Coridromius fomangsu,

Tatarnic, Nikolai J. & Cassis, Gerasimos, 2013, Description of eight new species of the traumatically inseminating plant bug genus Coridromius (Heteroptera: Miridae: Orthotylinae: Coridromini), European Journal of Taxonomy 35, pp. 1-24: 8-9

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Coridromius fomangsu

sp. nov.

Coridromius fomangsu  sp. nov.

Fig. 2View Fig C-F


Distinguished from all other species by a combination of the following features: the uniform yelloworange colouration, the unique form of the right paramere, and the callosite region with two broad swellings bordered laterally by deep sulci.


Named after the type locality of South Fomangsu Forest Reserve.

Type material


♂, GHANA: Ashanti, South Fomangsu Forest Reserve , 34.581° N – 114.443° W, 23 Jan. 1966, D. Leston ( AMNH_PBI 00192741) ( BMNH).



1 ♂, locality data same as for holotype, 23 Jan 1966, D. Leston ( AMNH _PBI 00192742) ( BMNH).


BODY LENGTH. ♂ (n = 2): 3.30-3.57 mm.

COLOURATION ( Fig. 2View Fig C-D). Uniform pale yellow- to pale orange-brown. Head: Frons without vittae ( Fig. 2CView Fig). Clypeus slightly embrowned, mandibular plate, maxillary plate and gena tinted red, labrum and labium pale orange brown, labium apically embrowned. Antennae: mostly pale orange-brown. AI weakly embrowned apically, clavate apex of AII weakly embrowned, AIII and AIV brown. Thorax: Uniformly pale orange-brown ( Fig. 2View Fig C-D). Thoracic pleura slightly paler along trailing margins. Hemelytra: Uniformly pale orange-brown, with faint brown chevron on corium, membrane slightly paler and translucent ( Fig. 2DView Fig). Legs: Uniformly pale orange-brown, metafemur without transverse brown banding. Abdomen: Uniform pale orange-brown.

SURFACE AND VESTITURE ( Fig. 2View Fig C-D). Mostly impunctate. Head shallowly punctuate ( Fig. 2CView Fig). Scutellum medially weakly rugulose ( Fig. 2DView Fig). Body with hairlike setae, setae on anterior and dorsal surface of head short and adpressed, with longer and semi-erect setae on lateral and ventral surfaces ( Fig. 2View Fig C-D). Antennae clothed in semi-decumbent hairlike setae interspersed with a few more erect, thin, spinelike setae ( Fig. 2CView Fig). Pronotum with sparse distribution of short, reddish-brown reclining setae, hemelytra with sparse distribution of short, pale, semi-reclining setae and shorter, reddish-brown setae. Abdomen with slightly more dense coating of longer, semi-erect setae. Femora with thick, reddish-brown, semierect setae, longer on ventral surface. Tibiae with thick, pale semi-erect, setae, metatibia with two rows of thick, caudally directed spines.

HEAD. Approximately 5.6 x as wide as eye ( Fig. 2CView Fig) in anterior view. Frons weakly tumescent, vertex with shallow transverse depressions adjacent to eyes, posterior margin broadly medially rounded, not carinate ( Fig. 2CView Fig). Buccula swollen. Antennae: AII basally thin, apically clavate ( Fig. 2View Fig C-D).

THORAX. Pronotum broad, collar thick and broadly triangular, callosite region with two broad swellings bordered laterally by deep sulci, lateral and posterior margins rounded, posterior margin slightly declivent ( Fig. 2View Fig C-D). Proepimeron bilobed. Posterior margin of metepimeron truncate. Scutellum swollen and rounded ( Fig. 2DView Fig).

HEMELYTRON. Costal margin thinly carinate, weakly flared posteriorly ( Fig. 2DView Fig).

ABDOMEN. Posterior margin of abdominal sternite II not distinctly angular in lateral view.

MALE GENITALIA. Pygophore with mesal longitudinal suture elongate, right side of suture with apical apophysis lying transversely across pygophore margin ( Fig. 2FView Fig). Left paramere a short, thick, angular scythe slightly twisted along its axis, right paramere cleft, with inner lobe elongate and outer lobe short and rounded ( Fig. 2EView Fig).



No host records.


South Fomangsu National Park, Ghana.


Coridromius fomangsu  is one of three species now known from Ghana (the others being C. tafo  sp. nov. described herein, and C. lestoni Tatarnic & Cassis, 2008  ), and one of five now known from Africa. All three Ghanan species are readily distinguished by size, colouration and male genitalia. In particular, C. fomangsu  sp. nov. is the only species in the genus with a right paramere of this form.


American Museum of Natural History