Coridromius marmoreus, 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 : 64-65

Coridromius marmoreus , new species Figures 5, 6, 12J–L, 14A–C, map 3

HOLOTYPE: Male: PHILIPPINES: Rizal: Mount Montalban, Wa-wa Dam , 14.73016 ° N 121.185 ° E, 150–200 m, 02 Mar 1965, H.M. Torrevillas ( AMNH _ PBI 00041573 ) ( BPBM type# 16731) ( BPBM).

DIAGNOSIS: Easily distinguished from oth- er species by its unique mottled coloration and thin, platelike pronotal margins. This species is superficially similar to chinensis , confusus , minusculus , and punctatus , however, none of these other species has spots along the pronotal or hemelytral margins. Additionally, the right paramere of marmoreus lacks a spined apophysis, the posterior margin of the pygophore lacks a mesal suture, the anterior lobe of the proepisternum is much shorter than the posterior lobe and the propleuron lacks punctation.

DESCRIPTION: COLORATION (figs. 5, 6): Head: With weak vittae on frons, pale with mottled brown maculations; clypeus with two submedial longitudinal brown stripes; mandibular plate yellow to orange above, brown below; maxillary plate yellow to orange, margins fading to brown; buccula yellow, somewhat brown to orange basally; labrum brown; labium orange-brown, darker brown apically. Antenna: AI cream with brown basal annulation; AII light orange-brown with slightly darker brown apical annulation; AIII and AIV brown. Thorax: Pronotal collar yellow with brown anterior and posterior margins; pronotum mostly yellow with brown punctures, humeral angles and callar region lightly brown, two small dark brown markings on anterior margin immediately behind eyes, two to four more transverse brown markings midway up pronotum, and two thin dark brown markings on posterior margin, lateral margins with three or four dark brown spots; mesoscutum brown; scutellum yellow-brown, mottled, with deep brown punctures, two dark brown marks on lateral margins; thoracic pleura mainly light orange-brown with yellow posterior margins; proepisternum with apices of both projections yellow, the remainder light brown; mesepisternum pale above, abruptly becoming dark brown at venter. Legs: Mostly yellow, pro- and mesofemora with a few small brown markings and an irregular brown band near apex; metafemur yellow at base with two or three diagonal brown stripes blending into irregular brown mottling midway along femur, bothria dark brown; tibiae pale with irregular brown banding, metatibial spines dark brown. Hemelytra: Mottled yellow and brown with patterned darker and paler markings; clavus brown at midpoint, with a dark brown spot at the tip and irregular dark brown marks throughout; endocorium and embolium with irregular brown markings; lateral margins of embolium with irregular dark brown spots; cuneus with irregular, dark brown line following inner and posterior margin, lateral margin pale; membrane tan with veins brown. Abdomen: Reddish brown to yellowish brown, with brown maculations on each segment below spiracles. SURFACE AND VESTITURE (figs. 5, 6, 14A–B): Head irregularly punctate, especially in shallow depressions adjacent to eyes; pronotum, scutellum, hemelytra, and metafemur irregularly punctate; propleuron impunctate (fig. 14A); metepimeron impunctate (fig. 14B); head and dorsum sparsely covered in short, pale, decumbent setae. STRUCTURE (figs. 5, 6, 14A–B): Head: Highly contoured; frons medially tumescent and laterally depressed, with minor swellings adjacent to eyes; depressions adjacent to eyes shallow; posterior margin of head broadly rounded medially, not carinate. Thorax: Pronotum broad, callar region weakly defined, anterolateral margins weakly explanate, lateral and posterior margins thin and platelike, submarginal region of humeral angles weakly excavated, posterior margin weakly upturned; proepisternum bilobed, with anterior projection much shorter than posterior (fig. 14A); posterior margin of metepimeron with small lobe projecting from upper corner (fig. 14B); metanotum prominent and flared. Hemelytra: Costal margin evenly rounded, thin, and platelike. Legs: Metatibial spines long and thick. Abdomen:

When viewed laterally, posterior margin of abdominal sternite II not angular. MALE GENITALIA (figs. 12J–L, 14C): Right paramere rectangular (fig. 12K–L); left paramere scythe-shaped, apex very slender (figs. 12J, 14C); posterior margin of pygophore without groove, fold, or mesal suture, ventral apical process absent (fig. 14C). FEMALE PARA- GENITALIA: No visible external paragenitalia.

ETYMOLOGY: This species is named from the Latin marmoreus , referring to its mottled coloration.

HOST: Unknown.

DISTRIBUTION: Collected in large numbers in Luzon, Philippines, with single specimens also found in Papua New Guinea and north Queensland, Australia (map 3).

PARATYPES: PHILIPPINES: Rizal: Luzon, Montalban Dam, 14.73016 ° N 121.185 ° E, 16 Mar 1960, T. C. Maa, 1♀ ( AMNH _ PBI 00041624 ) ( AM). Mount Montalban , Wa-wa Dam , 14.73016 ° N 121.185 ° E, 175 m, 02 Mar 1965, H. M. Torrevillas, 13 ( AMNH _ PBI 00041621 ) ( AM). 33 ( AMNH _ PBI 00041577 – AMNH _ PBI 00041579 ) ( AMNH). 33 ( AMNH _ PBI 00041574 – AMNH _ PBI 00041576 ), 1♀ ( AMNH _ PBI 00041580 ) ( BPBM) ; 03 Mar 1965, H. M. Torrevillas, 33 ( AMNH _ PBI 00041581 – AMNH _ PBI 00041583 ), 1♀ ( AMNH _ PBI 00041584 ) ( BPBM) ; 06 Mar 1965, H. M. Torrevillas, 23 ( AMNH _ PBI 00041588 , AMNH _ PBI 00041589 ), 1♀ ( AMNH _ PBI 00041590 ) ( AMNH). 33 ( AMNH _ PBI 00041585 – AMNH _ PBI 00041587 ) ( BPBM) ; 08 Mar 1965, H. M. Torrevillas, 2♀ ( AMNH _ PBI 00041592 , AMNH _ PBI 00041593 ) ( AMNH). 13 ( AMNH _ PBI 00041591 ) ( BPBM) ; 09 Mar 1965, H. M. Torrevillas, 2♀ ( AMNH _ PBI 00041594 , AMNH _ PBI 00041595 ) ( AMNH). 1♀ ( AMNH _ PBI 00041596 ) ( BPBM) ; 14 Mar 1965, H. M. Torrevillas, 2♀ ( AMNH _ PBI 00041597 , AMNH _ PBI 00041598 ) ( BPBM) ; 16 Mar 1965, H. M. Torrevillas, 1♀ ( AMNH _ PBI 00041599 ) ( BPBM) ; 17 Mar 1965, H. M. Torrevillas, 63 ( AMNH _ PBI 00041600 – AMNH _ PBI 00041605 ), 1♀ ( AMNH _ PBI 00041606 ) ( BPBM) ; 18 Mar 1965, H. M. Torrevillas, 1♀ ( AMNH _ PBI 00041623 ) ( AM). 13 ( AMNH _ PBI 00041607 ) ( BPBM) ; 19 Mar 1965, H. M. Torrevillas, 13 ( AMNH _ PBI 00041608 ), 2♀ ( AMNH _ PBI 00041609 , AMNH _ PBI 00041610 ) ( BPBM) ; 22 Mar 1965, H. M. Torrevillas, 1♀ ( AMNH _ PBI 00041611 ) ( BPBM) ; 23 Mar 1965, H. M. Torrevillas, 3♀ ( AMNH _ PBI 00041612 – AMNH _ PBI 00041614 ) ( BPBM) ; 24 Mar 1965, H. M. Torrevillas, 13 ( AMNH _ PBI 00041615 ), 2♀ ( AMNH _ PBI 00041616 , AMNH _ PBI 00041617 ) ( BPBM) ; 25 Feb 1965, H. M. Torrevillas, 1♀ ( AMNH _ PBI 00041619 ) ( AM). 13 ( AMNH _ PBI 00041618 ) ( BPBM) ; 08 Mar 1965 – 12 Mar 1965, H. M. Torrevillas, 13 ( AMNH _ PBI 00041620 ) ( AM) ; 04 Mar 1965, H. M. Torrevillas, 13 ( AMNH _ PBI 00041622 ) ( AM) .

OTHER SPECIMENS EXAMINED: AUSTRA- LIA: Queensland: 1 km SE of Mt. Cook, 15.3 ° S 145.16 ° E, 13 Oct 1980, T. Weir, 13 (AMNH_PBI 00201295) (QM). Packers Creek, via Portland Roads, 16.48333 ° S 145.46666 ° E, 06 Dec 1985, G. Monteith and D. Cook, Pyrethrum knockdown, 1♀ (QM). PAPUA NEW GUINEA: Madang Prov.: Baiteta, 5.017 ° S 145.75 ° E, 01 Jul 1996, O. Missa, Light Trap, 13 (ULB).