Entomological Society. 



8063 



Tychius, there is evidently great confusion. The following abstract from my notes 

 I think will be found correct: — 



T. lineatulus of Schonh. (not of Kirby) = T. polylineatus, Germ., Schonh. 



T. lineatulus of Kirby's MSS. and collection = T. Schneideri, Schonh. 



T. lineatulus of Stephens' ' Illustrations' = T. [Schneideri (part) and_ Miccotro- 



gus picirostris (part). 

 T. lineatulus of Stephens' collection = T. polylineatus (part) and Miccotrogus 

 picirostris (part). 



T. lineatulus of Germar == T. nigrirostris of Walton's Catalogue, and perhaps 

 also the T. tibialis, Schonh. 



The T. polylineatus of Schonh., in our collections, is generally, if not always, 

 labelled " Schneideri," and is sometimes mixed with the true T. Schneideri. The 

 name lineatulus is given as synonymous with Schneideri both iu Walton's Catalogue 

 and that of Dr. Schanm. 



4. T. venuslus, Fab. 



5. T. Kirbii (T. flavicollis, var. (3., Schonh.; T. flavicollis, Walton, in the British 

 Museum Collection, not of Kirby nor Stephens). Oblong-ovate, pitchy, densely 

 clothed with broad ochraceous scales, those on the under parts and on the suture of 

 the elytra whitish ; rostrum, antenna? and legs testaceous; thorax rounded and con- 

 tracted in front, the sides behind the middle line very nearly straight and parallel ; 

 elytra ample, with the humeral angles somewhat prominent, distinctly striated as seen 

 denuded of the scales, and of a rufous colour, excepting at the base ; rostrum long, 

 nearly straight and cylindrical ; posterior femora dentate in both sexes. Consider- 

 ably smaller than T. venustus, which it most nearly approaches in form, and distinctly- 

 larger than either of the following species. 



The above species all have some at least of the femora dentate : the following 

 species have unarmed femora. 



6. T.junceus, Germ., Schonh. Oblong-ovate, pitchy (the elytra posteriorly more 

 or less red), densely clothed with elongate yellowish scales ; rostrum distinctly arched, 

 gradually attenuated from the base to the point of insertion of the antennae, then 

 rather more distinctly attenuated and somewhat pointed, especially in the males; an- 

 tennae, legs and the greater part of the rostrum testaceous ; thorax with the sides dis- 

 tinctly rounded ; elytra striato-punctate. General form shorter and more inclined to 

 ovate than the following species. Schonherr's description of T. flavicollis, as it 

 appears to me, belongs almost entirely to this species. 



7. T. tomentosus, Germ., Schonh. Oblong, pitchy black (the apex of the elytra 

 more or less rufescent), above clothed pretty densely with elongate pale yellowish 

 scales, with filiform scales on the striae of the elytra, and a few broad white scales on 

 the suture; rostrum stout, very little bent, and of very nearly uniform width through- 

 out ; the apex only rufescent ; sides of the thorax very little rounded ; elytra distinctly 

 striated ; antenna? and legs testaceous ; the femora more or less clouded with dusky, 

 rarely entirely dark. More elongate than the preceding species, and is readily dis- 

 tinguished by its rostrum being stouter (the greater part dark coloured), less bent and 

 having the apex not attenuated. The scales on the elytra are, moreover, of three 

 distinct forms, whereas in T.junceus there is scarcely a perceptible difference in any 

 of the scales. In the preceding species the anterior tibia? are unarmed in either sex : 

 in the following four species the anterior tibiae of the males have a tooth or spine on 

 the middle of the inner side. 



