200 PROCEEDINGS OF THE ACADEMY OF [June, 



iistributed through the greater and lesser Antilles, having been taken 

 in the Bahamas, Cuba, and St. Vincent. 



Biological Notes. — The present species is bush-loving, and over 

 the greater portion of its range is rather plentiful in bayberry 

 and other heavy bushes. On the Florida Keys, specimens 

 could almost invariably be found in Ilex cassine during the 

 proper season. At Wrightsville, North Carolina, not only was 

 it found in great numbers in the bayberry bushes, but also on the 

 ground among leaves and low plants under live oaks in countless 

 numbers. Hardly ever before had the species been found on the 

 ground. In this respect the present species differs from both known 

 species of Cycloptilum which are almost Wholly terrestrial, and it 

 may be said to be truly thamnophilous. 



Synomjmy. — The description and figures of ant Mar um perfectly 

 match the series of specimens before us, and we unhesitatingly refer 

 our specimens to Redtenbacher's species. 



Saussure's Liphoplus krugii from Cuba also agrees perfectly, and 

 specimens before us from Cuba which we have previously determined 

 as krugii are inseparable from others in the present series. The 

 name consequently falls into the synonymy under antillarum. 



Scudder has described Mogosiplistus slossoni from Biscayne Bay, 

 Florida, apparently without reference to the literature bearing on 

 the Mogoplistii of the Antilles, and after examination of his type we 

 unhesitatingly place it also in the synonymy under antillarum. 



We have examined the unique female type of Mogisoplistus 

 harbouri Morse, in the Museum of Comparative Zoology at Cam- 

 bridge, and find it to be a very large specimen of the present species, 

 ten millimeters in length. The tympanum on the cephalic face of 

 the cephalic femora in antillarum is found to vary in a large series 

 from elliptical to nearly circular, and the fact that the species in 

 southern Florida is particularly small, doubtless caused the large 

 Bahaman specimen to appear different from the small individuals 

 of the type series of Scudder's synonymic Mogosiplistus slossoni when 

 it was compared with those specimens and described as new. 



Remarks. — The female of this species in the later stages of the 

 nymphal condition has six heavy dentiform spines on each side of the 

 heavy ovipositor sheath, these are situated distad along the ventral 

 margin of the upper sections of the valves. 



Specimens Examined. — 438; 175 males, 216 females and 47 nymphs. 



Beaufort, N. C; early July, 1909; (Sherman); 2n.: middle Sept., 

 1911; lcT, 1 9 . [Coll. N. C. Dept, Agr.] 



