238 



Zoologica: N. Y. Zoological Society [HI; 11 



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FIG. IS. ENTOMOBRYA WHEELERl SP. NOV. 

 a, lateral view, X 41.5 ; b, left hind foot, X 386 ; c, left mucro, X 386. 



faintly tinged apically with blue; the eyes are pigmented sepa- 

 rately instead of collectively; the antennse are subequal to the 

 head in length, with segments short and stout, in relative lengths 

 as 4:5:5:11; while the fourth abdominal segment is only two 

 and two-thirds times as long as the third. In an individual O.G 

 mm. in length, the ratio between the third and fourth abdominal 

 segments is as 1 :4. 



Described from four cotypes, which have been deposited 

 in the Museum of Comparative Zoology, Cambridge, Mass. 



I take pleasure in naming this new collembolan after 

 Professor W. M. Wheeler, who found it living with colonies 

 of a peculiar social beetle, Coccidotrophus socialis Schwarz and 

 Barber, at Kartabo, in British Guiana. 



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