Alloscolytroproctus

Anderson, Robert S., 2008, A review of the Neotropical genus Alloscolytroproctus Hustache, 1929 (Coleoptera; Curculionidae: Dryophthorinae), Zootaxa 1816, pp. 35-43 : 38

Key to the species of Alloscolytroproctus

1. Elytral interval 2 ( Fig. 4 ) with extremely dense, very fine, erect pilose vestiture from anterior half to declivity, similar vestiture also on intervals 3, 5 and 9 at declivity in larger specimens; rostrum with apex not to very slightly expanded apically, width at apex slightly less than distance between eyes; elytra with only posterior red maculae or also with smaller anterior red maculae. Widespread in South America........ ................................................................................................................................... A. peruanus Hustache

1’. Elytral interval 2 ( Figs. 5–6 ) with sparse, fine, linearly arranged setae in posterior third to quarter or with setae absent (although sparse, linearly arranged on sutural and interval 3); rostrum with apex slightly to distinctly expanded apically, width at apex more or less equal to or slightly greater than distance between eyes; elytra with posterior and anterior red maculae....................................................................................2

2. Elytra with sutural and interval 3 with sparse, long, erect, linearly arranged setae; interval 2 slightly widened posteriorly in female, markedly so in male ( Fig. 5 ) with sutural and interval 3 raised, shining and with low, linearly arranged tubercles; pronotum ( Fig. 5 ) with large reddish maculation on each side at about midlength; apex of rostrum distinctly widened, wider than distance between eyes ............................ ................................................................................................................................. A. dominicae Anderson

2’. Elytra ( Fig. 6 ) with intervals 2, 3 and 5 with sparse, long, erect, linearly arranged setae in posterior third to quarter (setae present but short on sutural interval); interval 2 at most slightly widened posteriorly but sutural and interval 3 not modified; pronotum ( Fig. 6 ) black; apex of rostrum very slightly widened, more or less equal to distance between eyes .............................................................................. A. ashei Anderson

Figures

FIGURES 4 – 6. Alloscolytroproctus, pronotum and elytra of males. 4, A. peruanus. 5, A. dominicae. 6, A. ashei.