GERBIS. 143 



line which is faint and subobsolete on posterior area, anterior 

 lateral and posterior margins dull ochraceous ; eyes black ; 

 antennae with the first and second' joints brownish ochraceous, 

 their apices black, third and fourth joints piceous; hemelytra 

 piceons brown, the veins brownish ochraceous, a dull greyish 

 elongate spot behind middle and near inner margin, membranal 

 area dull piceous, the extreme margin brownish ; body beneath 

 ochraceous ; a lateral marginal fascia to sternum, a sublateral 

 slightly curved line scarcely reaching middle of sternum, a 

 longitudinal oblique line at the region of the anterior and inter- 

 mediate acetabula, and suffusions to the abdomen beneath black ; 

 between the lateral and sublateral fasciae the sternum is silvery 

 grey pubescent, and the lateral margins of the abdomen and a spot 

 on the posterior acetabula also silvery grey pubescent ; rostrum 

 ochraceous, its apex black ; legs dull ochraceous, the femora 

 narrowly margined with piceous, apices of tibise and the whole of the 

 tarsi piceous black ; antennae with the first joint longest, second, 

 third and fourth joints almost subequal in length ; rostrum distinctly 

 passing the anterior coxae ; head moderately convex, longer than 

 broad ; pronotum with the margins of the anterior area convex, 

 obscurely transversely ridged between the humeral angles, which 

 are subprominently nodulose, posteriorly moderately obliquely 

 deflected ; hemelytra slightly shorter than posterior femora ; 

 intermediate and posterior femora about equally long, anterior 

 femora moderately thickened. 



This description is taken from a macropterous female specimen ; 

 in some apterous male specimens the anterior femora are distinctly 

 incrassated. 



Length $ macropt. 10, $ apt. 8^, d apt. 8 millim. 



Nab. Simla Hills; Dharam pur, "5000 ft,, Matiana 8000 ft. 

 (Annandale) ; Bhim Tal, Kumaon, 4500 ft. (Annandale) ; Kurse- 

 ong, 5000 ft. (Annandale). 



GEEBJS SAHLBEEGI. (Vol. II, p. 179.) 



Add : Hab. Simla Hills ; Theog, 8000 ft. United Provinces ; 

 Naini Tal, Kumaon. 



Common in stagnant pools (N. Annandale). 



2917. Gerris nepalensis, Dist. A. M. N. H. (8) v, p. 142 (1910). 



Body above and hemelytra black ; body beneath silvery 

 pubescent ; lateral margins of head silvery pubescent ; antennae 

 with the first and second joints castaneous brown, their extreme 

 apices and the whole of the third and fourth joints piceous black : 

 pronotum with an obscure longitudinal, central, brownish 

 ochraceous line, usually only discernible on the anterior area ; 

 anterior femora black with silvery pubescence, their base and a spot 

 near apex ochraceous ; intermediate and posterior femora brown- 

 ish ochraceous, their apices black ; intermediate and posterior 



