Coridromius lestoni, Tatarnic & Cassis, 2008

Tatarnic, N. J. & Cassis, G., 2008, Revision Of The Plant Bug Genus Coridromius Signoret (Insecta: Heteroptera: Miridae), Bulletin of the American Museum of Natural History 2008 (315), pp. 1-95 : 63-64

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Coridromius lestoni

new species

Coridromius lestoni , new species Figures 4, 6, 12G–I, map 2

HOLOTYPE: Male: GHANA: Ashanti: Tafo , 6.7333 ° N 1.6167 ° W, 278 m, 28 Jul 1967, D. Leston ( AMNH _ PBI 00178008 View Materials ) ( BMNH). GoogleMaps

DIAGNOSIS: Recognized by its small size, near-uniform dark brown coloration, uniquely flared hemelytra, and the distinctive groove running along the lateral abdominal tergites.

DESCRIPTION: COLORATION (figs. 4, 6): Mostly dark brown with yellow markings. Head: Mostly light to dark orange-brown, frons with faint, dark brown vittae; inner ocular margins and posterior margin of head with yellow piping; depressions above and below lateral tumescences dark brown; clypeus yellow to orange-brown, darker apically, with faint brown markings basally; mandibular plates yellow; maxillary plate and buccula dark brown with faint yellowing on lower margins; gena yellow; labrum red; labium orange-brown, becoming darker at apex. Antenna: AI yellow with broad subbasal dark brown annulation; AII light yellow-brown with yellow subapical annulation and dark brown annulation; AIII and AIV missing. Thorax: Pronotal collar dark brown; pronotum dark brown, only faintly paler along midline, lateral and posterior margins yellow; thoracic pleura dark orangebrown and dark brown; proepisternum with yellow lobes; posterior margin of propleuron yellow; posterior margin of metepimeron faintly yellow; mesoscutum dark brown; scutellum dark brown with yellow apex. Hemelytra: Dark brown, basally and laterally slightly paler; fascia at apex of embolium yellow; cuneus dark brown; membrane faintly brown with darker brown veins. Legs: Procoxae yellow; meso- and metacoxa dark brown, trochanters pale; pro- and mesofemora dark brown with yellow apices; metafemur light orange-brown to dark brown, with contrasting yellow and dark brown diagonal stripes on outer surface, three bothria colored yellow; pro- and mesotibiae yellow with two or three irregular dark brown markings basally, apically tinted orange; metatibia yellow with irregular dark brown banding; tarsi yellow. Abdomen: Orange-brown, posterior margins of sternites black, dorsolateral margins with black and yellow markings. SURFACE AND VESTI- TURE (figs. 4, 6): Head, hemelytra, and metepimeron impunctate; pronotum and scutellum with deep, widely spaced punctation; propleuron faintly punctate; head and dorsum clothed in long, white, decumbent setae. STRUCTURE (figs. 4, 6): Head: Frons weakly tumescent medially, swelling of frons extending to vertex; lateral swellings on vertex adjacent to eyes broad with welldefined depressions above and below; posterior margin of vertex carinate and rounded. Thorax: Pronotum broad, posteriorly round- ed and declivent, anterolateral margins not upturned, depressed adjacent to callar region, submarginal region of humeral angles strongly excavate, callar region weakly defined; proepisternum bilobed; posterior margin of metepimeron truncate, apical angle forming a small, rounded lobe; metanotum prominent and flared; scutellum flattened. Hemelytra: Embolium carinate and sharply flared outward posteriorly, with a distinct raised fascia at apex of R+M vein; costal fracture deep. Legs: Metatibial spines long and thick. Abdomen: When viewed laterally posterior margin of sternite II not sharply angular; dorsolateral margins of laterotergites with shallow, sclerotized groove running lengthwise along the abdomen. MALE GENITA- LIA (fig. 12G–I): Right paramere small, triangular, and curved (fig. 12H–I); left paramere scythelike, apex broadly acute (fig. 12G); posterior margin of pygophore with long mesal suture and long, fingerlike ventral apical process. FEMALE PARAGEN- ITALIA: No visible external paragenitalia.

ETYMOLOGY: Named after Dennis Leston, who collected both the holotype male and the paratype female.

REMARKS: The shape of the hemelytra and the longitudinal grooves along the dorsolateral margins of the abdomen are unique to this species.

HOST: Unknown.

DISTRIBUTION: This species is known only from Ghana (map 2).

PARATYPE: GHANA: Ashanti: Burso, 6.69 ° N 1.63 ° W, 08 Jul 1969, D. Leston, Pyrethrum knockdown, 1♀ (AMNH_PBI 00178009) (BMNH).


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