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The photograph 2 is not Bibio johannis, but B. femoralis, a much rarer Central and South-Eastern European species, which may appear very early in the spring, even in February in some regions. Notice the pear-shaped first tarsomere of hind legs which is very characteristic for this species. In contrast, the first tarsomere of B. johannis although also inflated is parallel-sided (compare with photograph 3 of recent post by Andreas Haselboeck, which is clearly b. johannis). The photo graph 1 above may also be B, femoralis but hind tarsi are not well visible and the identity of this specimen is not certain.
On the other hand, photograph 2 of recent post of P. Walter is also clearly B. femoralis, and not B. johannis.