54 PROCEEDINGS OF THE NATIONAL MUSEUM vol.76 



very weakly developed carina on the posterior aspect of the propo- 

 deiim, the sides of the pronotum have merely a diminishing series of 

 parallel rugulae extending across the center to the alar angle, and 

 the length varies from 8.5 to 10 mm. In the females from Chosen 

 the pronotal carina is somewhat more strongly developed, the carina 

 on the posterior aspect of the propodeum is developed on the lower 

 fourth to half in nearly all specimens, there is often a tendency 

 towards a definite groove on the center of the side of the pronotum 

 not like the regular diminishing rugulae in the Japanese race, and 

 the length is usually about 12 mm. The Chinese females are inter- 

 mediate. Most of them have the pronotal carina more weakly de- 

 veloped across the dorsum, the carina on the dorsal aspect of the 

 propodeum slightly developed, the side of the pronotum more nearly 

 approaching that of the Japanese race, though not so deeply rugulose. 

 Fewer differences have been noted in the males. The genitalia of 

 the males of the Japanese, Chosen, and Chinese races of popilliavora 

 resemble one another and the genitalia of the males of yhyJlophagae^ 

 and present to the writers no differences of diagnostic importance, 



20. TIPHIA PHYLLOPHAGAE. new species 



Plate 3, fig. 17 



Female. — Vertex usually without minute punctures dorsally, rarely 

 with a few along the medial line; with primary punctures denser 

 just back of ocelli than on either side, mostly of second-degree den- 

 sity, with irregular impunctate areas laterad to outside ocelli. Front 

 with primary punctures not denser on anterior half than elsewhere, 

 everywhere of second-degree density, without pronounced impunctate 

 areas. Clypeus with its lateral maigin straight ; impunctate margin 

 of extension defined by an irregular row of punctures, its length two- 

 fifths the distance from apex of clypeus to base of antennae. Man- 

 dibles with a rather shallow but continuous median groove. Pro- 

 notum with its transverse carina usually complete, though weakly 

 developed; punctures of variable size, secondaries not well differen- 

 tiated from primaries; primary punctures densely grouped in a 

 very distinct though irregular transverse discal band and in a small 

 medial patch, on either side of which they become very small and 

 sparse ; lateral extensions of discal band with 3 or 4 punctures much 

 larger than the others; punctures on lateral disks and on angle of 

 discal band just anterior to tegula largely true secondaries. Sides of 

 pronotum with a very definite groove across the center merging with 

 less conspicuous anastomosing grooves anteriorly; conspicuously 

 striate on ventral corner, with a few punctures along the dorsal 

 border. Metanotum usually with a shallow median impression; 



