56 
Psyche 
[March-June 
this differs from the Scotocryptini which have a 3-3-3 formula. The 
species described below has a 3-3-3 formula (at least in the female, 
the male protarsal number is not known), which reinforces the sim- 
ilarity of the two groups. Because of the different formula of the 
new species, it will not key to the correct genus in Hatch (1929). 
Greagrophorus jamaicensis n. sp. 
Holotype, male (in INHS). Locality and data. Jamaica; St. 
Andrew Parish, Hermitage Dam, 1750' elev., io.v.1950, H. B. 
Mills. Paratypes, 6 females with same data. 
Description. The holotype male is missing its head and pro- 
notum. However, characters clearly defining the species are present 
on the thoracic and abdominal remnants. 
Length 1 .2-1.4 mm, width 1 .0-1.1 mm; male elytral length 1.1 
mm, width 1.1 mm. Color medium to dark reddish brown; antennae 
lighter. Surface smooth and shining. Wings normal. Male meso- 
femur broad, without hook; mesotibia (fig. 9) broad at apex; 3 
mesotarsal segments; metafemur (fig. 10) widening toward apex, 
with tooth 1/3 from apex, and hook at apex on posterior margin; 
metatibia normal; 3 metatarsal segments. Female mesofemur and 
mesotibia similar to male; metafemur broad but without tooth and 
hook. Female tarsal formula 3-3-3. Aedeagus (fig. 11) small, 
curved and pointed in lateral view; in dorsal view (fig. 12) tip 
pointed ; internal sac with long thin sclerotized tube ; parameres 
fused to median lobe. 
Diagnosis. The species is geographically separated from the 
other two known species (ha??iatus Matthews of Mexico and Pan- 
ama, and the bihamatus Matthews of Panama), and differs mor- 
phologically from the above in the characters of the male meso- 
and metafemora, and tarsal formula. 
Acknowledgements 
The field work was supported by Evolutionary Biology Training 
Grants GB 3167 and GB 7346 of the National Science Foundation, 
Prof. Reed C. Rollins, principal investigator, Harvard University. 
Mr. Alan Fiske, formerly of Harvard University, provided excel- 
lent field assistance in Jamaica in the forests and caves. Mrs. Elsie 
Fenn, of the Inglemount Guest House of Brownstown, aided our 
field work considerably by gracefully tolerating our unusual activ- 
ities while we stayed with her. Milton W. Sanderson loaned mate- 
rial from the collections of the Illinois Natural History Survey. 
