Rhynchotal Family Lygseidse. 2(59 



Let ha us lonyirostris. 



Lethceus longirostris, Reut. Ent. Tidskr. viii. p. 102 (1887). 



Hub. Madagascar (fide Rent.). Rodriguez (Gullion). 

 Natal {Bell-Marley) . N.E. Rhodesia; Lower Luang wa 

 River, near Petauke, N.W. shore of L. Nyasa (S. A. Neave) . 



This species is variable in size ; specimens now before me 

 in length range between 9 and 12 mm. 



Lethceus descriptus. 



JRhi/parochromus descriptus, Walk. Cat. Het. v. p. 103 (1872). 

 Rkyparochromus alienus, Walk. torn. cit. p. 105. 



Lethceus signatus, Dist. Ann. & Mag. Nat. Hist. (7) viii. p. 506 (1901). 

 Lethceus descriptus, Dist. Faun. Brit. Ind., Rhynch. ii. p. 89 (1904). 



Hab. N. India. Ceylon. Tenasserim. North Borneo. 

 Sula Island. Natal; Durban {Bell-Marley). N.E.Rho- 

 desia ; Upper Luangwa River (S. A. Neave). 



We are now able to record the distribution of this species 

 (previously only known from the Indian and Malayan 

 regions) to the southern Ethiopian habitats of Natal and 

 Rhodesia. 



Bergroth (Phil. Journ. Sci. xiii. p. 95 (1918)) has devoted 

 nearly three large octavo pages to the description of a species 

 from the Philippine Islands (L.robustus) which is apparently 

 to be separated by the longer rostrum, u reaching middle of 

 third ventral segment." In descriptus the rostrum only 

 extends to about the posterior coxse as described by Walker. 



Genus Abanus. 

 Abanus, Dist. Faun. Brit. Ind., Rhynch. v. p. 81 (1910). 



In describing the type of this genus from specimens 

 received from Bengal, I wrote " pronotum elongate, about 

 as long as broad at base." This character from an examina- 

 tion of a series of specimens of another species received 

 from tropical Africa appears to be of a sexual (female) 

 character only, while in the male the pronotum is consider- 

 ably longer than broad at base. 



Abanus uyandensis, sp. n. 



Head and anterior lobe of pronotum black, basal area of 

 pronotum brownish ochraceous, blackly punctate, and with a 

 central ill-defined pale levigate longitudinal line, lateral 

 pronotal margins pale ochraceous ; scutellum black, punctate, 

 elongate, with two small discal spots and the extreme apex 



