Hylobittacus minimus (Carpenter, 1954) Krzemiński, 2007

Krzemiński, Wieslaw, 2007, A revision of Eocene Bittacidae (Mecoptera) from Baltic amber, with the description of a new species, African Invertebrates 48 (1), pp. 153-162 : 159

Hylobittacus minimus (Carpenter, 1954) , comb. n.

Figs 5 , 7C

Bittacus minimus: Carpenter 1954: 39 , fig. 4D.

Diagnosis: Separated from all species of Hylobittacus in Baltic amber by a combination of: Sc ending opposite fork of Rs and epiandrial lobe broad basally.

Redescription:

Forewing (based on specimen 674/2, Fig. 5B ) 13 mm long; single pterostigmal cross-vein; Sc ending opposite fork of Rs; cubital cross-vein far before fork of Mb; no additional cross-veins in distal radial and medial cells.

Male genitalia ( Figs 5A–C , 7C ): epiandrial lobe short, without dorsal incision, broad basally; basistyle small, rather narrow.

Holotype (examined): MCZ 5205 (old no. 5113), male, condition as in Carpenter (1954).

Other material examined: DEIM 674/2, male with only two wings, fragment of thorax and abdomen partially obscured by milky cloud (Hoffeins coll.); BMNH In. 18855, entire female partially obscured by milky cloud; MP 1/3/552/04, poorly preserved female, only three wings and fragments of legs recognisable, abdomen obscured by milky cloud.

Figures

Fig. 5. Hylobittacus minimus (Carpenter): (A) holotype MCZ 5205, general appearance; (B, C) male 674/2, reconstruction of forewing and genitalia. Scale bars: Figs 5A, 5B = 5 mm, Fig. 5C = 1 mm.

Fig. 7. Epiandrial lobes of Baltic amber Bittacidae in lateral aspect: (A) Bittacus succinus Carpenter; (B) Hylobittacus fossilis (Carpenter); (C) Hylobittacus minimus (Carpenter); (D) Hylobittacus picteti sp. n. Scale bar = 1 mm.