864 NOTES ON FRUIT-FLIES, 



unknown in collections until now. Last year(1909), Mr. C. C. 

 Gowdey found this fly doing a great deal of damage to the Cocoa 

 pods, in the plantations at Uganda, and he sent a fine series of 

 specimens to Mr. Austen, at the British Museum, and also to me; 

 we both identified it as Wiedemann's long-lost species. Gowdey 

 has published a leaflet on the cocoa-fly, giving an account of the 

 damage it causes, and its life-history; but he does not give a 

 description of the adult fly. 



This is one of the largest species of the genus, measuring up to 

 1^ inch from the front of the head to the tips of the wings. 

 General colour dull greyish-brown; spotted all over the dorsal 

 surface and abdominal segments with dark brown to black marks, 

 those upon the thorax small, except the three large, shining, 

 black blotches occupying the scutellum. Wings mottled and 

 barred much like those of C. ruhivora. 



Chaitotactic characters. — First antennal joint with 

 a fan of fine bristles; face covered with fine scattered bristles, 

 but without large lateral bristles; hind margin of eyes fringed 

 with stouter bristles, eight or more in number. Thorax : each 

 black spot bearing a stout bristle; front margin of thorax with 

 six, two outer ones longest; no bristles on the rounded scutellum. 

 The whole of the dorsal surface of the abdomen clothed with fine 

 bristles, forming a transverse band round each segment, to the 

 sheath of the ovipositor of the female. 



Hah. — Uganda, E. Africa; attacking Cocoa-pods (Mr. 0. C. 

 Gowdey). 



Crratitis catoirei Guerin. The Mauritius Fruit-Fly. 



From the Seychelles Islands, I have a female specimen of a 

 Ceralitis which was obtained by Mr. Dupont, Director of the 

 Botanical Station at North Mahi, from a Tangerine orange. 



It agrees in colouration and size with Giierin's description of 

 C. catoirei, which was described from Mauritius as damaging 

 oranges. 



Ohsetotactic characters identical with those of C. 

 capitata. Head : four bristles on either side of front, one on 



