Coridromius fomangsu, Tatarnic and Gerasimos Cassis & Nsw & Nsw, 2013

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

Coridromius fomangsu sp. nov.

Fig. 2 C-F

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Diagnosis

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.

Etymology

Named after the type locality of South Fomangsu Forest Reserve.

Type material

Holotype

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

Paratype

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

Description

BODY LENGTH. ♂ (n = 2): 3.30-3.57 mm.

COLOURATION ( Fig. 2 C-D). Uniform pale yellow- to pale orange-brown. Head: Frons without vittae ( Fig. 2C ). 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. 2 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. 2D ). Legs: Uniformly pale orange-brown, metafemur without transverse brown banding. Abdomen: Uniform pale orange-brown.

SURFACE AND VESTITURE ( Fig. 2 C-D). Mostly impunctate. Head shallowly punctuate ( Fig. 2C ). Scutellum medially weakly rugulose ( Fig. 2D ). 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. 2 C-D). Antennae clothed in semi-decumbent hairlike setae interspersed with a few more erect, thin, spinelike setae ( Fig. 2C ). 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. 2C ) in anterior view. Frons weakly tumescent, vertex with shallow transverse depressions adjacent to eyes, posterior margin broadly medially rounded, not carinate ( Fig. 2C ). Buccula swollen. Antennae: AII basally thin, apically clavate ( Fig. 2 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. 2 C-D). Proepimeron bilobed. Posterior margin of metepimeron truncate. Scutellum swollen and rounded ( Fig. 2D ).

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

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. 2F ). 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. 2E ).

FEMALE PARAGENITALIA. Unknown.

Host

No host records.

Distribution

South Fomangsu National Park, Ghana.

Remarks

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.

Figures

Fig. 2. Photographs and scanning electron micrographs of Coridromius eremnos sp. nov. and C. fomangsu sp. nov. — A-B. Coridromius eremnos sp. nov. A. Dorsal habitus. B. Head and pronotum, anterior view. — C-F. Coridromius fomangsu sp. nov. C. Head and pronotum, anterior view. D. Dorsal habitus. E. Male genitalia, posterior view. F. Male genitalia, posteroventral view. LP = left paramere, MLS = mesal longitudinal suture of pygophore, RP = right paramere, VAP = ventral apical process of pygophore.