ws |
fw |
flight |
time |
9-12 |
4.2-5.6mm (11) |
Jun-Jul |
? |
lfp |
habitat |
distribution |
status |
jointed/sharp-flowered rush (Juncus articulatus/acutiflorus) |
fen, marsh, damp meadow |
GB |
common |
Male genitalia
Vinculum standard, somewhat produced into a blunt saccus. Tegumen arched; median lobe of gnathos ovoid. Sacculus rectangular; anteroventral margin straight; anterolateral angle strongly produced into an anterior process; lateral margin deeply indent due to the anterior process, very shallowly scalloped posterodorsal to the base of the anterior process; posterolateral angle produced into a short posterior process. Valvula fairly broad and rounded. Costa with an anteroventrally projecting flap at the base of the valvula, which attaches to the base of the posterior process; costa connected at base to base of tegumen and produced medially into a moderate free transtilla. Juxta fairly long, extending dorsally to attach to ventral surface of tunica at its base. Tunica two-pronged, long, the prongs tethered for their basal half and arranged so that one is dorsal to the other. Both prongs have a short apical tooth; that of the dorsal prong is flattened with a scalloped margin and dorsally-directed; that of the more ventral prong is simple and directed to the left. Vesica ⅔ as long as tunica, with a distinct curve towards its base; vesica with a long sclerotisation of its walls, no discrete annulus, the sclerotisation becomes increasingly confined to the concave surface anteriorly. A discrete moderate cornutus apical to a longer comb of ~5 cornuti.
Vinculum standard, somewhat produced into a blunt saccus. Tegumen arched; median lobe of gnathos ovoid. Sacculus rectangular; anteroventral margin straight; anterolateral angle strongly produced into an anterior process; lateral margin deeply indent due to the anterior process, very shallowly scalloped posterodorsal to the base of the anterior process; posterolateral angle produced into a short posterior process. Valvula fairly broad and rounded. Costa with an anteroventrally projecting flap at the base of the valvula, which attaches to the base of the posterior process; costa connected at base to base of tegumen and produced medially into a moderate free transtilla. Juxta fairly long, extending dorsally to attach to ventral surface of tunica at its base. Tunica two-pronged, long, the prongs tethered for their basal half and arranged so that one is dorsal to the other. Both prongs have a short apical tooth; that of the dorsal prong is flattened with a scalloped margin and dorsally-directed; that of the more ventral prong is simple and directed to the left. Vesica ⅔ as long as tunica, with a distinct curve towards its base; vesica with a long sclerotisation of its walls, no discrete annulus, the sclerotisation becomes increasingly confined to the concave surface anteriorly. A discrete moderate cornutus apical to a longer comb of ~5 cornuti.
Female genitalia
Female genital key: Ductus bursae without any sclerotised area; antrum bulbous and hyaline in its anterior half
Ostium central; antrum strongly sclerotised in its posterior ½, the sclerotisation divided into two (lateral) bands, small patch of spicules near junction with ductus bursae. Naturally, the sclerotised bands of the antrum curve to the left, and twist such that the anterior end of the left band becomes ventral to the right band; but this is straightened out with application of a cover slip in slide prep. |