboriginal Indians 

 frequently make necklaces of the elj^tra. On one occasion I was for- 

 tunate to secure the eggs of this beetle from a specimen sent in captivity 

 from the Botanic Gardens, Georgetown. Two small clusters of about a 

 dozen each were deposited. In shape they were stoutly cigar-shaped, 

 with one end slightly truncated, and in colour pale creamy yellow. The 

 mass was enveloped with a sticky secretion with which they were glued 

 down to the surface of the box. The surface of the ova bore slight, 

 uneveid}^ shaped reticulations. Length 6'00 mm., breadth 3"50 mm. 

 Several larvae hatched from these eggs but none survived. 



Stenogaster linearis Linn. — A fairly common species on the coast- 

 lands. I have alwaA's taken it on a plant known as Black Sage (Cordia 

 auhletti). 



Acteiiodes nohilis Linn. — Rockstone, Essequibo R. 



Psiloptera hirtomaculata L. & G. — East Bank, Demerara R. A 

 rare species. 



Agrilus setipes Chevr.— Botanic Gardens, Georgetown. 



Eucnemid.Tj. 

 Fornax mendax Bonv. — Tumatumari, Potaro R. 



Elateridae. 



Chalcolepidius striatus Linn. — A widely distributed species of 

 common occurrence. 



Pijroplioriis noctilucHs Linn. — This well-known luminous beetle is 

 frequently met with in the forest area. 



Atractosomus plebeius Cand. — Issororo, N. W.D. 



Triploni/cJnis cayennensis Er. — Upper Mazaruni R. 



AdeJocera pollinaria Cand. — Upper Mazaruni R. 



A. rubra Perty. — Kaituma R., N.W.D. 



Aeolus qiKidrimaculafiis Cand. — Issororo, N.W.D. 



Cardiorrhinns bilineaius Fabr. — Issororo, N.W.D. 



