86 Mr. David Sharp on the 



cens, antennis palplsque testaceis, pedibus fla\-is, femoribus 

 apice tibiisque basi late nigris, abdomine parcius punctato. 

 Long. 2^31 lin. 



The abore diagnosis is that given by Erichson to cha- 

 racterise S. cicindelo ides; it applies completely to Japanese 

 indi%-iduals of a species of Stenus. These so greatly re- 

 semble European specimens of cicindeloides that they 

 would generally be pronoimced unhesitatingly as con- 

 specific therewith, and yet a careful examination has re- 

 vealed to me certain differences which have led me to 

 separate the two with confidence. In the Japanese insect 

 the head is not quite so broad, for though the eyes are 

 even larger, and more convex than in the European insect, 

 the space by which they are separated is less ; the thorax 

 is a little more rounded at the sides and therefore less 

 cylindric ; the elytra are just a little longer ; the articula- 

 tions of the antennas are longer, and the hind tarsi are 

 longer and more slender, this being especially notable 

 when the basal joints of the tAvo are comj^ared. 



Very abundant in Southern Japan and North China. 



157. Stenus hirtellus,n.s^. (Sec. II. B. Er.) Niger, 

 nitidus, pube tenuissime erecta parcius vestitus, fortiter 

 punctatus ; antennis, pedibus, palpisque testaceis, illarum 

 clava infi.iscata. Long. 1^ lin. 



Intermediate between S, contractus and cicindeloides. 

 Anteunfe thickened ii'om the 6th joint to the extremity, 

 the slender joints yellow, the others darker. Palpi yellow. 

 Head rather small, but a little broader than the thorax, in- 

 distinctly bisulcate. Thorax not much more than half as 

 broad as the elytra, about as long as broad, considerably 

 rounded at the sides, shining black, coarsely and closely 

 punctured, with a small smooth shining space in the middle. 

 Elytra longer than the thorax, broad and outstanding, 

 closely and extremely coarsely punctured, shining black. 

 Hind body slender in proportion to the elytra, regularly 

 narrowed from the base to the extremity, which is quite 

 pointed ; it is very coarsely punctm-ed, and is remarkable 

 on account of the very fine, distinct, upright pubescence with 

 which it is sparingly clothed. Legs yelloAv, the extremity 

 of the femora just a little clouded. 



The male has an extremely minute notch at the extremity 

 of the ventral plate of the 7th segment of the hind body ; 

 the 6th segment is a little flattened before the extremity. 



