358 



Mr. D. Sluir})'s Contiibutioits to the 



Tapajos ; one $ ,2 ^ individuals ; a s]iecimen was also 

 found at Lages, near Manaos, by Dr. Trail, on the oth 

 January, 1875. 



Ohs. — This species differs from S. siinioides by the 

 larger and more convex eyes, which reach quite to the 

 back of the head. 



Stenus. 



Although the species of this world-wide distrilnited 

 genus seem to be everywhere amongst the most numerous 

 of the StapJii/linido', yet only fourteen or fifteen species 

 have been as yet described from the warmer parts of the 

 New "World. The twenty-five species here described will 

 help, therefore, somewhat to rectify this disprojiortion. and 

 indicate that the genus is richly represented in South 

 America, as elsewhere. 



Of these species the first eight might, I should have 

 thought, have been properly placed in Erichson's division 

 1. B. Erichson, however, has described three or four 

 species fi-om Columbia {S. augur, &c.), which I judge 

 from his descriptions are very closely allied to these eight 

 species, and has placed them in his division I. A. I have 

 therefore left these species without indication as to their 

 position in Erichson's classification of the genus. Species 

 12 to 18 belong to a group of which the species are nume- 

 rous in South America, but no species of it occur in 

 Europe. Species 20 — 25 might be placed in a natural 

 manner between the European 6'. cicindeloides and S. con- 

 tractus. 



1. Stejius inspector, n. sp. Xiger, subopacus, antennis 

 fuscis, basi obscure testaceis, palpis flavis, pcdibus testaceis, 

 geniculis infuscatis ; fronte excavata, vertice angustissime 

 carinato ; thorace profimde transversim rugoso-punctato ; 

 clytris thoracis longitudine, dense fortiterque punctatis ; 

 abdomine gracili, crebre, basi distiucte, apice obsolete, 

 ])unctato, submarginato ; tarsis gracllibus, articulo 4° vix 

 lobato. Long. corp. 2^ lln. 



Antenna} moderately long, pitchy, yellowish at the base ; 

 3rd joint a good deal longer than 4th : the three apical 

 joints distinctly stouter, the 10th distinctly longer than 

 broad. Paljii pale yellow. Head with the eyes large, 

 quite as broad as the elytra ; the front distinctly excavated, 

 the clvpeus abruptly dellexed ; the surface densely and 



