326 Bulletin American Museum of Natural History. [Vol. XXII, 



Camponoiiis marginatus subsp. vitiosns Emery, Zool., Jahrb. Abth. f. Syst., 

 VII, 1893, p. 675, noia. 



Camponoins marginatus race vitiosns Forel, Bull. Soc. Ent. Suisse, X, 7, 

 1900, p. 270. 



Worker major. Length 5-5.5 mm. 



Mandibles, clypeus and anterior f of head subopaque, finely and densely 

 punctate and in addition with shallow, scattered foveolae. Remainder ot body 

 shining, thorax sharply, occiput and gaster much more finely and indistinctly 

 shagreened. 



Hairs pale yellow, erect, obtuse and abundant on the mandibles, cheeks 

 and front; longer on the thorax and edge of petiole; sparse and rather incon- 

 spicuous on the gaster. 



Black; mandibles, anterior third ot head, antennae and legs deep red or brown; 

 in some specimens the trochanters, tips ol the coxae and lower portion of the 

 petiole are yellow; tips of antennae infuscated. 



Worker minor. Length 3.5-4.5 mm. 



Resembling the worker major except that the anterior portion of the head 

 is not foveolate, the legs are more yellow and the hairs on the cheeks are less 

 numerous and mostly appressed. 



Described from numerous workers taken by Mr. Hans Sauter at 

 Kanagawa from a single colony nesting "in an old oak. " 



While the above described form is certainly a variety or sub- 

 species of the well-known palearctic and nearctic marginatus, I am 

 unable to state positive^ that it is the true vitiosns of F. Smith. 

 None of the authors mentioned in the above synonymy has given a 

 careful description of vitiosus, and it is not improbable that mar- 

 ginatus is represented in Japan by several undescribed varieties. 



48. Camponotus marginatus Latreille var. quadrinotatus Forel. 



Forel, Ann. Soc. Ent. Belg., XXX, 1886, p. 142, $ 9 

 Forel, Bull. Soc. Ent. Suisse, X, 7, 1900, p. 270. 



The types of this beautiful variety are in the Berlin Museum. I 

 have examined a single worker media collected by Mr. Hans Sauter at 

 Kanagawa, and a winged female, male, two major workers and a , 

 worker minor collected by Professor Mitsukuri, probably near Tokio , 

 and kindly sent me by Dr. William H. Ashmead. As Forel has 

 shown, the worker major differs from that of the typical European 

 form in having a proportionally larger head. The two ivory yellow 

 spots on the first gastric segment are sometimes confluent. The 

 hitherto undescribed male is deep black, without a trace of spots on 

 the gaster. At first sight one would be inclined to regard this form 

 as more than a mere variety of marginattts, but closer examination 



