Among various insects collected on behalf of the Entomological Research Committee by Dr. R. W. Gray in Southern Nigeria, a large number of minute Collembola, all belonging to the same species, and taken at Benin City on June 9th, 1910, have been sent to me for identification. So little is known of Tropical African Collembola, that no surprise could be felt when the insect proved to belong to an undescribed species. Dr. Gray gives no information as to the kind of locality in which this springtail was found, or whether it was in any way injurious. In Europe, however, in recent years, students of economic zoology have come, more and more, to recognise that many species of Collembola feed on living plant tissues1 as well as on the decaying vegetable and animal refuse which forms the usual food of their order. It seems fitting therefore that an account of the insect should be published in this Bulletin, if only to call the attention of entomologists working in Tropical Africa to the scientific interest, and probable economic importance of springtails.