Très bien, cette vue qui montre que :
14(1) Abdomen from the on 2nd and 3rd

Donc on passe au point suivant :
15(56) Legs with at least the front knees red or rarely yellowish-brown (non, donc on saute au point 56)
56(15) Legs entirely black (oui, donc on avance au point 57)
57(64) Abdomen entirely black (four species) (non, donc on saute au point 64)
64(57)
65 (70) Abdomen without any black on the
70(65) Abdomen with some of the
71 (78) Antenna distinctly longer than abdomen and very slender, with segment 8 more than 4 times longer than its
78 (71) Antenna at most about as long as the abdomen; segment 8 at most little more than 3 times longer than broad
79 (80) Antenna usually short and stout; segment 8 scacerly twice as long as its
80 (79) Antenna longer and less robust; segment 8 about 3 times longer than its
81 (82) Length 8.5-10.0 mm . Penis valve in Fig. 200 ferrugatus Lepeletier
82 (81) Length 8.5 mm . Penis valve in Fig. 207 rosti Konow
J'arrive à ça...

Faudrait vérifier le point 71 : les antennes. Je ne les trouve pas nettement plus longues que l'abdomen.