Fig. 1a in Figs. 16–17. 16 in A Description of the First Instar of Hoperius planatus Fall, 1927 (Coleoptera: Dytiscidae: Colymbetinae: Colymbetini), with Phylogenetic Implications

Fig. 1a, Xylotrechus hovorei Swift, new species, male, dorsal habitus. Fig. 1b, X. nauticus