CENTROTUS. 



45 



at the clavus, on the base and along costa thickly and finely 

 punctured and traversed by rusty-yellow veins; wings hyaline, 

 with rusty-yellow veins ; pectus rusty-yellow ; anterior coxae and 

 clypeus brownish ; abdomen pale yellow beneath, anterior coxse 

 near clypeus brownish; abdomen below pale yellow and above 

 rusty-yellow ; borders of abdominal segments reddish. 



"This species is allied to atricoxis, Kirby, but much more slender, 

 the lateral process short, and es])ecially distinguished by the rusty- 

 yellow colour of the whole body." {Melkliar.) 



" Length c? & $ 5 millim." " 



Hah. Ceylon ; Peradeniya, Henaratgoda {fide Mellcliar). 



I have not seen this species. 



Division CENTBOTUSARIA. 



The fundamental character by which the Centrotusaria are to be 

 separated from the previous divisions is found in the wings, which 

 have only three apical areas. The presence of pronotal lateral 

 processes divide it from the following division Gargararia. 



Synopsis of Genera. 



A. Posterior pronotal process distinctly separate 



from scutelhnii, moderately ampliate beneath 



and inipingiufj on tegmiua Centbotus, p. 45. 



B. Posterior prouotal process rising obliquely 



direct near base of pronotum and then 

 rectangularly directed to near posterior angle 

 of inner tegminal margin Anchon, p. 49. 



C. Posterior prouotal process moderately short 



and impinging on scutelluni and tegmiua . , Tricentrus, p. oS. 



Genus CENTROTUS. 



Centrotns, Fabr. Si/st. Rhym/. p. IG (1803); Stdl, Hem. Afi: iv, 

 p. 88 (18G6) ; Melich. Horn. Faun. Ceylon, p. 109 (1903). 



Type, C. cormttus, Linn., a Palsearctic species. 



Distrihution. Apparently found throughout the Eastern hemi- 

 sphere. 



In this genus the posterior pronotal process is distinctly sepa- 

 rate and somewhat remote from the scutellum, then moderately 

 ampliated beneath, the apical area slender and impinging on the 

 tegmiua ; anterior lateral processes of variable shape and size, 

 generally, as in the species here included, longly produced. Stal, 

 in his synopsis (supra), gives the lateral angles as acuminate, but 

 this cannot be maintained for all the species which I have here 

 included in Centrotus. The structure and position of the posterior 

 pronotal process is, however, appai'ently a constant character. 



