Arthropeina

Key to the adult species of Arthropeina View in CoL

1. Body predominantly pale yellow to reddish yellow ( e.g., Fig. 78 View FIGURES 78 – 83 ); postpronotal lobes and notopleural strip slightly contrasting with scutum color ( e.g., Fig. 60........................................................................... 2 View FIGURES 60 – 65

-. Body predominantly black ( Figs. 82 View FIGURES 78 – 83 , 88 View FIGURES 84 – 89 ); postpronotal lobes and notopleural strip white, strongly contrasting with scutum color ( Fig. 64 View FIGURES 60 – 65 ) ( Brazil, Ecuador and Peru)............................................. A. melanochroma View in CoL , sp. nov.

2. Scutum and scutellum with no black markings or bands ( e.g., Fig. 60 View FIGURES 60 – 65 )............................................ 3

-. Scutum and scutellum with black markings or bands ( e.g., Fig. 62 View FIGURES 60 – 65 ).............................................. 4

3. Hind coxa predominantly dark brown to black ( Fig. 84 View FIGURES 84 – 89 ); projection of posterior margin of genital fork short ( e.g., Fig. 15 View FIGURES 15 – 20 ); spermathecal capsule helicoid, with two coils ( Fig. 18 View FIGURES 15 – 20 ) ( Brazil, States of Mato Grosso, Minas Gerais, Rio de Janeiro, Santa Catarina and São Paulo).................................................................... A. fulva Lindner View in CoL

-. Hind coxa yellow ( Fig. 89 View FIGURES 84 – 89 ); projection of posterior margin of genital fork nearly indistinguishable ( e.g., Fig. 52 View FIGURES 50 – 55 ); spermatheca capsule helicoid with three coils ( Fig. 53 View FIGURES 50 – 55 ) ( Brazil, State of Rondônia; Bolivia)................... A. pseudofulva View in CoL , sp. nov.

4. Length of flagellomere 8 more than three times length of flagellomere 7 ( e.g., Figs. 4 View FIGURES 1 – 7 ); scutum with distinct black markings ( e.g., Fig. 62 View FIGURES 60 – 65 ); anepisternum anteriorly with black markings ( e.g., Figs. 86 View FIGURES 84 – 89 )........................................ 5

-. Length of flagellomere 8 twice length of flagellomere 7 ( Fig. 3 View FIGURES 1 – 7 ); scutum with black markings only laterally ( Fig. 61 View FIGURES 60 – 65 ); anepisternum anteriorly without markings ( Fig. 85 View FIGURES 84 – 89 ) ( Colombia).................................... A. colombiana View in CoL , sp. nov.

5. Medial band of scutum wide, nearly parallel-sided anteriorly, extending from prescutum to scutellum ( Fig. 62 View FIGURES 60 – 65 ); laterotergite with or without black maculae; projection of posterior margin of genital fork very long and acuminate ( e.g., Fig. 27 View FIGURES 27 – 31 ) ( Brazil)................................................................................. A. diadelothorax View in CoL , sp. nov.

-. Medial band of scutum very slender anteriorly, nearly absent at anterior margin, widening abruptly in posterior half ( Fig. 63 View FIGURES 60 – 65 ); laterotergite without black maculae; projection of posterior margin of genital fork long, rounded ( e.g., Fig. 34 View FIGURES 32 – 37 ) ( Brazil, Guyana)................................................................................ A. lindneri View in CoL , sp. nov.