44 NOTONECTID.'E. 



Head and pronotum pale oehraceous ; anterior margins of 

 interocnlar space, anterior angular foveations to pronotum, and 

 sometimes basal area of pronotum, more or less piceous ; scutellnm. 

 pale oehraceous, with a large central triangular basal spot and a 

 spot at each basal angle black ; corium pale dull oehraceous, the 

 claval, inner, and apical areas and a posterior elongate submarginal 

 streak black ; membrane black ; body beneath and legs oehra- 

 ceous, the abdomen more or less fuscous ; lateral pronotal margins 

 obliquely sinuate. 



Length 10 to 12 millim. 



Hah. Bombay {DLvon). Ceylon {Green). — Siamese Malay States. 



1523. Enithares triangularis, Guer. (Notouecta) Icon. Rcgn. Anim. 

 iii, p. 354 (1844) ; Kirk. (Enithares) Entomul. xxxiii, p. 10 

 (1900) ; id. Wien. eni. Zeit. xxiii, p. 99 (1904). 

 Notonecta simplex, Walk. MS. in TennenCs 'Ceylon,' ed. 2, 

 vol. i, p. 292 (1859) ; Kirby, J. Linn. Soc, Zool. xxiv, p. 125 

 (1891). 



Somewhat closely resembling E. templetoni, but larger, the 

 lateral margins of the interocular space more regularly curved and 

 less suddenly narrowed at base ; pronotal lateral margins more 

 straightly oblique, less sinuate- 

 Head and pronotum pale oehraceous, the eyes and some con- 

 fluent spots on anterior area of pronotum fuscous ; scutellum 

 oehraceous, a large basal triangular spot connected with a spot at 

 each basal angle black ; corium oehraceous, inner margin and 

 apical area of clavus, apical area and a posterior submarginal 

 elongate streak to corium, black ; membrane black, sometimes 

 paler at base ; body beneath and legs oehraceous, abdomen more 

 or less fuscous. 



Length 14 to 15| millim. 



Hah. Nilgiris (Paris Mus.) ; Trivandrum (Coll. Dint.); Trichi- 

 nopoly. Ceylon (Green). 



Genus ANISOPS. 



Auisops, Sjnn. Ess. Hem. p. .58 (1837); Fieb. Rhynchotoc/r. p. 57 

 (1851); Sm, Hem. Afr. iii, p. 191 (1865); Kirk. Wien. ent. 

 Zeit. xxiii, p. Ill (1904). 



Type, A. niveus, Fabr. 



Distribution. Distributed throughout the principal zoo-geogra- 

 phical regions *. 



This genus is allied to Notonecta by the non-transverse pronotum, 

 thus differing from Enithai^es. Prom Notonecta it is distinguished by 



* Kirkakly bas recently proposed a new geuus, Buenoa, for the reception of 

 the Neotropical species. 



