Extremely Long-Closed Galls of a Social Aphid

Table 1

Some galls of Nipponaphis monzeni whose growth seems to have been delayed.

Gall^a	Date of collection	Height and width in mm	No. of live aphids	No. of dead aphids	Estimated age in month
07102-17	29 Oct. 2007	? × 1.2	2	2	16
07106-8	29 Oct. 2007	2.4 × 1.9	3	1	16
08054-4	2 June 2008	7.6 × 3.4	16	2	24
08054-10	2 June 2008	1.8 × 1.4	3	2	24
08054-21	2 June 2008	4.7 × 2.0	8	2	24
08054-22	2 June 2008	4.9 × 1.9	7	2	24
08054-23	2 June 2008	3.1 × 1.6	6	1	24
08054-31	2 June 2008	4.4 × 2.1	7	1	24
08054-41	2 June 2008	6.9 × 2.7	26	4	24

^aAll galls were collected from Tree S1 in Shinkiba, Tokyo.