1956] 
Slater — Puerto Rico Pamphantinae 
51 
gate, nearly as long as wide and only slightly narrow- 
ing anteriorly, lateral margins sinuate and narrowly 
carinate anteriorly, surface punctate except in area of 
calli, lacking a well defined transverse constriction, length 
pronotum .75 mm., basal width .80 mm.; scutellum punc- 
tate, lacking a median carina, length .30 mm. ; hemelytra 
strongly expanded on posterior two-thirds along corial 
margin, claval commissure well developed, length .45 mm. ; 
apical margin of corium straight, distance apex clavus- 
apex corium .85 mm., distance apex corium-apex abdomen 
.75 mm., membrane not quite attaining apex of abdomen; 
labium attaining mesocoxae, basal segment extending poste- 
riorly halfway to base of head, second segment exceeding 
base of head by one-half its length, length labial segments 
I, .28 mm., II, .38 mm., ill, .30 mm., IV, .32 mm.; femora 
not incrassate, devoid of spines or teeth ; antennae elongate, 
first segment rather stout, fourth fusiform, length anten- 
nal segments I, .25 mm., n, .72 mm., in, .62 mm., IV, .85 
mm. Total length 3.75 mm. 
Brachypterous male: Smaller (total length 3.15 mm.), 
head somewhat more declivent, posterior pronotal lobe 
markedly reduced; hemelytra reduced to a pair of heavily 
punctured truncate pads with a very narrow terminal 
rim of membrane, clavus and corium indistinguishably 
fused, hemelytra extending caudad onto third abdominal 
tergite, posterior margin of tergites four and five curving 
caudad mesally (as in Geocoris ) , anterior abdominal 
sterna incompletely fused, connexivum prominent and up- 
curved; labium reaching metacoxae. 
Holotype: Macropterous male. Puerto Rico: El Yunque, 
3,000 ft., May 1938, Darlington. In Museum of Compara- 
tive Zoology (Harvard). Paratype: Brachypterous male. 
Puerto Rico: Ensenada, June 14-19, 1915. In American 
Museum of Natural History. 
This species is related to Pamphantus pallidus Barber 
& Bruner from Cuba. It differs primarily in not possessing 
spined and incrassate fore femora, in the complete lack 
of fuscous color markings on the dorsum and in the greater 
relative length of the fourth antennal segment. In pel- 
