The Ants of the Baltic Amber. 
129 
beyond the posterior border of the head; basal funicular joints slender, 
3 — 4 times as long as broad. Maxillary palpi long. Thorax slender, 
shaped much as in the recent F. pallidefulva Latr., but the mesonotum 
straight in profile, anteriorly raised a little above the pronotuni and 
sloping backward; epinotum short and convex, rounded, with indistinct 
base and declivity. Petiole fully as long as broad, its node rather small 
and narrow; as long as high, not compressed anteroposteriorly, very 
Fig. 61. Formica constricta Mayr. Worker. (Berlin Museum.) 
blunt and conical, its anterior, lateral and posterior surfaces all convex 
without a distinct transverse superior border. Gaster rather large, 
elliptical. Legs very long and slender, especially the posterior pairs, 
with long spurs. 
Surface shining, finely shagreened and sparsely and superficially 
punctate; mandibles rather coarsely striatopunctate. 
Body, scapes and legs covered with short, bristly, erect hairs; 
flexor surfaces of tibise and metatarsi beset with a row of oblique bristles. 
Color black or dark brown. 
Mayr, I am convinced, was not only in error in assigning this 
species to the genus Camponotus, but probably included in his de- 
scription of what he regarded as the worker major on account of a 
large and probably poorly preserved specimen of Pseudolasius seltatus , 
sp. nov. This I infer from his words: „Caput thorace latius, aut 
Schriften d. Physik. -Ökonom. Gesellschaft. Jahrgang LV. 9 
