Sat 2014-02-15 
From early this February: a caterpillar, probably of the large yellow underwing moth, Noctua pronuba (Lepidoptera: Noctuidae). This species overwinters as a caterpillar which comes out to feed on warm days.
Photo taken in Whiteknights Park, Reading, UK, on 2014-02-01.
Fri 2014-02-14 
The asexual form (anamorph) of Hypoxylon howeanum (= Hypoxylon howeianum) growing on a fallen branch from a beech tree (Fagus sp) an oak tree (Quercus sp).
I took this specimen home with me but it didn't yield any spores:
First photo and specimen taken in Whiteknights Park, Reading, UK, on 2014-02-09.
Thu 2014-02-13 
From early last summer: a pair of Cercopis vulnerata (Hemiptera: Cercopidae).
Photo taken in Whiteknights Park, Reading, UK, on 2013-06-02.
Wed 2014-02-12 
A brown crust fungus, probably Hypoxylon petriniae, growing on a branch fallen from an ash tree (Fraxinus excelsior).
I took this specimen home with me:
This yielded the following spores (magnification x600, field width about 86um):
These are about 10 x 4.5um which is just a little thinner than the 8.8-11.5(-13) x 4.8-6um given for Hypoxylon petriniae given here.
First photo and specimen taken in Whiteknights Park, Reading, UK, on 2014-02-09.
Tue 2014-02-11 
An ash tree, Fraxinus excelsior. In winter the twigs end in black buds:
And some branches still hold ash keys:
Photos taken in Whiteknights Park, Reading, UK, on 2014-02-09.
