(Pa^e 11) 

 of all our beetles (c. 3OOO species), and it is not unlikely that this con- 

 siderable number, by enerj^etic investigation in all parts of this country, 

 could further be increased by several species, which belong to the Staphy - 

 linidae fauna of the nearest neighboring countries, though not yet found 

 here. 



The Staphylinidae larvae of most of the genera are heretofore yet un- 

 knov/n or not described. In Katurh. Tidsskr, 1864-65 and 1872-73 Prof. I.C. 

 Schi0dte has described and illustrated several larvae, belonging to genera 

 Velleius , ^Tjedius , Ocypus , Philonthus , "'laxitholinus , Oxyporus , Bledius , Pla- 

 tystethus , Tachinus, Tachyporus , Stenus and gyntomium . Other descriptions 

 by various authors: Ferris, Rey, Fauvel, Thomson et al. are found scattered 

 in international scientific journals. The larvae are of form somewhat like 

 the beetles and in appearance often reminiscent of these. They are inter alia 

 distinguished by this, that the tarsi of the otherwise well developed legs 

 have only 1, claw-shaped joint; the mouth lacks , the labrum; the antennae, 

 which most often are 2- jointed, has as a rule a supplementary joint, (how- 

 ever in Stenus 4- jointed without supplement); the cerci of the ninth abdom- 

 inal segment are most often 2- jointed, rarely undivided; the anal segment 

 is obliquely downwardly directed and is used for support or locomotion (push- 

 ing-joint) (see Fig. 146). In genera of the group Staphylinini the dorsal 

 shields of the abdominal se.gmcnts are divided in medial line, in the rest 

 of the investigated genera they are entire. - The comparative considerable 

 external likenes between larvae and beetles, is regarded as eui indication 

 of, that the Staphylinids, especially the genera Xantholinus . laederinus . 



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