49° The Ohio Naturalist. [Vol. VI, No. 5, 



improbable. Among these other "arthropods" were hundreds 

 of harvestmen collected together in shallow hollows beneath 

 the overhanging banks of a small stream. These were arranged 

 in close proximity to one another with their long legs bent up- 

 ward, thus making a very peculiar appearance. There were sev- 

 eral species of these, but each species was congregated by itself. 

 Several species of Hesperidae were also observed to be collected 

 in a similar manner, clinging close together, to overhanging 

 hollows beneath the bank, each species for itself. 



The characters of the .4 . elongatus from Guatemala tally very 

 nicely with the description by Mr. Banks (I) and I deem it 

 unnecessary to give any extensive description here, except to 

 state that they measure three millimetres in length and are 

 dark brown with the legs much lighter. 



I tried to determine the sexes of the specimens collected (22 

 in number), but was not successful. I had concluded that the 

 specimen figured was a male, but a study of sections made from 

 this after having completed the drawing showed it to be a gravid 

 fertilized female (Plate X). I counted from thirty-five to forty 

 apparently well developed eggs in the ovary, and I estimated 

 that a bunch of spermatozoa found in the oviduct, just inside 

 the genital opening, consisted of not less than two hundred 

 individuals, and there may have been twice that number. These 

 facts clearly show that the female is fertilized prior to the laying 

 of her eggs and that the s])ermatozoa may be retained by the 

 female at least for some short time (if not for a longer time) 

 before the eggs are fertilized and laid. 



All the longer hairs upon the figure (Plate XXXI) are exactly 

 as in nature. All hairs upon the dorsal scutae, the top of the 

 cephalo-thorax (a few very small ones omitted), the edges of the 

 cephalo-thorax and the mouth parts, or chelae, are exactly as 

 in nature. 



' Specimens of pseudoscorpions will be gratefully received and 

 exchanges made when possible. 



Biological Hall, Ohio vStatc University, Colunilnis, Fcl)ruary 14, 1906. 



LITERATURE. 



I. Nathan Banks, 1895. Notes on the Pseudoscorpionidae. 

 Jcmrn. N. Y. Entom. Soc, Vol. 3, No. 1. 



II. Berger, E. W. 1905. Habits and Distribution of the 

 Pseudoscor])ionidae, Principally Chelanops Oblongus, Say. The 

 Ohio Naturalist, Vol. VI, No. 2. Contributions Dept. ZooL and 

 Entom. Ohio State Univ., No. 23. 



