Burmacader grandis, HEISS & GUILBERT, 2021

HEISS, ERNST & GUILBERT, ERIC, 2021, A new species of Burmacader Heiss & Guilbert, 2013 from Cretaceous Burmese amber (Hemiptera, Heteroptera, Tingidae), Palaeoentomology 4 (1), pp. 30-33 : 30-31

Burmacader grandis sp. nov.

( Figs 1 , 2A )

Holotype. Holotype male in a 20×24× 5mm cabochon shaped piece of Burmese amber, dorsal and ventral surface structures partly obscured by detritus, air bubbles and untransparent layer of resin. The specimen SC3798 is designated as holotype and deposited in author’s collection at the Tiroler Landesmuseum ( CEHI) as BUB-TING-12 .

Etymology. The epithet of this species refers to its relatively large size from ‘grandis’ (Latin), meaning large, wide.

Diagnosis. Burmacader grandis sp. nov. differs from both congeners at first glance by larger size 4.5mm (vs. 2.8 mm in B. multivenosus , 3.15 mm in B. lativentris ) and by larger size and different shape of paranota ( Fig. 2A, B, C ).

Description. Body length 4.5 mm, lateral margins of paranota and hemelytra beset with small setigerous tubercles and erect setae on antennae.

Head. Declivous (partly obscured, reconstruction in Fig. 2A ), surface punctate, without spines or tubercles; antennae slender, segments II and IV subequal in length, segment III longest (exact measurement not possible); eyes globose.

Pronotum. About 1.7 times as wide as long, attenuated anteriorly, lateral margins bisinuate with large wing-shaped expanded paranota with 7 rows of areolae at widest part, extending along 4/5 of lateral margin, surface of disk punctate and raised on posterior lobe, without carina and posterior projection.

Scutellum. Triangular with knob like apex, surface punctate.

Hemelytra. Submacropterous distinctly surpassing apex of abdomen; clavus triangular with 6–7 rows of punctures as pronotum; costal area with 4 rows of areolae at middle and 5 at anterior indentation, these areolae larger than those of subcostal- and discoidal area; subcostal area wide with 9–10 rows of areolae at middle and 10–12 transverse veinlets; discoidal area lanceolate with 6–8 rows of areolae and 5–6 transverse veinlets; sutural area with two rows of areolae along discoidal area widening to three rows at membrane but posteriorly reduced to one areola; a small hypocostal lamina developed with 2–3 small areolae on anterior 1/3 of ventral side of costal vein; stenocostal area lacking.

Venter. Pro-, meso- and metasternum with median labial groove, labium reaching to posterior coxae.

Legs. Long and slender, tarsi two-segmented with long claws, pulvilli not discernable.

Measurements. Length 4.5 mm; width of pronotum across paranota 2.15 mm; width of abdomen 2.5 mm.

Figures

FIGURE 1. Burmacader grandis sp. nov. A and B, Habitus holotype, dorsal view. C, Ditto, head and pronotum. D, Burmese amber stone with B. grandis inclusion. Scale bars = 1 mm.

FIGURE 2. Burmacader, reconstruction of habitus of holotypes, dorsal view. A, B. grandis sp. nov. B, B. multivenosus. C, B. lativentris. Scale bars = 1 mm.