Coridromius confusus, 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 : 48-50

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Coridromius confusus

new species

Coridromius confusus , new species Figures 4, 6, 7Q–S, 9B–H, map 3

HOLOTYPE: Male: INDONESIA: Sulawesi Utara: Dumoga-Bone National Park, Plot A, Fog 11, 0.613 ° N 124.089 ° E, 230 m, 10 Mar 1985, Royal Entomological Society of London: Project Wallace ( AMNH _ PBI 00177949 View Materials ) ( BMNH). GoogleMaps

DIAGNOSIS: Distinguished by the following combination of characters: bilobed proepisternum; apex of scutellum rounded and weakly swollen; mottled coloration; AII with dark brown postmedial band; right paramere with sharp, triangular spicule; left paramere thin and scythelike with gutter closed until apex. This species is very similar to chinensis , minusculus , and punctatus , but the capillarylike left paramere, which is closed until its apex is diagnostic (for further discussion, see chinensis above).

DESCRIPTION: COLORATION (figs. 4, 6): Mottled cream and light brown. Head: Cream to whitish yellow with light brown markings, especially in punctures and foveae; frons with light brown vittae; mandibular and maxillary plates pale medially, becoming brown around edges; buccula pale, dark brown basally; clypeus pale with two sub- medial longitudinal light brown to reddish brown stripes; labrum red; labium pale, brown apically. Antenna: AI cream with median dark brown annulation; AII light orange-brown with dark brown apical annulation, broken by a cream band near its base, tip of segment bright red; AIII and AIV dark brown with cream bases, tip of AIII bright red. Thorax: Pronotal collar cream to light yellow brown, darker along anterior and posterior margins, posterior margin somewhat reddened; pronotum cream to whitish yellow with light brown punctures and darker brown mottling, two small dark brown marks along anterior margin behind eyes; with or without pale medial stripe; callar region sometimes darkened, disc sometimes with two irregular broad, darkened patches, lateral and posterior margins without distinct pale piping; mesoscutum dark orange-brown; scutellum cream to whitish yellow with mottled light brown punctures; thoracic pleura dark reddish brown, posterior margins not pale; proepisternal lobes cream. Hemelytra: Mostly orange-brown with cream markings; clavus darkened basally; embolium orange-brown, dark brown medially with broad cream markings anteriorly and posteriorly; cuneus orange-brown, generally becoming reddened on outer margin and at apex; membrane light brown with mottled darker brown markings; veins pale, bounded by irregular darker brown markings. Legs: Mostly cream to pale yellow with brown markings; pro- and mesofemora with broad, subapical dark brown bands, bothria distinct and pale; metafemur laterally with eight irregular diagonal dark brown stripes ventrally blended into a broad dark brown marking, several punctures at apex tinged red, lateroapical depressions orange-brown, bothria pale; tibiae cream with irregular dark brown bands; metatibial spines dark brown. Abdomen: Light orange-brown with darker brown markings laterally along dorsal margin. SURFACE AND VESTITURE: (figs. 4, 6, 9B–F) Irregular swellings on head with deep somewhat coalescing punctures (fig. 9B); pronotum and propleuron deeply and irregularly punctate; scutellum deeply and irregularly rugulopunctate, impunctate along midline (fig. 9C–D); metepimeron (fig. 9E–F) and hemelytra impunctate; metafemur irreg- ularly punctate; head and dorsum clothed in long, white, decumbent setae. STRUCTURE (figs. 4, 6, 9B–D): Head: Highly contoured; frons strongly tumescent medially, bounded by irregular depressions and three minor swellings laterally and posteriorly; foveae adjacent to eyes and near posterior margin of vertex deep; posterior margin of head medially rounded, not carinate; gena swollen; mandibular plate tumescent (figs. 6, 9B). Thorax: Pronotum broad and somewhat elongate, posteriorly rounded, steeply declivent, anterolateral margin weakly carinate, posterior margins of humeral angles strongly excavate; posterior margin not medially cleft, callar region weakly developed; proepisternum bilobed; posterior margin of metepimeron in the form of a rounded, somewhat triangular lobe; metanotum prominent and flared (fig. 9C–D); scutellum somewhat flattened, apex slightly swollen and rounded (fig. 9C). Hemelytra: Costal margin evenly rounded over entire length. Legs: Metatibial spines long and thick. Abdomen: When viewed laterally, posterior margin of abdominal sternite II not distinctly angular. MALE GENITALIA (figs. 7Q–S, 9G–H): Right paramere rounded with a long, sharp, triangular apophysis (fig. 7R–S); left paramere scythe-shaped, slightly twisted along axis, thick and laterally compressed at base, becoming very thin, gutter completely closed until apex (figs. 7Q, 9G–H); posterior margin of pygophore with long mesal suture and thin fingerlike ventral apical process (fig. 9G–H). FEMALE PARAGENITALIA: Indistinct; first two right laterotergites dorsally membranous and transversely striate (fig. 9C–D), site of copulation unknown.

ETYMOLOGY: The epithet confusus (Latin, ‘‘indistinct, hard to recognize’’) reflects the difficulty in separating this species from chinensis and other related species.

REMARKS: This species was collected in large numbers through canopy fogging by the Royal Entomological Society of London’s Project Wallace expedition in 1985.

HOST: No host records.

DISTRIBUTION: Known only from northern Sulawesi and a single specimen from the Solomon Islands (map 3).

PARATYPES: INDONESIA: Sulawesi Utara: Dumoga-Bone National Park, Plot

A, Fog 13, 0.613 ° N 124.089 ° E, 230 m, 11 Jul 1985, Royal Entomological Society of London: Project Wallace, 33 (AMNH_PBI 00192728–AMNH_PBI 00192730), 5♀ (AMNH_ PBI 00178040–AMNH_PBI 00178042, AMNH_ PBI 00192737–AMNH_PBI 00192738) (AM). 23 (AMNH_PBI 00192726, AMNH_PBI 00192727), 2♀ (AMNH_PBI 00192735, AMNH_ PBI 00192736) (AMNH). 333 (AMNH_PBI 00177976–AMNH_PBI 00178000, AMNH_PBI 00178036–AMNH_PBI 00178039, AMNH_PBI 00178044–AMNH_PBI 00178047), 29♀ (AMNH_ PBI 00178012–AMNH_PBI 00178035, AMNH_ PBI 00178043, AMNH_PBI 00192731–AMNH_ PBI 00192734) (BMNH). 23 (AMNH_PBI 00042586, AMNH_PBI 00042587), 3♀ (AMNH_ PBI 00042588–AMNH_PBI 00042590) (BPBM). Dumoga-Bone National Park, Plot A, Fog11, 0.613 ° N 124.089 ° E, 230 m, 10 Mar 1985, Royal Entomological Society of London: Project Wallace, 1♀ (AMNH_PBI 00177963) (AM). 113 (AMNH_PBI 00177950–AMNH_PBI 00177960), 14♀ (AMNH_PBI 00177961– AMNH_PBI 00177962, AMNH_PBI 00177964– AMNH_PBI 00177975) (BMNH). Dumoga- Bone National Park, Sites 10 & 11, Tumpah Transect, 0.613 ° N 124.089 ° E, 1040 m, Feb 1985, J. D. Holloway, Light Trap, 1♀ (AMNH_ PBI 00192739) (BMNH).

OTHER SPECIMENS EXAMINED: SOLO- MON ISLANDS: Guadalcanal: Honiara, 9.42805 ° S 160.05472 ° E, 200 m, Jan 1973, N. L. H. Krauss, 13 (AMNH_PBI 00042142) (BPBM).


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