HEMIPTERA— MIRIDAE AND ANTHOCORIDAE. 



201 



Onconotellus, gen. n. 



Refers to subfamily Dicyphinae, but distinguished from all known genera 

 by the hood-like elevation of anterior lobe of pronotum and by the false vein 

 in the wing membrane (Fig. 1). Head vertical, inserted in prothorax to a 

 point where the eyes touch the collar ; a very shallow impressed line on median 

 line of vertex. Stricture of collar extending from coxal cleft dorsally to point 

 at side of the projecting triangle at top of collar. Thorax thickly clothed with 

 erect, white pilose hairs. Antennae slender, length of segment I not exceeding 

 width of head. Wing membrane with a false vein extending posteriorly from 

 tip of smaller areole (Fig. 1). Arolia (Fig. 1) rather similar to those found 

 in Dicyphus, arising from inner basal angle of claws and converging at tips, 

 the claws evidently not capable of being spread to a wide angle. 



Genotype : — Onconotellus buxtoni, sp. n. 



7. Onconotellus buxtoni, sp. n. (Text-fig. 1). 



Colour. — Brown to reddish, head darker brown, strongly shining ; antennae 

 reddish to fuscous brown, segment IV fuscous. Hemielytra pale translucent, 

 clavus fuscous to brownish translucent. Membrane and veins pale fuscous, 

 paler on disc and darker on each side of the false vein. Legs pale yellowish- 

 brown, translucent, coxae reddish, hind tibiae reddish at base, tips of tarsi 

 fuscous. Venter more reddish-brown than thorax. 



Structure. — Total length 4-4 mm. Head : width -74 mm., vertex -33 mm. ; 

 position vertical, vertex with fine, longitudinally impressed line on middle. 

 Rostrum, length 1-3 mm., attaining posterior margins of hind coxae. Tylus 

 narrow, confluent at base with the frons, its apex directed slightly backward, 

 attaining a point slightly behind a line drawn perpendicular to front margins 

 of eyes. Antennae : segment I, length -65 mm. ; II, 1-73 mm. ; III, -65 mm. ; 

 IV, -74 mm. Pronotum: length -91 mm., width at base 1-02 mm. ; anterior 

 lobe set off by a constriction, its disc convex, representing the calli, shallowly 

 longitudinally sulcated on middle, apex angular and covering the collar ; thickly 

 clothed with erect, pale hairs. Scutellum moderately and evenly convex (its 

 base and the mesoscutum destroyed by the pin, but reconstructed in the 

 drawing), clothed with hairs like the pronotum. Hemielytra finely pubescent, 

 with longer hairs on clavus, each pubescent hair arising from a minute puncture, 

 these latter more clearly evident owing to the translucent texture of the hemi- 



