78 
William Morton Wheeler 
Roger and ypsilon Forel, though the sculpture of all of these is 
very different. 
I have seen 16 workers of D. cornutus , 8 in the Klebs Coli. 
(K 1026, K 804, K 855, K 802, K 5792, K 1048, K 831, and a 146) 
and 8 in the Geolog. Inst. Koenigsberg. Coli. (8743/493, Mayr’s type; 
XXB 28, B 18291, B 18255, B 18214, B 18815, B 18655 and one 
without a number). The head is lacking in Mayr’s type. 
Dolichoderus (Hypoclinea) balticus (Mayr) (Fig. 33). 
Hypoclinea baltica Mayr, Beitr. Naturk. Preuss. I, 1868, p. 64. Taf. IV, Fig. 61 
bis 64, J9d\ 
Dolichoderus balticus Forel, Bull. Soc. Vaud, Sc. Nat. (2) XV, P. 80, 1878, p. 386; 
Dalla Torre, Catalog. Hymen. VII, 1893, p. 157; Ern. Andre, Bull. 
Soc. Zool. France XX, 1895, p. 82; Handlirsch, Foss. Insekt. 1908, 
p. 869. 
Mayr based this species on six workers, a single deälated female 
and a single male specimen. I have examined two of the worker 
types in the Geolog. Inst. Koenigsberg Coli., namely 3740/88 and 
7636/350 and find the former to be a specimen of D. tertiarius Mayr. 
Fig. 33. Dolichoderus (Hypoclinea) balticus Mayr. Worker. 
The latter agrees with Mayr’s description and figure. Two deälated 
females in the same collection (B 19736 and B 19729) also agree 
closely with the description. There is a male (10835/775) marked 
„Hypoclinea baltica“ in this collection and another in the Klebs Coli., 
which agree with Mayr’s description, bnt I doubt whether either really 
belongs to this species. This doubt extends to all the male Dolichoderi 
described by Mayr from the amber. Even the males of the recent 
species of the genus are so imperfectly known that Emery could not 
draw up a satisfactory generic diagnosis of the sex in his recent 
revision of the Dolichoderinoe in the Genera Insectorum. Although 
there are in the Geolog. Inst. Koenigsberg. Coli, several other males 
which seem to belong to the genus Dolichoderus , I have not attempted 
