(Page 41) 



1. T. ari.";ulata Er. 



(Srichs. Kaf. Mk. Br. I, 360; Gen. Spec. Staph. 17^; Kraatz Ins. P. 

 II, 7Ci Thorns. Skand. Col. II, 246; Muls. et Key Bre'vip. 1674, 386; ;anglb. 

 Kaf. M. II, 86). 



Lighter or darker reddish-brown ttnt<i blackish-brown; the head and most 

 often also the margins of the abdominal middle-joints nearly black; tip 

 of abdomen, antennal base and tip reddish yellow; legs rust-red. Fore- 

 body finely and sparsely haired, the surface very densely shagreened, greas- 

 ily dully glistening; abdomen glistening, sparsely and rather long haired. 



Head rather finely and densely punctated; antennae not strongly thick- 

 ened distally, their third joint distinctly longer than the eecond, the 

 middle and last joints compact, not articulated, feebly transverse, only 

 1^ times as broad as long. Pronotum posteriorly as broad as elytra, twice 

 as broad as long, narrowing anteriorly with slightly rounded sides and 

 almost rectangular hind corners, posterior margin inside these feebly, yet 

 distinctly Incurved, dorsum smoothly convex, the densely shagreened surface 

 rather finely and densely punctated, often with a feeble groove in middle- 

 line, and a slight transversal impression posteriorly parallel with pos- 

 terior margin, cilytra a little longer than pronotum, dense and rather dis- 

 tinct scabrous punctation; abdomen anteriorly finely and rather densely 

 punctated, posteriorly somewhat more robust, but more scattered punctation. 

 L . 3 mm. 



Common and often numerous in the mounds with Formica rufa and pratensl s . 

 "^ith the latter dark colored forest-ant ti.e color of T. an.Tulata is darker, 

 more blackiBh-bro*n than with tb* lifhter Fo rmleo. rufa . 



-54. 



