20(3 Mr. BuTLKR on vai-ions (jeiiera of the 



' O 

 ]\Iost nearly allied to //. notata ; the colours excepted, it differs 



only in the slightly more depressed dorsal process of the thorax, 



in front gradually slanting, instead of almost perpendicular. 



4. IliJle conica. 



Oxygonia conica, Fairm., Ann. Ent. Ser. 2, iv, p. 302, 3 (1846). 

 ' Triqiu'tni reticulata. Walker, List, llomopt. ii, p, 524 (1851). 

 Colombia. Brit. IMus. 



5. Hille perfecta. 

 Tlielia perfecta, Walker, List. Homopt. Suppl., p. 138 (1858). 

 Kio Napo. Type Brit. Mus. 



C? . . 



This species differs from H. conica in the much less prominent 



anterior process, and its much more oblique anterior margin ; 

 also in its tawny colouring ■with black longitudinal dorsal stripe. 



G. Hille nutans, 

 ^mie nutans, Stal, Ofv. Vetensk. Akad. Fiirh. 18(59, ]>. 23(5. 

 Bogota. 



Seems allied to the preceding, but the black dorsal carina is 

 not indicated in Dr. Stal's description, so that it is probably 

 distinct. ^ 



7. JfiUe sulphurea, n. sp. PI. Ill, f. 1. 



Suljjhur-yellow ; pronotum covered with rather close brown 

 punctures, five lateral polished longitudinal lines on each side, 

 the third and fourth from the central carina abbreviated ; dorsal 

 keej^ black, its highest point less prominent and not so acute as 

 in///, conica, its front margin olilique and hardly perceptible, 

 sub-sinuate ; the front of the thorax (excepting in its less 

 prominent keel), much as in II. dorsalis ; the width at the 

 humeral angles about equal to the height in the centre ; humeral 

 angles and a small X like marking over each eye, black ; head 

 about twice as broad as long, spotted with black ; tegmina 

 testaceous, paler along the anterior margin, veins reddish ; 

 corium yellowish ; tarsi of legs slightly broAvuish. Length 

 9 mm. 



Bogota. Type Brit. Mus. 



General coloration oi'II. do/sal is; l)ut, viewed laterally, more 

 like^//. ji)erfecta in form, 



