90 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



Rostrum reaching to the 2nd coxae. Prothorax with two pairs 

 of large dorsal finger-like tubercles and one pair of large 

 lateral ones, all supporting a number of spines; mesothorax 

 with many small tubercles supporting each a spine, those on the 

 metathorax, if present, very obscure. Front wings 2.6 mm. 

 long with venation and markings as shown in the accompany- 

 ing drawing. Legs pale green with the tips of the tarsi dusky 

 or black. Abdomen with three pairs of large finger-like tuber- 

 cles on the dorsum near the base, two pairs of small ones just 

 behind these and three or four pairs of large somewhat trun- 

 cate ones along the sides. All of these tubercles are pale dusky 

 and each has a number of spines. Cornicles pale, widest at base, 

 somewhat constricted in the middle and 0.1 mm. long. Cauda 

 green, distinctly knobbed, with quite a long stipe, 0.1 mm. in 

 length. Anal plate pale and deeply constricted in the middle. 



Nymphs — Pale-yellow and green with the bodies covered 

 with long capitate hairs. 



Host plant — On the underside of the leaves of Kunugi, 

 Quercus serrata Thunb. 



Locality — Tokyo. 



Date of collection — May 26, 1913, 



Collection number — 63. 



Remarks — Named from the conspicuous knobbed or capi- 

 tate hairs on the antennae. 



Myzocallis macrotuberculata, new species 

 Figure 28 



Winged viviparous female (Type) — Selected from thir- 

 teen good specimens. Length 1.5 mm., width 0.6 mm. Pre- 

 vailing color green with dark abdominal tubercles. Head with 

 a number of long stout spines arising from small, somewhat 

 dusky tubercles. Antennae pale-green with the apical portions 

 of ni-VI dusky or black, with many long hairs ; lengths of the 

 articles: I, 0.07 mm.; H, 0.05 mm.; HI, 0.42 mm.; IV, 0.30 

 mm. ; V, 0.21 mm. ; VI, 0.25 mm. (base 0.13 mm., filament 0.12 

 mm.) ; total 1.30 mm. Sensoria on III circular, in a row the 

 full length of the article, 9 on left member and 8 on the right. 

 Paratypes show a variation of from 7 to 11, the majority hav- 



