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The interactions between the lacewing Ceraeochrysa claveri (Navás) (Neuroptera: Chrysopidae) larva and the coconut mealybug Nipaecoccus nipae (Maskell) (Hemiptera: Pseudococcidae) were recorded. The third-instar lacewing larva constructed a dorsal packet using mealybug wax from both male pupal cases and the bodies of adult females. Surprisingly, live nymphs were also frequently placed into the dorsal packet. Prey mealybugs were discarded and not incorporated into the packet after consumption. When disturbed, adult female mealybugs reflex bled from their dorsal ostioles, contacting the mouthparts of the lacewing. The lacewing quickly retreated to clean the mouthparts on the substrate, providing further evidence that ostiolar fluids act as a defense mechanism for mealybugs. Despite repeatedly contacting the ostiolar fluid, the lacewing pupated and eclosed successfully. Macro video footage of dorsal packet construction and ostiolar reflex bleeding is included. This is the first report of C. claveri preying on N. nipae, the first evidence of C. claveri using mealybug wax to construct the dorsal packet, and the first account of reflex bleeding via the dorsal ostioles to deter predators in N. nipae.
ZooBank registration. urn:lsid:zoobank.org:pub:CCEE7B47-B6E9-4D36-8860-A7F4DE5E717B
We treat 50 species of Pseudococcus Westwood (Hemiptera: Pseudococcidae) found in Central and South America. Sixteen new species are described and illustrated: Pseudococcus acaena Granara de Willink n. sp., P. bahiensis Granara de Willink n. sp., P. calchaquii Granara de Willink n. sp., P. chaquensis Granara de Willink n. sp., P. colombiensis Granara de Willink n. sp., P. cubaensis Granara de Willink n. sp., P. cuyoensis Granara de Willink n. sp., P. debilis Granara de Willink n. sp., P. dumetum Granara de Willink n. sp., P. insuetus Granara de Willink n. sp., P. lanatii Granara de Willink, n. sp., P. neuquenensis Granara de Willink n. sp., P. occultus Granara de Willink n. sp., P. panamaensis Granara de Willink n. sp., P. salazari Granara de Willink n. sp. and P. scatoterrae Granara de Willink n. sp. The new species are distributed in Argentina (9 spp.), Colombia (3 spp.), Brazil (2), Uruguay (2), Cuba (1), Panama (1) and Peru (1). Diagnostic characters and illustrations of 34 additional species are provided: Pseudococcus agavis McGregor, P. apomicrocirculus Gimpel and Miller, P. calceolariae (Maskell), P. comstocki (Kuwana), P. cribata González, P. cryptus Hempel, P. donrileyi Gimpel and Miller, P. elisae Borchsenius, P. eriocereus Williams, P. espeletiae Williams and Granara de Willink, P. galapagoensis Morrison, P. importatus McKenzie, P. insularis Morrison, P. jackbeardsleyi Gimpel and Miller, P. landoi (Balachowsky), P. longispinus (Targioni Tozzetti), P. mandio Williams, P. maritimus (Ehrhorn), P. meridionalis Prado, P. microcirculus McKenzie, P. nakaharai Gimpel and Miller, P. neomicrocirculus Gimpel and Miller, P. odermatti Miller and Williams, P. pabulum Granara de Willink, P. peregrinabundus Borchsenius, P. puertoricensis Gimpel and Miller, P. rosangelae Pacheco da Silva and Kaydan, P. saccharicola Takahashi, P. schusteri Gimpel and Miller, P. spanocera Gimpel and Miller, P. sociabilis Hambleton, P. solenedyos Gimpel and Miller, P. sorghiellus (Forbes) and P. viburni (Signoret). Five species from Argentina, two species from Jamaica and one species from Suriname are cited for the first time. Sixty-three figures, corresponding to the known species, their variations and new species cited for the region are included. A list of host plants containing 77 plant families and 355 species is included. An updated list of host plants and the distribution of some species of the genus is provided.