(Page 469) 



The head is rounded, as broad as pronotum, at middle with scattered, 

 on sides with rather dense, robust punctation; antennae slender, their 

 third joint much longer than the second, the next-last ones longer than 

 broad; pronotum oval, anteriorly considerably narrower than elytra, and 

 posteriorly narrowing, with fine and very scattered punctation, at mid- 

 dle smooth; elytra l/j times as long as pronotum, with robust and dense 

 punctation; abdomen finely and rather densely punctate, the transversal 

 grooves of the foremost free dorsal joints often smooth. L. 8-9 mm. 



In the O the abdominal sixth ventral joint at tip with a deep and 

 acute incision. 



Very local; but often numerous where it occurs. Especially on sandy 

 lake shores, and here and there on the beach (at Tissue, Tjustrup Lake, 

 Maribo Lake; Silkeborg, at Flensborg fjord; Fo in Bornholm). It is found 

 in Middle Sweden, but not farther north. - A somewhat larger species, 

 P. sansUinicollis Steph. (L. 8.5-9.5 mm), with broader head, and anter- 

 iorly broader pronotum, but otherwise particularly like ruf icollls , oc- 

 cur in Middle- Europe, and is (according to Reitter) more common in 

 Germany than ruf icollis . - In an other Middle European, likewise par- 

 ticularly closely allied, but smaller species, P. gemellus Kr. (L. 6.5- 

 7 mm) the elytral, but especially the abdominal hair vestiture is longer 

 and denser, and on sides of the four first free abdominal joints almost 

 stellately arranged (ianglb.). None of these two species are hereto- 

 fore encountered in this country, but are not entirely improbable; they 

 may be confuced with ruf icollls Fabr. The larva of ruficollis is found 

 at Tiss/ (6. 1895, W. Schlick, Rosenberg). 



-52- 



