Alcaeorrhynchus grandis (Dallas): an eventual predator of Chlosyne lacinia saundersii Doubleday & Hewitson on sunflower in Northern Paraná State

Predatory effect of Alcaeorrhynchus grandis on grub and pupa of Coccinella septumpunctata

“…Peak densities of stink bugs in soybean were observed during the full-pod (R7) developmental stage. Malaguido et al (1998) were observe that Alcaeorrhynchus grandis (Dallas) (Hemiptera: Pentatomidae: Asopinae) preying on larvae of Chlosyne lacinia and sunflower (Helianthus annuus L.) at an experimental station in northern Parana State, Brazil in January-February 1998.…”

A Comprehensive Natural History Review of Chlosyne lacinia (Geyer, 1837; Lepidoptera: Nymphalidae): Patterns of Phenotypic Variation and Geographic Distribution

“…Fire ants, Solenopsis xyloni (Formicidae: Hymenoptera), are common predators of C. lacinia in pre-adult life stages (Clark & Faeth 2003). Predatory stink bugs (Pentatomidae: Hemiptera), including Alcaeorrhynchus grandis and Podisus nigrispinus have also been documented as larval predators of C. lacinia (Malaguido & Panizzi 1998, Dominguez da Silva et al 2009). C. lacinia is not preferred by A. grandis, but A. grandis will consume C. lacinia if other food sources are unavailable (Malaguido & Panizzi 1998).…”

“…Predatory stink bugs (Pentatomidae: Hemiptera), including Alcaeorrhynchus grandis and Podisus nigrispinus have also been documented as larval predators of C. lacinia (Malaguido & Panizzi 1998, Dominguez da Silva et al 2009). C. lacinia is not preferred by A. grandis, but A. grandis will consume C. lacinia if other food sources are unavailable (Malaguido & Panizzi 1998). P. nigrispinus has been used for biological control for C. lacinia in agricultural sunflower fields in Brazil (Dominguez da Silva et al 2009).…”

Stink Bugs (Pentatomidae)

“…The genus include only two species, which can be identifi ed by the direction of the spined humeral angle: it is bent CF Schwertner) somewhat forward in A. grandis and directed laterad in A. phymatophorus . The species A. grandis is the largest Neotropical asopine and is associated to several cultivated ecosystems, attacking lepidopterous larvae (Malaguido and Panizzi 1998a ;De Clercq 2000 ).…”