Very recently the Dark Energy Survey ( DES ) Collaboration has released their second group of Dwarf spheroidal ( dSph ) galaxy candidates .
With the publicly-available Pass 8 data of Fermi-LAT we search for \gamma - ray emissions from the directions of these eight newly discovered dSph galaxy candidates .
No statistically significant \gamma - ray signal has been found in the combined analysis of these sources .
With the empirically estimated J-factors of these sources , the constraint on the annihilation channel of \chi \chi \rightarrow \tau ^ { + } \tau ^ { - } is comparable to the bound set by the joint analysis of fifteen previously known dSphs with kinematically constrained J-factors for the dark matter mass m _ { \chi } > 250 GeV .
In the direction of Tucana III ( DES J2356-5935 ) , one of the nearest dSph galaxy candidates that is \sim 25 kpc away , there is a weak \gamma - ray signal and its peak test statistic ( TS ) value for the dark matter annihilation channel \chi \chi \rightarrow \tau ^ { + } \tau ^ { -1 } is \approx 6.7 at m _ { \chi } \sim 15 GeV .
The significance of the possible signal likely increases with time .
More data is highly needed to pin down the physical origin of such a GeV excess .