<abstract xmlns="http://www.w3.org/1999/xhtml">

<p><italic>Metaparasitylenchus hypothenemi</italic> is a nematode that naturally parasitizes <italic>Hypothenemus hampei</italic> in a coffee-producing region in Chiapas, Mexico. This study investigated changes in the attraction of parasitized borers to light. We compared the attraction of adult <italic>H. hampei</italic> females (parasitized and uninfected) to 14 different light wavelengths (350–670 nm) with a control (570 nm, yellow) under laboratory conditions. The response ranges of non-parasitized and parasitized borers were 370–650 nm and 340–650 nm, respectively. The attraction curve showed a similar shape in both borer groups (parasitized and non-parasitized), but a wide wavelength range (380–590 nm) attracted more parasitized than non-parasitized borers. The maximum response of the uninfected borers occurred at 520 nm (green), while parasitized borers exhibited three response peaks (380 nm, violet; 460 nm, blue; 520 nm, green). Parasitized borers were significantly more attracted to green light (520 nm) than to the control. The altered attraction to light in borers parasitized by <italic>M. hypothenemi</italic> is discussed from the perspective of possible host manipulation and the natural prevalence of this parasite.</p>
</abstract>

Metaparasitylenchus hypothenemi is a nematode that naturally parasitizes Hypothenemus hampei in a coffee-producing region in Chiapas, Mexico. This study investigated changes in the attraction of parasitized borers to light. We compared the attraction of adult H. hampei females (parasitized and uninfected) to 14 different light wavelengths (350–670 nm) with a control (570 nm, yellow) under laboratory conditions. The response ranges of non-parasitized and parasitized borers were 370–650 nm and 340–650 nm, respectively. The attraction curve showed a similar shape in both borer groups (parasitized and non-parasitized), but a wide wavelength range (380–590 nm) attracted more parasitized than non-parasitized borers. The maximum response of the uninfected borers occurred at 520 nm (green), while parasitized borers exhibited three response peaks (380 nm, violet; 460 nm, blue; 520 nm, green). Parasitized borers were significantly more attracted to green light (520 nm) than to the control. The altered attraction to light in borers parasitized by M. hypothenemi is discussed from the perspective of possible host manipulation and the natural prevalence of this parasite.

Response of <italic>Hypothenemus hampei</italic> Ferrari (Coleoptera: Curculionidae: Scolytinae) parasitized by the nematode <italic>Metaparasitylenchus hypothenemi</italic> Poinar (Tylenchida: Allantonematidae) to different colors of light

Journal of Nematology

This work is licensed under the Creative Commons Attribution 4.0 International License.

Response of  Ferrari (Coleoptera: Curculionidae: Scolytinae) parasitized by the nematode  Poinar (Tylenchida: Allantonematidae) to different colors of light

Metaparasitylenchus hypothenemi is a nematode that naturally parasitizes Hypothenemus hampei in a coffee-producing region in Chiapas, Mexico. This study...

Wavelength	Parasitized		Non-parasitized		χ²	P

	Treatment	Control	Treatment	Control
340	2	34	0	14	13.89		1
350	1	21	0	28	30.64	0.44
370	1	22	1	26	32.03	0.45
380	8	27	0	15	1.24	0.08
400	0	16	3	31	0.19	0.54
420	8	17	4	21	1.75	0.18
460	10	9	9	22	2.78	0.09
490	9	13	9	19	0.41	0.52
520	27	5	9	9	6.75	0.01
540	14	8	14	14	0.92	0.33
590	10	11	8	21	2.12	0.14
640	5	14	9	22	0.04	0.83
650	4	17	7	22	0.18	0.66
670	0	26	0	24		1

Response of Hypothenemus hampei Ferrari (Coleoptera: Curculionidae: Scolytinae) parasitized by the nematode Metaparasitylenchus hypothenemi Poinar (Tylenchida: Allantonematidae) to different colors of light

Article Category: Research Note

Data publikacji: 08 kwi 2024

Zakres stron: -

Otrzymano: 22 kwi 2023

DOI: https://doi.org/10.2478/jofnem-2024-0011

Słowa kluczowe
attraction, behavior change, host-parasite relationship, insect vision, interaction, parasitism

© 2024 M. Simota-Ruiz et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Figure 1:

Response of Hypothenemus hampei Ferrari (Coleoptera: Curculionidae: Scolytinae) parasitized by the nematode Metaparasitylenchus hypothenemi Poinar (Tylenchida: Allantonematidae) to different colors of light

Article Category: Research Note

Data publikacji: 08 kwi 2024

Zakres stron: -

Otrzymano: 22 kwi 2023

DOI: https://doi.org/10.2478/jofnem-2024-0011

Słowa kluczoweattraction, behavior change, host-parasite relationship, insect vision, interaction, parasitism

© 2024 M. Simota-Ruiz et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Figure 1:

Słowa kluczowe
attraction, behavior change, host-parasite relationship, insect vision, interaction, parasitism