452 



Hevalieva giffardi n. sp. 



Length of body 1.7 mm. ; length of forewing 3.0 mm. ; general color 

 dark brown to dull black ; legs, metacoxae, pleurae and antennae light 

 or pale brown or yellowish. Body surface covered sparsely with long 

 stiff hairs. 



Head as broad as mesothorax, not quite as broad as metathorax. some- 

 what declivous ; vertex broad, about half as long as broad, narrowly 

 elevated on posterior margin, with a deep, discal fossal depression on 

 each side of median suture extending obliquely toward antennal bases, 

 roundly convex between each depression and median suture ; with a few 

 long stiff hairs along median suture and near each posterior ocellus, 

 genal cones short, one-third or one-fourth as long as vertex, divergent, 

 subacute, with a tuft of short hairs at base of each near anterior 

 ocellus. Antennae about as long as width of head, or sometimes a little 

 longer, slender with a few setae distad. 



Thorax moderately broad and arched, with conspicuously long and 

 stiff hairs; legs rather long, slender, hary ; hind tibiae with 4 or 5 

 short black spines at apex. Forewings broad, hyaline but maculated 

 conspicuously with brown (as indicated in figure), veins and margins 

 beset with long setae, the costal and apical margins with a double row 

 and the others with single row ; first marginal cell very large ; radius 

 long. 



Abdomen short. Male forceps slender, acuminate, about ^ as long' 

 as anal valve or more, subacute at apex. Anal valve with anterior 

 margin straight, posterior margin convex, broadest near base, fringed 

 caudad with long, fine hairs. Female genital segment not as long as 

 abdomen, acutely pointed, dorsal valve a little longer than ventral, with 

 a large tuft of long hairs at about the middle of the dorsal valve dorsad. 



Distribution : — Island of Hawaii — Olaa, elevation 3000 ft., 

 September 8, 1917 (W. M. Giffard), 26 specimens, both sexes. 

 Taken on leaves of Platydesma campanulata. 



This is the most ornate of the species thus far known in 

 these Islands and appears to be limited to Hawaii in the 

 mountains. 



Megatrioza pahnicola n. sp. 



Length of body, male 2.~ mm. ; female 4.0 mm. ; length of forewing, 

 male 3.8 mm. ; female 4.7 mm. General color brown to light brown ; 

 head tawny or flavous, eyes dark, and often a short narrow dark streak 

 on each side of median suture of vertex ; pronotum usually brown ; 

 thoracic dorsum with several more or less prominent, longitudinal brown 

 streaks ; abdomen brown ; venter, legs and antennae flavous. Body large, 

 surface somewhat hairy. 



Head about as broad as mesothorax but not as broad as metathorax, 

 declivous ; vertex about half as long as broad, with a discal depression 



