Amberderaeous gigophthalmus Kim, Taszakowski & Jung, 2020

Kim, Junggon, Taszakowski, Artur, Herczek, Aleksander, Kim, Kwang-Ho & Jung, Sunghoon, 2020, A guest from the past: A new genus and a new species of Deraeocorinae (Hemiptera: Heteroptera: Miridae) in Miocene Dominican amber, Zootaxa 4819 (3), pp. 589-594 : 593

Amberderaeous gigophthalmus Kim, Taszakowski & Jung , sp. nov.

( Figs. 1 , 2 )

Type material: [ CNU] Holotype: Holotype male in a 25x10 x 3 mm cabochon shaped piece of Dominican amber ( Fig. 1 ). Dorsal surface flat and ventral surface convex structures .

Description: Male: Body elongate, length 5.61 mm. Coloration. Ground color dark brown. Head: almost pale brown because of pale compound eyes; frons narrowly dark brown; clypeus pale brown; antennae near dark brown; first antennomere entirely dark brown, its apex pale; other antennomeres dark brown except for pale basal part; labium uniformly pale brown. Thorax: pronotum with anterior part and lateral margin dark brown, posterior part slightly paler with dark punctures; pronotal collar dark with mesial pale part; scutellum near dark brown; evaporative area of metathoracic glands pale brown; hemelytra mostly pale, subhyaline, with anterior and posterior parts of corium dark brown; apical part of cuneus dark brown; membrane veins dark brown; legs mostly brown with dark patterning; femur near dark brown, except for pale base; tibia mostly dark, with base and apex pale brown, tibial spine dark brown.Abdomen: pale brown, with pygophore dark brown. Surface and Vestiture. Body glossy, glabrous; antennae with short, dense and dark setae; pronotum with posterior part densely puncture; scutellum impunctate; hemelytra with dark punctures along with claval and R+M veins; tibia with distinct and medium length spines. Structure. Head: hypognathous; vertex narrow, with weak longitudinal sulcus; frons narrow, tapered posteriorly; compound eye extremely large, contiguous, reaching anterior margin of pronotum; antennae shorter than body; first antennomere cylindrical, as thick as second antennomere; second antennomere near cylindrical; third antennomere longer than fourth; third and fourth antennomeres fusiform; proportion of first to fourth antennal segments 0.6: 2.2: 1.0: 0.6; labrum longer than 1/2 of first labial segment; labium exceeding slightly mid coxae; proportion of first to fourth labial segments 0.4: 0.5: 0.6: 0.6. Thorax: pronotum trapezoid, length of pronotal midline slightly longer than 1/2 of basal width; calli swollen; scutellum almost flat in lateral view; anterior width of scutellum longer than 1/2 of basal pronotal width; lateral margin of hemelytra weakly rounded; cuneus broad; legs slender; combined length of hind femur and hind tibia shorter than body length; first and second tarsomeres subequal in length, shorter than third tarsomere, combined length of second and third tarsomeres as long as 2.5x longer than first tarsomere ( Fig. 2D ); claw with basal tooth and setiform parempodia ( Fig. 2E ). Abdomen: not elongate, not reaching apex of cuneus. Genitalia: not examined.

Measurements (in mm): body length: 5.61; head length 0.58; head width including compound eyes: 1.33; vertex width: 0.08; first antennal segment: 0.64; second antennal segment: 2.28; third antennal segment: 1.02; fourth antennal segment: 0.66; anterior pronotal width: first labial segment: 0.38; second labial segment: 0.54; third labial segment: 0.61; fourth labial segment: 0.64; pronotal midline length: 0.95; basal pronotal maximal width (straight): 1.86; anterior scutellar width: 1.20; scutellar midline length: 0.83; commissure length: 1.12; outer embolial margin length (straight): 2.56; outer cuneal margin length (straight): 0.80; maximal width across hemelytron: 1.01; hindleg (femur: tibia: tarsus): 2.08: 3.22: 0.60.

Distributions: Miocene Dominican amber, Dominican Republic.

Etymology: Named after combination of ancient Greek, gig (gigantic) and ophthalmus (eyes), referring to the large compound eyes.

Figures

FIGURE 1. Dominican amber with insect (A) and Amberderaeous gigophthalmus sp. nov. (B). Scale bar: 1 mm.

FIGURE 2. Amberderaeous gigophthalmus sp. nov. A: dorsal view; B: lateral view; C: compound eyes and pronotum; D: hind tarsus; E. claw structure. Scale bar: A–B: 1 mm; C: 0.5 mm; D: 0.3 mm; E: 0.1 mm.