TABLE 2. Morphological comparison between H in Hydroporus queneyi sp. n. from southern France, a new semi-subterranean diving beetle of the Hydroporus normandi-complex (Coleoptera, Dytiscidae, Hydroporini)

TABLE 2. Morphological comparison between H. queneyi sp. n. and other western Palearctic species of the H. normandi - complex.
H. queneyiH. galloprovincialisH. normandiH. lluciH. productusRatio total length / maximum width2.12–2.31 (this study)2.18–2.36 (Manuel 2013)2.05–2.33 (Fery 1999)2.14–2.25 (Fery 1999)2.08–2.21 (Fery 1999)Maximum pronotum widthAt posterior anglesSlightly anterior to posterior angles in most specimensAt posterior anglesAt posterior anglesAt posterior anglesPronotum at posterior angles broader than elytra at shouldersYes (most specimens)Yes (most specimens)No (except some specimens of subspecies normandi alhambrae)NoNoLateral margins of elytraStrongly parallel (until about half of elytral length)Strongly parallel (until about two-thirds of elytral length)Less strongly parallelStrongly parallel (until about half of elytral length)Strongly parallel (until about half of elytral length)Punctation on elytraFineFineFine (even finer in subspecies normandi ifnii)FineExtremely fineReticulation on pronotum and elytraStrongly impressedWeakly impressedStrongly impressed (less so in subspecies normandi ifnii)Weakly impressedVariablePubescence on dorsal and ventral surfacesWeakStrongWeak (except in subspecies normandi alhambrae, strong)WeakWeakMetacoxal linesWeakly divergent (as in Fig. 2)Weakly divergent (as in Fig. 3)More strongly divergent (as in Fig. 4)Weakly divergent (as in Fig. 5)Weakly divergentPosterior cubital vein (posterior wing)Present (Fig. 26)Absent in most specimens (in some very short) (Fig. 27)Present (Fig. 28)VariablePresentVentral outline of median lobe of aedeagus in lateral view below apexSlightly sinuated (Figs 6, 8)Slightly sinuated (Fig. 10)Slightly sinuated (Fig. 12)Straight (Figs 14, 16)Slightly sinuated (Figs 36 and 38 in Manuel 2013)Proximal extremity of gonocoxaWeakly to strongly dilated (Figs 21, 22)Dilated (Fig. 23)Not dilated (Fig. 24)Not or weakly dilated (Fig. 25)Dilated