Howickia

Marshall, S. A., Luk, S. P. L. & Dong, H., 2014, A revision of the New Zealand species of Howickia Richards, Zootaxa 3887 (1), pp. 1-36 : 3

Key to the macropterous Howickia of New Zealand

(Macropterous Howickia differ from other fully winged Sphaeroceridae in New Zealand by the three narrow silver strips on the frons, and by the extremely short, sinuate R2+3).

1 Male sternite 5 with stout teeth along posterior margin; sternite 6 with a simple ventral lobe; sternite 7 with a strongly bifurcate posteroventral lobe ( Fig. 46 ). Female tergite 7 broadly concave posteriorly; tergite 8 with three long anterior lobes but narrowly complete posteriorly ( Fig. 48 ). Apex of female abdomen without conspicuous internal sclerite ( Fig. 48 )........................................................................................... H. oliveri Marshall sp. nov.

- Male sternite 5 with a small posteromedial comb of flat bristles, posterior margin of sternite 5 without prominent teeth ( Fig. 31 ) but ventral lobe of sternite 6 with prominent posterior processes, posteroventral lobe of sternite 7 simple. Female tergite 7 narrowly split posteriorly and tergite 8 split into three parts, small middle part entirely separate from darker and larger lateral parts ( Fig. 33 ). Apex of female abdomen with a large, dark U-shaped internal sclerite, with arms facing posteriorly ( Fig. 33 )........................................................................... H. lepidostylus Marshall sp. nov.

Figures

FIGURES 46 – 48. Howickia oliveri Marshall, sp. n.: 46, epandrium, sternite 8, synsternite 6 + 7, and sternite 5, left lateral; 47, aedeagus and associated structures; 48, female terminalia, dorsal.

FIGURES 29 – 33. Howickia lepidostylus Marshall, sp. n.: 29, epandrium, posterior; 30, epandrium, left lateral; 31, male sternite 5 and synsternite 6 + 7; 32, aedeagus and associated structures; 33, female terminalia, left lateral.