Sympherobius? sp.

Makarkin, Vladimir N., 2022, A brown lacewing pupa (pharate adult) probably belonging to the genus Sympherobius (Neuroptera: Hemerobiidae) from Baltic amber, Zootaxa 5195 (4), pp. 395-400 : 395

Sympherobius? sp. , pharate adult

( Figs 1 , 2 )

Material. Specimen no. 7309, deposited in the collection of Mr. Carsten Gröhn, Glinde ( Germany). A complete pharate adult. Baltic amber (Yantarny). Late Eocene.

Description. Pharate adult 3.4 mm long as preserved (presumed ca. 4.0 mm when extended). Head with large eyes. Maxillary palpus with four visible segments (basal segment not visible): 2nd short, most stout; 3rd and 4th elongate, stout; 5th (terminal) segment elongate, conical (acute apically), with short additional sub-segment (‘false apical segment’: Killington 1936, p. 17). Labial palpus 3-segmented; first segment relatively short; second segment elongate, stout; terminal segment conical, with very narrow, additional sub-segment. Antennae elongate, 44/46-segmented (difficult to count more precisely). Pronotum elongate, rather flat in lateral view; meso- and metathorax large. Legs slender; tibiae of hind legs strongly swollen. Wing pads ca. 1.6 mm long, ca. 0.5 mm wide; venation mostly poorly preserved, only fork of M of forewing clearly determinable. Abdomen: 1st and 8th segments relatively short; 2nd to 7th elongate; dorsal posterior parts of 3th and 4th segments elevated and furnished with two pairs of strongly curved hooks each; structure of apical segments not clear.

Figures

FIGURE 1. Sympherobius? sp., specimen no. 7309, pharate adult as preserved. A, left view; B, right view. Scale bar = 1 mm (both to scale).

FIGURE 2. Sympherobius? sp., specimen no. 7309, details of pharate adult. A, third and fourth abdominal segments, lateral view; B, head, lateral view; C, left wing pads. h3, h4, dorsal hooks on 3th and 4th abdominal segments; las, distal sub-segment of terminal segment of labial palpus; M, media of forewing; mas, distal sub-segment of terminal segment of maxillary palpus. Scale bars = 0.5 mm.