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. mendionalis; 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 Bafios (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; antennae 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; antennas 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; 



