I04 n n-B -Ai m m: <i!^ .& ^. n o m m Jk m m 



Hab. — Hokkaido (Sapporo). 

 F . P . — Ptclca trifoliata . 

 Date of Coll. — June 23, 1917. 

 Nom. Jap. — Kaba-iisu-huchiabura. 



5. Mesocallis fagicola "• sp. 



Much resembles M. ptclcac Mats., but differs from the latter in tlie following 

 points : — 



Body much smaller, paler in color. Eyes dark brown. Rostrum at the apex 

 not infuscated. Antennae whitish, at the apices of the joints not infuscated, the 

 3rd joint with about 6 oblong sensoria all over the surface. Wings hyaline, veins 

 very fine, nearly colourless, the first oblique at the base with a fuscous spot, 

 stigma nearly colourless. Cornicles scarcely infuscated, cauda as large as the 

 lateral lobes of the lower genital plate. Legs nearly hyaline, with very light yel- 

 lowish shade. 



Length — 0.6 mm.; antennae 0.7 mm.; exp. tegm. 2.6 mm. 

 Nymph — Pale yellowish, with many spatulate, long, whitish bristles, 

 some of the spatulae at the apices, especially at the posterior part 

 being fuscous ; antennae and legs paler than the botly ; eyes red. 

 Length — 0.8 mm.; antennae 0.5 mm. 

 Hab. — Hokkaido (Sapporo). 

 F. P. — Fagus silvatica (Buna). 

 Date of Coll. — Jul)' 20, 1917. 

 Nom. Jap. — Buna-iisn-buchialmra. 



3. Neocallis n. g. 

 Closely allied to Mesocallis Mats., but differs from the latter as follows: — 

 Antennae much robuster, all the joints, except the first two, with oblong 

 sensoria in one row, situatetl crossweis, those of the 3rd joint being semiring-like 

 and occupying the outer half surface, and extending all over the whole length; 

 anterhinarial scarcely shorter than the postrhinarial, acutely pointed. Wings 

 nearly the same, but the 2nd oblique at the base somewhat nearer to the first than 

 the 3rd ; 2nd furcal originates rather nearer to the apex of the first. Abdomen 

 on the lateral sides with tubercular [)rojections ; cornicles shorter, cauda globular, 

 larger. Empodial hair at the apex rounded and clavate. 



