274 



[December, 



tlie length of the base, iii imbricated, with 9-11 secondary sensoria, arranged 

 along- its whole length, iv with three sensoria, v witb sometimes one sensorium 

 half-way along. Proportions 15, 15, 65, 50, 50 (23+54), total length 1 nun. 

 Head with one median and two lateral ocelli. Rostrum reaching the bind 

 co.\ae. Prothorax with a strong lateral spine. Abdomen with tive pairs of 



^"^OliilB?^ 



Fig. 2. — Ajthis tripolii, sp. n. Alate 2 : A, Antenna ; B, Cornicle : 

 C, Cauda ; D, Antenna of apterous $ . 



marginal papillae on segments 1-4, and 7. Cornicles dark brown, imbricated, 

 a little longer than the cauda, and slightly broader at the base than the apex, 

 •18 mm. long. Cauda dark brown, with four marginal hairs, '16 mm. long. 

 Fore legs pale brown, middle and hind pairs pale brown, with the tips of the 

 femora, tibiae, and tarsi black. Length : femora i '28 mm., iii "5 mm.; tibiae 

 i '54 mm., iii '80 mm. ; tarsi i -10 mm., iii "10 mm. 



Length 1*5 mm. 



Shoebm-yness, Essex, 31.viii.l919 {K. G. Blair) on Aster tri- 

 folimn. Co-types in the Brit. Mus. 



British Museum (Nat. Hist.), S.W. 7. 

 November 1919. 



A NEW SYCOPHAGINE (AGAONIDAE-CHALCIDOIDEA) GENUS AND 



SPECIES FROM THE GOLD COAST. 



BY JAMES WATERST03S', B.D., B.Sc. 



The position of the remarkable form described below may be seen 

 from the following tables : — 



Agaonidae. 



??• 

 Mandibles with leaf-like striate or minutely denticulate appendage ; articu- 

 lated * palpi absent Agaoninae. 



Mandibles without appendage ; articulated palpi present .... Sycophaginae. 



* In Cerafosoleit there is somotiraes on the Ist maxilla at the side a rod-like BetigerouB process 

 of doubtful lioaiology. 



