Coridromius boianotum, 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 : 31-32

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Coridromius boianotum

new species

Coridromius boianotum , new species Figures 4, 6, 7D–G, 8B, map 1

HOLOTYPE: Male: SOLOMON ISLANDS: Malaita: Andalimu-Ngarafata (SW Fiu Riv- er), 8.71666 ° S 160.68333 ° E, 1 m, 19 Sep 1957, J.L. Gressitt, Acalypha sp. ( Euphorbiaceae ) ( AMNH _PBI 00041490) ( BPBM type# 16725) ( BPBM).

DIAGNOSIS: Distinguished by the flared anterolateral margins of the pronotum (fig. 4). C. boianotum shares similar coloration with bulbopella and ruwenzorii , but can be readily distinguished from these by its unilobate proepisternum and lack of visible paragenitalia. It is also similar to carinatus , though with much less pronounced anterolateral projections of the pronotum. Both species have similar coloration and texture, a weakly curved left paramere, and a lack of any groove, fold, or suture along the posterior margin of the pygophore.

DESCRIPTION: COLORATION (figs. 4, 6): Head: Pale yellow-orange; frons without vittae; labium pale, brown apically. Antenna: Pale, apex of AII slightly brown. Thorax and abdomen: Concolorous yellow-orange, paler ventrally; scutellum with two prominent lateral brown spots. Legs: Concolorous yellow-orange, metafemur without dark diagonal stripes. SURFACE AND VESTI- TURE (figs. 4, 6): Head smooth and impunctate; pronotum and scutellum glossy with deep, widely spaced punctation; hemelytra, propleuron, and metepimeron impunctate; setae on dorsum short, white, and simple, most setae knocked off examined specimens. STRUCTURE: (figs. 4, 6) Head: Frons and vertex forming a confluent broad medial tumescence, becoming shallowly depressed adjacent to eyes; vertex without tubercles adjacent to eyes; posterior margin of head medially rounded, not carinate, without transverse depressions adjacent to eyes. Thorax: Pronotum broad, lateral and posterior margins thin and carinate, anterolateral margins strongly flared and lobed, submarginal region of humeral angles weakly excavated, posterior margin weakly upturned, callar region weakly defined; proepisternum unilobed; posterior margin of metepimeron truncate; metanotum not prominent and flared; scutellum swollen. Hemelytra: Costal margin evenly rounded and thinly carinate. Legs: Metatibial spines short and thin. Abdomen: When viewed laterally, abdominal sternite II not angular. MALE GENITALIA (figs. 7D–G, 8B): Right paramere small, broadly triangular (fig. 7E–G); left paramere weakly curved (figs. 7D, 8B); ventral margin of pygophore simple and weakly biconvex, without fold, groove, or mesal suture on left side (fig. 8B). FEMALE PARAGENITALIA: No visible external paragenitalia.

ETYMOLOGY: The epithet boianotum is derived from Latin (boia, ‘‘collar’’) and

Greek (noton, ‘‘back’’) and reflects the expanded anterolateral projections of the pronotum.

HOST: Known only from the genus Pipturus ( Urticaceae ).

DISTRIBUTION: Known from the Solomon Islands and Vanuatu (map 1).

PARATYPES: SOLOMON ISLANDS: Guadalcanal: Roroni, 35 km E. of Honiara, 9.45 ° S 160.23333 ° E, 10 m, 08 May 1964, R. Straatman, 13 (AMNH_PBI 00041492) (BPBM). Malaita: Auki, 8.767 ° S 160.7 ° E, 21 Sep 1957, J.L. Gressitt, Pipturus sp. ( Urticaceae ), 1♀ (AMNH_PBI 00041491) (BPBM). Western Province: New Georgia Islands: New Georgia Island, Munda, 8.31666 ° S 157.25 ° E, 15 Jul 1959, J.L. Gressitt, 13 (AMNH_PBI 00041493), 1♀ (AMNH_PBI 00041494) (BPBM). VA- NUATU: Shefa: Epi Island: Lowekewou, 16.6 ° S 168.1667 ° E, 31 Aug 1979, W.C.

Gagne, ( Urticaceae ), 1♀ (AMNH_PBI 00041506) Pipturus sp. ( Urticaceae ), 63 (AMNH_PBI 00041495–AMNH_PBI 00041500), 3♀ (AMNH_ PBI 00041501–AMNH_PBI 00041503) (BPBM). Vaemali, 16.567 ° S 168.183 ° E, 08 Aug 1967, J. & M. Sedlacek, 2♀ (AMNH_ PBI 00041504, AMNH_PBI 00041505) (BPBM).


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