222 PROF. M. BEZZI. 



II. Subfam. CEKATITINAE. 



Of this numerous subfamily only the genera with a bristly third longitudinal 

 vein are treated in the present paper. 



I. Conradtina, Enderlein, 1911. 



This well characterised genus has a rather isolated position, and comprises some 

 species of greater size which are not unlike the Oriental species of Lagarosia. in 

 which however the femora are unarmed. The genus Celidodacus, Hendel, 1914, 

 with its undescribed type-species, C. apicalis, Hendel, from South Nigeria (Wien. 

 entom. Zeit., xxxiii, April 1914, p. 75), is not dealt with here, as I have been unable 

 to recognise it, but the new species here described (Conr. suspensa) apparently has 

 a very similar wing pattern. 



To the characters of the genus Conradtina may be added that the second longi- 

 tudinal vein is distinctly sinuous, and that the first is very short, ending much 

 before the small cross-vein, which is placed beyond the middle of the discoidal cell. 

 The genus, as far as at present known, is confined to West Africa. The species can 

 be distinguished as follows : — 

 1(6). Apex of wing at end of 3rd and 4th longitudinal vein more or less broadly 



whitish hyaline, the apical fuscous band being therefore not contiguous 



with the wing border. 

 2(5). The two fuscous bands on the two cross-veins separated in the middle. 

 3(4). The two above-named bands separated at the hind border ; apical hyaline 



band rather broad . . . . . . . . . . . . acroleuca, Wied. 



4(3). These two bands coalescent at the hind border ; apical hyaline band very 



narrow ; a fuscous oblique streak across the middle of the last portion of 



4th vein . . . . . . . . . . . . . . acrodiauges, Speis. 



5(2). The two fuscous bands united to form a single broad patch, which is attached 



by a brown streak to the fore border . . . . . . suspensa, sp. nov. 



6(1). Apical fuscous band contiguous to the costa, and thus entirely filling the 



wing tip ; an oblique fuscous streak on the middle of the last portion cf 



4th vein . . . . . . . . . . . . . . longicornis, End. 



1. Conradtina longicornis, Enderlein, Zool. Jahrb., xxxi, 1911, p. 443, fig. S. 

 Described from W. Africa, Fernando Po. 



2. Conradtina acrodiauges, Speiser, Deut. ent. Zeits., 1913, p. 145. 



Of this species, described from Camerun, Duala, I have before me the specimen 

 collected at Lagos, S. Nigeria, by Prof. F. Silvestri and recorded by me in 1914.* 



3. Conradtina acroleuca, Wiedemann, Auss. zweifl. Ins., ii, 1830, p. 520 (Dacus). 

 Prof. Hendel in 1912*)" has redescribed this species from W. Africa, Sierra Leone ; 



Wiedemann's type was from an unknown locality. 



* Boll. d. Labor, di Zool. gen. e agr. Portici, viii, May 1914, p. 303. 

 t Wien. entom. Zeit., xxxi. February 1912, p. 13. 



