The time-series of Walker circulation index (WCI) in this study shows the strengthening of the Walker circulation in recent years. To further understand the large-scale features related to the WCI strengthening, a difference between the averaged meteorological variables in two time periods 1999-2013 and 1984-1998 is analyzed. The difference in 850 hPa stream flows between the two periods shows that the anomalous easterlies (anomalous trade wind) are dominant due to the strengthening of anomalous anticyclonic circulations at the subtropical Pacific of both hemispheres. The difference between the averaged zonal atmospheric circulations over 5oS-5oN in the two periods confirms that upward flows are strengthened at the tropical western Pacific and downward flows are strengthened at the tropical central and eastern Pacific in recent years. It matches the WCI strengthening in recent years. The time-series of tropical cyclone (TC) genesis frequency from July to September shows that a mean TC genesis frequency from 1999-2013 decreases compared to that of the time period 1984-1998. The monsoon trough in the period 1984-1998 was located in the further east direction and stronger than that in the period 1999-2013. TCs in the recent period that are generated in further west than TCs in the past period moved from the west. Thus, the TC intensity along the coasts in East Asia becomes weaker in recent period. The intensification of Walker circulation in recent years is related to the weaker TC intensity in East Asia through strengthened anomalous anticyclones at the subtropical western Pacific.

Phycitinae is one of the subfamilies of Pyralidae, about 4000 phycitinae species in the world (Solis and Mitter 1992), and around 300 species of 110 genera have been reported in China (Li and Ren 2005). The subfamily of Phycitinae is characterized by the following characteristics: both wings are long and narrow, chaetosema present; forewing with 11 veins or less, R3 and R4 stalked at base or fused completely, both male and female with only one frenulum; gnathos rod-shaped or coniform; valva with costa well developed, transtilla free or connected at top, aedeagus cylindrical, male usually with culcita; ductus bursae from corpus bursae. The larvae of phycitinae are leafrollers, leafminers or products pests. Their distribution is throughout the world (Munroe and Solis, 1999). As a NE region, Jilin province lies in the center of northeast part of China, borders by North Korea, Far East of Russia, Heilongjiang, Liaoning and Inner Mongolia. Until now, only 20 species of phycitinae have been reported from here, accordingly, the faunistic inventory is by no means completed, and to survey the diversity of phycitinae is significant for systematic study in China. In this study, we identified 35 species belonging to 19 genera, of them, 2 species are reported for the first time in China, and 12 species are newly reported from Jilin Province. The materials examined come from the collection of Incheon National University and Northeast Forestry University.