The Biology of Cephalonomia Tarsalis (Ash.), a Vespoid Wasp (Bethylidae: Hymenoptera) Parasitic on the Sawtoothed Grain Beetle1

Powell, D. F.

doi:10.1093/aesa/31.1.44

Cited by 34 publications

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“…The parasitic wasp, Cephalonomia tarsalis (Hymenoptera: Bethylidae), is a specialist parasitoid of larvae of the sawtoothed grain beetle, Oryzaephilus surinamensis (Coleoptera: Silvanidae) (Powell 1938), and the merchant grain beetle, O. mercator (Fauvel). Wasps use chemical cues to locate their host larvae, attack and paralyze the hosts, and oviposit on the outside of the host.…”

Section: Introductionmentioning

confidence: 99%

“…As in many other bethylids (Griffith and Godfray 1988), this oviposition patch is aggressively defended against conspecific females (personal observations). Within the patch, females lay between one and four eggs on one host larva, depending on the number of available hosts (Powell 1938). If one egg is laid, it typically results in female offspring (Cheng et al 2003).…”

Section: Introductionmentioning

confidence: 99%

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Mate Finding in the Parasitic Wasp Cephalonomia tarsalis (Ashmead): More than one way to a Female’s Heart

2009

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The parasitic wasp, Cephalonomia tarsalis (Hymenoptera: Bethylidae), parasitizes larvae of the sawtoothed grain beetle, Oryzaephilus surinamensis (L.) (Coleoptera: Silvanidae), and is used for biological control of this worldwide pest of stored grain. To study the hypothesis that C. tarsalis not only mates at its natal patch but also uses olfactory cues to find mating partners elsewhere, we investigated semiochemical use by male C. tarsalis. Olfactometer experiments revealed that male C. tarsalis are arrested by odors emanating from the cocoons of conspecifics, from young unmated females, and from feces of the host. Dodecanal, which was identified from extracts of filter paper contaminated by young females, had an arresting effect on males but not on females and was, therefore, considered as a sex pheromone. These findings indicate that C. tarsalis is a species with partial local mate competition. Males mate with females: 1) at the emergence site following location of females by sex pheromones from their cocoons, and 2) after dispersal from the natal patch following location of females directly by dodecanal and indirectly by unidentified sexual kairomones from host feces.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mate Finding in the Parasitic Wasp Cephalonomia tarsalis (Ashmead): More than one way to a Female’s Heart

2009

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“…These parasites are nominally host-specific and can be important biocontrol agents (Flinn and Hagstrum, 1995; Archives of Insect Biochemistry and Physiology 1996; Schöller and Flinn, 2000). Although basic life history data have been gathered on some of these parasites (C. waterstoni Gahan: Rilett, 1949;Finlayson, 1950;Howard and Flinn, 1990; C. stephanoderis Betrem: Barrera et al, 1989;Abraham et al, 1990;Lauzière et al, 2001; C. tarsalis (Ashmead) : Powell, 1938; C. hyalinipennis Ashmead: Pérez-Lachaud 1998;Pérez -Lachaud and Hardy, 1999), less is known of the biochemistry or chemical ecology of them. Howard (1992) has reported on the cuticular hydrocarbon composition of C. waterstoni and its host, Cryptolestes ferrugineus (Stephens) and of C. tarsalis (Howard, 1998) and its host, the saw-toothed grain beetle .…”

Section: Introductionmentioning

confidence: 99%

Cuticular hydrocarbons of the ectoparasitic wasp Cephalonomia hyalinipennis (Hymenoptera: Bethylidae) and its alternative host, the stored product pest Caulophilus oryzae (Coleoptera: Curculionidae)

Howard

Pérez‐Lachaud

2002

Arch Insect Biochem Physiol

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Cuticular hydrocarbons of an ectoparasitic wasp attacking two beetle hosts have been identified and examined for the influence of age, gender, mating status, and host on hydrocarbon composition. The 37 wasp hydrocarbons identified consisted of a series of n-alkanes (C16 to C33), 3-, 5-, 9-, 10-, 11-, and 12-methyl alkanes and a series of Z-7 and Z-9 monoenes (C23:1 to C27:1). One C25:2 diene was found. No effects of hydrocarbon composition as a function of age, gender, or mating status were found for the wasps. Wasps reared on Hypothenemus hampei, however, had 12/37 significant abundance differences to those reared on Caulophilus oryzae, although all but one of these differences were for components in less than 2% relative abundance. The C25:2 diene from wasps reared on H. hampei was present in about 10% whereas from wasps reared on C. oryzae it was present in about 2%. The hydrocarbons of one host for this wasp, the coffee berry borer (Coleoptera: Scolytidae), have been previously reported [Howard and Infante, Ann. Entomol. Soc. Am. 89:700-709 (1996)]. The hydrocarbons of the alternative host, C. oryzae (Coleoptera: Curculionidae) consists of n-alkanes (C17 to C31), 3-, 4-, 5-, 7-, 9-, 11-, 12-, 13-, 14-, and 15-methyl alkanes, and a series of dimethyl alkanes of the series 3, 17-; 5, 11-; 5, 17-; 7, 11-; 7, 13-; 13, 17-; and 15, 19-. No unsaturated hydrocarbons were found. No significant differences in hydrocarbon composition were found between male and female C. oryzae. Hydrocarbon patterns of four species of Cephalonomia are compared and shown to be species-specific. The data are discussed in terms of ecological and physiological parameters.

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“…Lachaud and Hardy, 1999;Powell, 1938;van Emden, 1931;Yamasaki, 1982), depending on 373 environmental conditions, while without hosts longevity is typically between 10-20 days 374 (Yamasaki, 1982). We also found that unmated H. sylvanidis lived longer than mated females,…”

mentioning

confidence: 56%

“…in contrast to C. tarsalis in which both mated and unmated females lived an average of 35 376 days (Powell, 1938). Longevity can play an important role in the impact of parasitoids on pest 377 populations (Hausmann et al, 2005).…”

mentioning

confidence: 99%

Reproductive biology of Holepyris sylvanidis (Hymenoptera: Bethylidae)

et al. 2017

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Please cite this article as: Amante, M., Schöller, M., CW Hardy, I., Russo, A., Reproductive biology of Holepyris sylvanidis (Hymenoptera: Bethylidae), Biological Control (2016), doi: http://dx.doi.org/10. 1016/j.biocontrol. 2016.12.004 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

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The Biology of Cephalonomia Tarsalis (Ash.), a Vespoid Wasp (Bethylidae: Hymenoptera) Parasitic on the Sawtoothed Grain Beetle1

Cited by 34 publications

References 0 publications

Mate Finding in the Parasitic Wasp Cephalonomia tarsalis (Ashmead): More than one way to a Female’s Heart

Mate Finding in the Parasitic Wasp Cephalonomia tarsalis (Ashmead): More than one way to a Female’s Heart

Cuticular hydrocarbons of the ectoparasitic wasp Cephalonomia hyalinipennis (Hymenoptera: Bethylidae) and its alternative host, the stored product pest Caulophilus oryzae (Coleoptera: Curculionidae)

Reproductive biology of Holepyris sylvanidis (Hymenoptera: Bethylidae)

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