Ommatides duodentis, Hoey-Chamberlain & Weirauch, 2019

Hoey-Chamberlain, Rochelle & Weirauch, Christiane, 2019, Taxonomic revision of the New World big-eyed minute litter bug genus Ommatides Uhler (Hemiptera: Schizopteridae), Zootaxa 4585 (1), pp. 73-99 : 80-81

Ommatides duodentis sp. nov.

Figures 1–3 , 5–7 , 10

urn:lsid:zoobank.org:act:7B3545B2-EC7A-4351-B538-2E2E552A6359

Material. Type material. Holotype, male, slide-mounted in Canada balsam: COLOMBIA: Putumayo: PNN La Paya Cabaña Viviano Cocha , 0.11667°S 74.93333°W, 320 m, 20 Sep 2001 – 26 Sep 2001, D. Campos, Malaise trap (ED_3548) (UCR_ENT 00100847) (IAvH). Paratypes: COLOMBIA: Amazonas: PNN Amacayacu Mocagua , 3.68333°S 70.25°W, 150 m, 24 Apr 2000 – 05 May 2000, A. Parente, Malaise trap, 1 female (ED_0511) (UCR_ENT 00074567) (IAvH) . Vichada: PNN El Tuparro Pie Cerro Tomas , 5.35°N 67.85°W, 250 m, 0 1 May 2001 – 12 May 2001, I. Gil, Malaise trap, 1 female (ED_3213) (UCR_ENT 00099931) (IAvH) . Cundinamarca: PNN Chingaza Sendero Suasie , 4.51667°N 73.75°W, 3100 m, 19 Jan 2001 – 03 Feb 2001, L. Cifuentes, Malaise trap, 1 female slide-mounted in Canada balsam (ED_786) (UCR_ENT 00077969) (IAvH) . PERU: Loreto: 80 km NE Iquitos, Explorama Lodge, 1 km up Rio Yanamono from Amazon River , 3.23773°S 72.74148°W, 161m, 0 1 Sep 1992 – 05 Sep 1992, P. Skelley, 1 female (UCR_ENT 00011927) ( FSCA) .

Diagnosis. Recognized among species of Ommatides by both males and females being macropterous with long membrane extending just past tip of abdomen; males with the lobes of the dorsally expanded 1st labial segment with ~8 short, black setae on either side of the labial groove and 1 longer, apically expanded, light-colored seta submedially; 4th labial segment with 2 pairs of processes, proximal processes lateral, long and slightly curved, with apices acute, distal processes dorsolateral and short; 3rd labial segment dorsally only represented by small sclerite; spiracle 8 set upon fully sclerotized tubercle of tergum 8 process. Most similar to O. ornatus and O. tridentis sp. nov., but distinguished by proximal processes of 4th labial segment slightly curved, and apices acute.

Description. Male: macropterous with large membrane extending just past tip of abdomen; total body length: 1.94 mm; body elongate ovoid. COLORATION: head, pronotum, and forewings mostly brown; labium yellow; processes and tip of labium black; area surrounding claval suture pale; scutellum dark brown; legs mostly yellow with black tarsi; and genital capsule and genitalia tan to dark brown ( Fig. 1 ). SURFACE AND VESTITURE: lobes of dorsally expanded 1st labial segment submedially with 1 longer, apically expanded, light-colored seta and ~8 short, black setae on either side of labial groove; forefemur anteriorly with row of 7 spicules and 1 single long, stout seta; 2nd tarsomere of hind leg with 2 stout seta anteroventrally. STRUCTURE. HEAD: disc declivous anteriorly; dorsal lobe of 1st labial segment large, dorsally pointed in lateral view ( Fig. 2 ); 2nd segment elongate; 3rd labial segment represented by small lateral sclerite; 4th labial segment with 2 pairs of processes, proximal processes lateral, long and slightly curved, with apices acute; distal processes dorsolateral and short. THORAX: ratio of pronotal collar length to pronotum length 0.24; posterolateral margin of pronotum somewhat deeply and somewhat narrowly concave; ratio of height to length of forefemur 0.30; tarsal formula 3-3-3; ratio of length of hind tibia to width of pronotum 1.17; venation of macropterous forewing as in Fig. 7 ; Cu relatively straight; rc2 triangular; dc1 5-sided; cub longer than rc; rc longer than dc; and dc longer than bc. ABDOMEN AND GENITALIA: as in genus description ( Fig. 9 A,B ), with fully sclerotized spiracle 8 associated with tergum 8 process ( Fig. 6 ).

Female: macropterous with membrane reaching tip of abdomen; total body length: 1.53–1.75 mm; body elongate ovoid. COLORATION: as in male ( Fig. 1 ). SURFACE AND VESTITURE: labium as in generic description; vestiture on legs as in male. STRUCTURE. HEAD: as in generic description. THORAX: ratio of pronotal collar length to pronotum length 0.18–0.23; collar depressed below rest of pronotum ( Fig. 1 ); postnotum subrectangular; posterolateral margin of pronotum deeply and somewhat narrowly concave; ratio of height to length of forefemur 0.18–0.25; tarsal formula 2-2-3; ratio of length of hind tibia to width of pronotum 0.81–0.95; venation of macropterous forewing as in male. ABDOMEN AND GENITALIA: as in genus description ( Fig. 9 C,D ), with spiracle 8 set upon fully sclerotized tubercle of tergum 8 process ( Fig. 6 ).

Etymology. Named for the two pairs of processes on the labium, combining Latin duo meaning “two” and dentes meaning “teeth”.

Distribution. Currently only known from low elevation sites across Colombia.

Macrohabitat and Collecting method: Amazonia rain forest and flood forest; Malaise Trap.

Figures

FIGURE 1. Dorsal habitus images of Ommatides spp. males and females.

FIGURE 2. Lateral habitus images of Ommatides spp. males and females. Black arrows pointing our 4th labial segment processes (O. duodentis male, O. tridentis male) and sparse setation of foretibia (O. nudus male)

FIGURE 3. Ventral habitus images of Ommatides males and females. Black arrow pointing our 4th labial segment processes (O. duodentis male).

FIGURE 5. Labial structures of Ommatides spp. males in frontal view. Shading indicating degree of sclerotization. bubuccula; ca—conjunctival appendage; cly—clypeus; els—enlarged labial segment; mdpl—mandibular plate; mxpl—maxillary plate; proc—process; set—setae; spn—spine

FIGURE 6. Male genitalia of Ommatides spp.in dorsal view. Arrow indicating location of (or estimation of) abdominal spiracle 8 on tergum 8 process. ano—anophore; anop—anophoric appendage; at—anal tube; ca—conjunctival appendage; lpleft paramere; rp—right paramere; s9—sternum 9; t8—tergum 8; t8p—tergum 8 process; v—vesica.

FIGURE 7. Forewing of Ommatides spp. for males of all and females of selected species. An1—1st anal vein; An2—2nd anal vein; ac—anal cell; bc basal cell; Cu—cubital vein; cub—cubital cell; dc—discal cell; M—media; R—radius; R1—1st branch of radius; R2—2nd branch of radius; R3—3rd branch of radius; rc1-3—radial cells along costal margin; Sc—subcosta; sccsubcostal cell; tc—trapezoidal cell; wc—wing coupling organ.

FIGURE 9. Male and female genitalic features of selected species of Ommatides. (A) Ommatides duodentis sp. nov.: male genitalia in dorsal perspective (ED_3548; UCR_ENT 00100847); (B) Ommatides nudus sp. nov.: male genitalia in ventral perspective (ED_3542; UCR_ENT 00025951); (C) Ommatides parvidentis sp. nov.: female genitalia in dorsal perspective (ED_4109; UCR_ENT 00098890); (D) Ommatides nudus sp. nov.: female genitalia in lateral perspective (ED_3543; UCR_ENT 00025952). ano—anophore; anop—anophoric appendage; ag—anterior gonapophysis; at—anal tube; caconjunctival appendage; g—gonoplacs; lp—left paramere; pg—posterior gonapophysis; rp—right paramere; s7—sternum 7; s8—sternum 8; s9—sternum 9; spgd—spermathecal gland duct; spgl—spermathecal gland; spr—spermathecal reservoir; spth—spermatheca; st—styloid; t 7, 8, 9—tergum 7, 8, 9; t8p—tergum 8 process; t10—tergum 10; t10p—process of tergum 10; v—vesica.

FIGURE 10. Map of all species of New World Hypselosomatinae currently captured in the AEC database. Species of Ommatides are indicated by colored stars, females of Ommatides not identified to species by colored rectangles. Specimen records for the remaining genera of New World Hypselosomatinae, Glyptocombus, Hypselosomops, and Hypsohapsis, are shown as greyscale symbols.