84 
Psyche 
[June 
somewhat narrowed behind, sides broadly, not strongly 
sinuate before base ; posterior angles obtuse or finely right ; 
anterior angles without very conspicuous setae ; disk micro- 
reticulate, not obviously punctate, with fine, short sparse 
pubescence. Elytra reaching tip of abdomen, subtruncate, 
slightly dehiscent near apex ; about three inner striae faintly 
impressed on each elytron; intervals each with a single row 
of fine, short pubescence ; one inconspicuous discal puncture 
on the outer edge of the third interval, almost on the third 
stria, a little behind the middle. Inner wings dimorphic, 
well developed or reduced to about a third elytral length. 
Male front tarsi each with two basal joints dilated. Length 
1^4-1% mm. 
Holotype macropterous $ (Museum of Comparative 
Zoology no. 19504) and 16 paratypes (3 macropterous $ $ , 
7 macropterous $2,3 micropterous $ $ , and 3 specimens 
with wings not examined) all from Soledad (near Cienfue- 
gos) Cuba, June, Oct. 27, Dec. 1; most of them taken by 
treading down dense vegetation floating in deep water. They 
may possibly have been carried there by floods, but were not 
in real flood debris. Also 4 paratypes (all macropterous 
2 2 ) from Cayamas, Sta. Clara, Cuba, Jan. 2 & 29, Feb. 
7 & 13, E. A. Schwarz (United States National Museum). 
The dimorphism of the inner wings is correlated with the 
size of the eyes. The macropterous specimens have the eyes 
larger, usually slightly transverse, separated below from 
the margin of the mouth by about half or less the diameter 
of the eye itself. The three micropterous males have the 
eyes smaller, almost evenly rounded, and separated from the 
mouth by about their own diameter. 
This species is emphatically a Limnastis, not a Micra- 
topus, as shown by comparison with several American 
species of the latter genus and with a specimen of Limnastis 
macrops Jeannel kindly sent me by Dr. Jeannel himself. In 
the latter’s table of the genus (Livre Cent., Soc. Ent. France, 
1932, pp. 174 -) the macropterous form of the Cuban spe- 
cies runs to near L. coomani Jeannel of Tonkin, but has 
smaller eyes and differs in other ways. This does not, of 
course, indicate an actual affinity between the Chinese and 
