Dichelops furcatus (Fabricius, 1775)

Smaniotto, Lisonéia F. & Panizzi, Antônio R., 2015, Interactions of selected species of stink bugs (Hemiptera: Heteroptera: Pentatomidae) from leguminous crops with plants in the Neotropics, Florida Entomologist 98 (1), pp. 7-17 : 11

DICHELOPS FURCATUS (F.)

Dichelops furcatus , known as the green-belly stink bug, occurs in Argentina, Bolivia, Brazil, Paraguay and Uruguay ( Grazia 1978). Apparently, it is more common in areas with lower temperatures. For example, in Brazil it is recorded more ofen in the cooler southern states of Rio Gande do Sul, Santa Catarina, and Paraná ( Lopes et al. 1974; Grazia 1978; Chocorosqui 2001; Chiaradia et al. 2011).

Dichelops furcatus has been reported as a pest of soybean for some time ( Rizzo 1976; Panizzi et al. 1977). More recently, it has become a pest of wheat, Triticum aestivum L., and common oat, Avena sativa L. ( Poaceae ) ( Pereira et al. 2010), reducing seed germination ( Rosa-Gomes 2010); on another Poaceae (corn, Zea mays L.) it causes the plant to wilt, and eventually the young plants may die ( Chocorosqui 2001). The increase in its abundance has been attributed to the adoption of no-tillage cultivation systems in southern Brazil, where the bug is found underneath crop residues during colder months. As temperatures rise, it moves out to feed on wheat; it may feed subsequently on seedlings of soybean and of corn, increasing its abundance during the pod development of soybean (A. R. Panizzi, unpublished).

In Rio Grande do Sul, Brazil, D. furcatus has been reported feeding on sunflower heads ( Frota & Santos 2007). In this area it may be found on trees such as Buddleja thyrsoides Lam. ( Scrophulariaceae ), Myrciaria tenella (D. C.) Berg ( Myrtaceae ) ( Costa et al. 1995), Eugenia uniflora Berg. ( Myrtaceae ), Gochnatia polymorpha Less. ( Asteraceae ), Miconea cinerascens Miq. ( Melastomataceae ) ( Garlet et al. 2010), and on Prunus myrtifolia (L.) Urb. ( Rosaceae ) (L. F.Smaniotto, unpublished).

The list of plants on which D. furcatus has been recorded in the neotropics includes 32 plant species belonging to 13 families, from which 7 species were considered to be reproductive hosts ( Table 5).

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*Plants on which bug can complete development.

(1) Silva et al. 1968 ( Brazil, AM, ES, MG, PA, PE, RJ, RS, SP); (2) Lopes et al. 1974 ( Brazil, RS); (3) Rizzo 1976 ( Argentina); (4) Panizzi & Machado- Neto 1992 ( Brazil, PR); (5) Frota & Santos 2007 ( Brazil, RS); (6) GonÇalves et al. 2008 ( Brazil, RJ); (7) Ribeiro et al. 2009 ( Brazil, PR); (8) Golin et al. 2011 ( Brazil, MT); (9) Krinski & Pelissari 2012 ( Brazil, PA); (10) Krinski 2013 ( Brazil, PA).