XV, 2 
Crawford: Jumping Plant Lice 
175 
hind tibiae with spur at base. Forewings hyaline, veins yellow, 
with three small brown spots on apical and posterior margins; 
pterostigma short. 
Male forceps a little more than half as long as anal valve, 
shaped irregularly somewhat as in A. meridionalis ; anal valve 
plain, narrowing toward apex. Female genital segment as long 
as abdomen, slender; dorsal valve a little longer than ventral, 
both acute. 
Luzon, Laguna Province, Los Banos {Baker), 1 pair. 
The male genitalia, shape of head, and venation of forewing 
point to a close relationship between this species and A. meri- 
dionalis, of the Malay Archipelago; and it appears, also, that 
A. flava, of Singapore, is related to both. 
Arytaina brevigena sp. nov. Plate III, fig. 4. 
Length of body, 2.2 millimeters ; forewing, 2.3. General color 
chocolate brown with fine reddish spots and markings on thorax 
and larger reddish areas on vertex; legs variegated chocolate 
brown and light brown; antennse black on apical half of each 
segment, rest flavous; forewings brown, lighter in central por- 
tion; with five round clear spots on apical margin. 
Head nearly as broad as thorax, not much deflexed. Vertex 
about half as long as broad, with a foveal depression on each 
side of median line and a blunt, thick tubercle on each outer 
angle behind antennal base. Genal cones short and strongly 
divergent, acutely pointed, extending only a very little beyond 
antennal socket; antennse three times as long as width of head, 
slender. 
Thorax not strongly arched, narrower than in many congeners, 
pubescent with very short, fine hairs. Femora short and thick; 
hind tibiae longer, slender, with a small spur at base. Fore- 
wings uniformly broadening from base to apex, latter rounded, 
margins nearly straight, veins setigerous, dark ; membrane black 
or brown except in central portion of wing and five small spots 
on apical margin. 
Female genital segment about two-thirds as long as abdomen; 
acutely pointed, dorsal valve longer than ventral, with a prom- 
inent constriction on dorsal valve beyond end of anal opening, 
terminal half acuminate and slender. 
Singapore {Baker), 4 females (2 in poor state of preserva- 
tion) . 
Arytaina pulchra sp. nov. Plate III, fig. 3. 
Length of body, 2.2 millimeters ; forewing, 2.3. General color 
brown; vertex dirty brown, thorax reddish or chestnut brown; 
