78 William Morton Wheeler 



Roger and yysilon Forel, though the sculpture of all of these is 

 very different. 



I have seen 16 workers of D. cornutus, 8 in the Klebs Coll. 

 (K 1026, K 804, K 855, K 802, K 5792, K 1048, K 831, and a 140) 

 and 8 in the Geolog, Inst. Koenigsberg. Coll. (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, 59d^. 

 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 dealated female 

 and a single male specimen. I have examined two of the worker 

 types in the Geolog. Inst. Koenigsberg Coll., 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 dealated 

 females in the same collection (B 19736 and B 19729) also agree 

 closely with the description. There is a male (10835/775) marked 

 yyllj/poclinea baltica" in this collection and another in the Klebs Coll., 

 which agree with Mayr's description, but I doubt whether either really 

 belongs to this species. This doubr 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 Dolichoderince in the Genera Insectorum. Although 

 there are in the Geolog. Inst. Koenigsberg. Coll. several other males 

 which seem to belong to the genus Dolichoderus, I have not attempted 



