The Ants of the Baltic Amber. 
123 
XXB 832, XXB 83, XXB 518 etc.) and 19 in the Klebs Coli. (K 908, 
K 945, K 821, K 4784, K 4465 K 4054, K 818, K 5089, a 39, a 190, 
a 189, a 203, K 6430, a 202, « 184 etc.) 
Lasius punctulatus Mayr. 
Lasius punctulatus Mayr, Beitr. Naturk. Preuss. I, 1868, p. 46, Taf. II, Fig. 34, $; 
Dalla Torre, Catalog. Hymen. VII, 1893, p. 190; Ern. Andre, Bull. 
Soc. Zool. France, XX, 1895, p. 82; Handlirsoh, Fo?s. Insekt. 1908, p. 861- 
This species is known only from the female, which, on super- 
ficial examination, as Mayr observed, would be regarded as the hitherto 
unknown female of L. pumilus on account of its size (3 — 3,8 mm), but 
for the fact that all the funicular joints are longer than broad. I have 
not seen the type specimen which Mayr cites as existing in the Geolog. 
Inst. Koenigsberg Coli., but 4 winged specimens in this collection 
(B 5098, B 19161 and 2 without numbers) and two winged and two 
deälated specimens in the Klebs Coli. (K 5079, K 4046, K 927 and 
K 5083) agree perfectly in size and in the structure of the antennae 
with Mayr’s description. In all the winged individuals the discal cell 
of the fore wing is small. 
Lasius nemorivagus > sp. nov. 
Female (deälated). Length 6 mm. 
Differing from the female of L. schiefferdeckeri in its larger head, 
which is broad er than the thorax. The palpi are shaped like those 
of L. schiefferdeckeri, but the body is much more thickset, the legs and 
antennae are much stouter, joints 2 — 6 of the funiculi are broader 
than long and joints 7 — 10 not longer than broad. The petiolar 
node is rather broad, anteroposteriorly compressed, with a blunt, entire 
superior border. In L. schiefferdeckeri this border is emarginate and 
sharper. The surface of the body is shining and finely punctate; 
the head, thorax, gaster and coxae are beset with sparse, erect hairs. 
The color is dark brown, the appendages somewhat paler. 
Described from a single specimen (without a number) in the 
Geolog. Inst. Koenigsberg Coli. 
Except for the structure of the palpi, this female would be re- 
garded as closely related to the recent L. umbratus Nyl., which it 
very closely resembles in the shape of the head and body. It may, 
in fact, be the precursor of L. umbratus, which we must suppose to have 
arisen from just such a form, with the terminal joints of the maxillary 
palpi unabbre viated. 
