(Pa-e 34) 

 than with the lighter colored Form, rufa and truncicola . It is distrib- 

 uted with the host ants, and especially common in the woods. 



2. D. dentata Jravh. 



(iravh. Won. 181; Erlchs. Kaf. Mk. Er. I, 374; Jen. Spec. Staph. 201; 

 Kraatz Ins. D. II, 111; Thorns. Skand, Col. II, 244; Muls. et Pey Brevip. 

 1874, 13; Janglb. Kaf. M. II, 49). 



From the preceding species, to which it as a whole in form, color and 

 punctatlon is particularly closely allied, it deviates in the following 

 minute details: 



It is as a rule a little smaller and narrower than Maerkeli , elytra 

 and pronotal sides most often lighter red, antennae can be a little less 

 robust, but the next-last joints are however also here twice as broad as 

 long; pronotal side-planes are a little before the middle as a rule dis- 

 tinctly foveated impressed; its side-margins not quite smoothly rounded, 

 bi't v.ith a feeble, yet distinct incurve before the acute, a little out- 

 wardly directed hind corners. The punctation of pronotum and elytra is 

 finer and denser than in Maerkell , abdomen a little more distinctly and 



also denser punctated, especially posteriorly; (Page 35) 



the surface of both anterior and pest-last Joints of abdomen, sufficiently 

 magnified, very finely, yet distinctly reticulated. L. 3.F)-4.5 mm. 



It lives in the mound with Formica san.-'cujnee and in those of this cpe- 

 cies and the slave-ant Form, fusoa . mixed abodes, is distributed with the 

 host-ant, but as a whole rare. Its larva is illustrated and described by 

 E. '"asmann in Entom. Zeitung. ''ien 1889. 160. 



3. D. Ha.;ensi Wasm. 



-4 2- 



