(Page 486) 



61. Antennal first two joints black 62. 



Antennal first joint black 63. 



62. Antennal middle joints and legs darkly brownish-red, almost black. 



L. 3.5-4 mm 58. St. latifrons Er. 



Antennal middle joints, and legs light brownish-red. L. 4-4.5 mm. 

 59. St. fulvlcornis Steph. 



63. Leg6 black with brownish-yellow tarsi. L. 4.5-5. :60. St. tarsalis Ljungh. 

 Legs yellow with black knees. L. 5.5-6 mm 61. St. slmilis Herbst. 



64. Thorax rather finely punctated. L. 5.5-6 mm. ...62. St. solutus Er. 

 Thorax with peculiar coarse punctation. L. 5.5-6 mm 



63. St. cicindeloides Schall. 



1. Subgenus Stenus s. str. 



1. St. biguttatus Linn. 



(Linne Sy6t. Nat. Ed. X, 422; Srichs. Kaf. Mk. Br. I, 529; Jen. 

 Spec. Staph. 690; Kraatz Ins. D. II, 742; Thorns. Skand. Col. II, 227; 

 Fey Erevip. 1884, 32; Janglb. Kaf. If. II, 557). 



A slender species with long tarsi, recognized mainly by the yellow 

 spot on elytra, and the color of maxillary palpi and the legs. 



Black with feeble bronze reflection, extremely finely, scarcely 

 noticeably haired; elytra with a small, round, reddish-yellow spot be- 

 hind middle and a little closer to the suture than to the deflected 

 side-margin; first joint of maxillary palpi and base of the second yel- 

 low. 



The head is scarcely as broad as elytra, densely and rather finely 

 punctated, between the eyes strongly concave and in middle-line very 



-18- 



