Aprionus odini sp. nov.

urn:lsid:zoobank.org:act: 58A9F002-97C7-4794-8C5D-6238685DE080

Fig. 9

Diagnosis

The gonostylus has a characteristic, large, rounded lobe subapicomedially (↓, Fig. 9A), a clearly convex basal portion, a small basolateral apodeme, and a moderately large tooth apically. The tegmen is 3.5 times as long as wide, therefore longer than in any other species of the styloideus group, and evenly tapered towards the apex; large finger pairs are absent, but there are numerous tiny little finger vestiges dorsosubapically (↓). The anterior corners of the subanal plate are visible as two weakly contoured rectangles, each with a comma-shaped sclerotization (↓). The gonocoxal apodemes are so long that the dorsal bridge, which is subtriangular, extends far beyond the ventroanterior gonocoxal edge (↓). The postfrons bears a single pair of setae; antennal translucent sensilla are either single-pointed or two- to three-pointed, or -branched; the neck of the fourth flagellomere is longer than the node (Fig. 9B); the palpus is 4-segmented; and postocular bristles number 8–10.

Etymology

Odin, depicted as one-eyed and accompanied by various animal companions, is the god associated with healing, death, knowledge, sorcery, battle, and more.

Material examined

Holotype

SWEDEN: ♂, Öland, Mörbylånga, Västerstad elm-forest Nature Reserve, 56.42° N, 16.42° E, mature elm forest, Malaise trap, M. and C. Jaschhof leg. with the Swedish Malaise Trap Project (trap 3001, collecting event 3056), 6 Aug.–6 Sep. 2014 (NHRS, no. CEC193).

Paratypes

SWEDEN: 6 ♂♂, Öland, Borgholm, Rönnerum-Abbantorp NR, 56.75° N, 16.62° E, mixed broadleaf forest, MT, MCJ leg., 22 Aug.–30 Sep. 2015 (NHRS, nos CEC 362– CEC 367).

Other material studied

SWEDEN: 2 ♂♂, Öland, Borgholm, Skepparsäng NR, 57.31° N, 16.47° E, mixed coniferous / broadleaf forest, MT, MCJ leg., 24 Aug.–1 Oct. 2015 (DEI, nos CEC 368– CEC 369); 2 ♂♂, Öland, Mörbylånga, Färjestaden, 56.63° N, 16.47° E, backyard with shrub and young birch trees, MT, MCJ leg., 19 Aug.– 6 Oct. 2015 (DEI, nos CEC 370– CEC 371).

Differential diagnosis

A species very similar to Aprionus odini sp. nov. is Aprionus cardiophorus, which differs in the gonostylus lacking a subapical lobe and the tegmen constricted subapically and lacking finger vestiges (Spungis & Jaschhof 2000: fig. 6).

Distribution and phenology

Sweden (Öland). Adults were collected from August to October in various different woodlands.