Vol. VIII] ESSIG & KViV .WA-SOME JAFAXESE APHlDIDAi 101 



0-1; V, 2-3; VI, 1-3 (not counting the usual ones in the 

 process). Cornicles black. On Kara-matsu, Larix leptolepis 

 Murr., Nikko, June 9, 1913. Collection number 78. (The 

 color notes were given under number 82?). 



Lachnus, species 

 Represented only by apterous specimens. Length 5 mm., 

 width 3 mm. Prevailing color shiny black with white dorsal 

 markings. Antennae pale-brown and black, hairy, half as 

 long as the body, with the large circular sensoria distributed 

 as follows: III, none; IV, 1-3; V, 2-3; VI with the usual 

 ones. Cornicles black, hairy and very wide at base. On 

 Tsuga, Tstiga sieholdi Carr., Nikko, June 12, 1913. Collec- 

 tion number 79. 



Pterochlorus tropicalis Van der Goot 

 (Pterochlorus japonicus Mats.) 



Figures 33 and 34 



Winged viviparous female— Selected from nine good 

 specimens. Length 2.8 mm., width 1 mm. Prevailing 

 color shiny black throughout. Body very hairy. Antennae 

 black, covered with short hairs; lengths of the articles: 

 (another specimen) I, 0.13 mm.; II, 0.10 mm.; Ill, 0.78 

 mm.; IV, 0.34 mm.; V, 0.34 mm.; VI, 0.20 mm. (base 0.13 

 mm., spur 0.07 mm.); total 1.89 mm. The sensoria ai-e 

 circular and distributed in a row as follows: (selected speci- 

 men) III (right) 11, (left) 8; IV (right) 3, (left) 3; V 

 (right) 1, (left) 2; VI with usual number; others have the 

 following: III 13-20, IV 5-9, V 2-4. Rostrum long, reach- 

 ing beyond the middle of the abdomen. Wings infuscate 

 with light areas in the front pair as shown in the accom- 

 panying drawing. Hind wings with a white line just below 

 radius vein; a decided network of small lines on the front 

 wings. Length of front wings 4.5 mm. Cornicles wide at 

 base, hairy, black, length (one example) 0.25 mm., diam- 

 eter at the base 0.58 mm. Cauda black, rounded and very 

 hairy. 



Apterous viviparous females — Five good specimens. 

 Length 4.2 mm., width 2.5 mm. Prevailing color shiny 



