Dichelops

Poock-Da-Silva, Priscila, Barão, Kim Ribeiro & Grazia, Jocelia, 2013, Contributions to the knowledge of Dichelops Spinola: description of a new species of Dichelops (Diceraeus) and of the male of Dichelops (Prodichelops) divisus (Hemiptera: Heteroptera: Pentatomidae: Pentatominae: Carpocorini), Zootaxa 3609 (1) : -

Key to the subgenera of Dichelops (modified from Grazia, 1978)

1. Anterolateral margins of pronotum toothed or crenulated; black spiracles; abdominal punctures darker than abdominal surface; conjuntiva lacking processes; pars intermedialis not twisted; capsula seminalis with or without processes……………………2

1’. Anterolateral margins of pronotum serrated; posterolateral margins sinuated or crenulated ( Fig. 1 ); spiracles and abdominal punctures concolorous with abdominal surface; process of conjunctiva present ( Fig. 10 ); pars intermedialis twisted ( Fig. 15 ); capsula seminalis lacking processes ( Fig. 15 )......................................................... Diceraeus

2. Anterolateral margins of pronotum toothed; posterolateral margins emarginated, with rhomboid projection between humeral angles and hemelytra base; process of conjunctiva absent; capsula seminalis with processes.................... Dichelops

2’. Anterolateral margins of pronotum crenulated; posterolateral margins sinuated, lacking projections; pygophore not dissected; capsula seminalis lacking processes............................................................. Prodichelops

Figures

FIGURES 1 – 2. Dorsal view: 1, Dichelops (Diceraeus) caatinguensis sp. nov.; 2, Dichelops (Prodichelops) divisus (Scales = 1 mm).

FIGURES 3 – 12. Dichelops (Diceraeus) caatinguensis sp. nov., male genitalia 3 – 4, pygophore, posterior view; 5 – 6, pygophore, dorsal view; 7 – 8, pygophore, ventral view; 9, left paramere, dorsal view; 10 – 12, phallus, ventral, dorsal and lateral views, respectively. (cj, conjunctiva; dr, dorsal rim; dsd, ductus seminis distalis; gs, secondary gonopore; pa, paramere; pcj, process of conjunctiva; ph, phallotheca; prph, processus phallothecae; prv, processus vesicae; spdr, superior process of dorsal rim; vr, ventral rim; X, proctiger) (Scales: figs. 3 – 8 = 0.5 mm; 9 – 12 = 0.15 mm).

FIGURES 13 – 15. Dichelops (Diceraeus) caatinguensis sp. nov., female genitalia. 13 – 14, genital plates, ventral view; 15, laterotergites, gonocoxites, and gonapophyses of ninth segment, and ectodermical genital ducts, ventral view (aaf, anterior annular flange; ch, chitinellipsen; cs, capsula seminalis; dr, ductus receptaculi; g 9, gonapophyses 9; gc 9, gonocoxites 9; la 9, laterotergites 9; or, orificium receptaculi; paf, posterior annular flange; pco, pars communis; pi, pars intermedialis; tvi, thickening of vaginal intima; va, vesicular area; X, tenth segment) (Scale: figs. 13 – 14 = 1 mm; 15 = 0.3 mm).