The subfamily Neophyllaphidinae (Hemiptera: Aphididae) was erected based on the type genus NeophyllaphisTakahashi, 1920. Since then, Hille Ris Lambers (1967), Russell (1982) and Quednau (2010) reviewed world species with illustrations and keys. Neophyllaphidinae is comprised with the two paleogenera, †Aniferella Richards, 1966 and †Conicaudus Heie, 1972, and the only present genus Neophyllaphis with 18 species under 2 subgenera, Chileaphis Essig, 1953 and Neophyllaphis, in the world (Favret, 2017). Chileaphis species are distributed only in South America and Neophyllaphis species are distributed in South-east Asia through Southern hemisphere (Blackman and Eastop, 2017; Quednau, 2010). Some species such as N. araucariae and N. podocarpi have been invaded into other countries and cause severe damage to street trees. (Aguiar et al., 2013; Carver, 1959; Carver, 1971; Blackman and Eastop, 2017; Limonta, 1990; Pérez Hidalgo et al., 2015; Quednau, 2010; Russell, 1982). All species are monoecious on Podocarpaceae and Araucariaceae (Blackman and Eastop, 2017). Unusually, sexual morphs and parthenogenetic morphs occur together in spring, summer and autumn (Russell, 1982). Fundatrices of Chileaphis can produce sexual morphs (Quednau, 2010).

In this study, the subfamily Neophyllaphidinae is reported for the first time in Korea based on the type species N. podocarpi. This species was collected on Podocarpus macrophyllus in Jeju island. A diagnostic note, biometric data and illustrations are given for apterous and alate viviparae, alate ovipara and alate male.

Materials and Methods

Aphid samples were collected in Korea in 2014. Samples were preserved in 90% ethanol for a month, and then mounted in Canada balsam, following the method of Blackman and Eastop (2000) and Martin (1983) methods. Illustrations for the species were taken by a digital camera attached to the microscope (Leica 400B, Leica Microsystems, Germany) at a resolution of 600 dpi. Measurements for each specimen are taken from the digital images by using image analysis software (Active measure ver. 3.0.3 from Mitani Co. Ltd, Japan). All specimens were preserved in the College of Agriculture and Life sciences, Seoul National University Korea (CALS).

Abbreviations used for diagnosis and biometric data are: ANT I-VI, antennal segments I-VI; BASE, base of the last antennal segment; PT, processus terminalis of the last antennal segment; BD III, basal diameter of antennal segment III; Ls ANT III, longest setae on ANT III; HT II, second segment of hind tarsus; SIPH, siphunculus; URS, ultimate rostral segment.

Taxonomy

Subfamily Neophyllaphidinae Takahashi, 1921 나한송진딧 물아과(신칭)

Neophyllaphidinae Takahashi, 1921: 76. (Neophyllaphidini)

Neophyllaphidinae Takahashi, 1921: Nieto Nafría et al., 1997: 84; Heie and Wegierek, 2009: 70; Quednau, 2010: 19, 19; Nieto Nafría et al., 2011: 63.

Type genus: NeophyllaphisTakahashi, 1920.

Diagnosis. This subfamily is closely related to Mindarinae Tullgren, 1909 by having long and slender rostrum, PT shorter than BASE and less developed 3 lensed compound eyes in apterous morph (Chileaphis has mulifaced eye) but can be distinguished by having well developed epicranial suture, cauda knobbed, ANT III with slit-like secondary sensoria in alate morph, pterostigma of fore wing not elongated of alate morph. Some species have pseudosensoria on hind tibiae in alate viviparae.

Host plant. Podocarpaceae and Araucariaceae.

Distribution. Africa (Angola, Cameroon, Ethiopia, Kenya, South Africa, Tanzania), Asia (China, India, Indonesia, Japan, Korea, Malaya, Taiwan, and Vietnam), Europe (Azores, Italy, and Spain)Oceania (Australia, New Guinea, and New Zealand), North America (Bahamas and USA), South America (Argentica, Brazil, Chile, Costa Rica, Mexico, Peru, and Venezuela).

Remarks. This subfamily is regarded as a group of primitive drepanosiphine aphids (Quednau, 2010). Most species are distributed in tropical and temperate region of southern hemishpere. Neophyllaphidinae species show distinct biological and morphological features. In most species, alate oviparae occur throughout spring to autumn. Alate viviparae of some species have paeudosensoria on hind tibiae which exists only in oviparae in other subfamilies.

Genus NeophyllaphisTakahashi, 1920 나한송진딧물속(신칭)

NeophyllaphisTakahashi, 1920: 19.

NeophyllaphisTakahashi, 1920: Hille Ris Lambers, 1967: 55; Eastop and Hille Ris Lambers, 1976: 314; Smith and Parron, 1978: 218; Qiao et al., 2001: 92; Quednau, 2010: 26; Nieto Nafría et al., 2011: 282.

Type species: Neophyllaphis podocarpiTakahashi, 1920.

Diagnosis. This genus is recognized from two paleogenera, †Aniferella Richards, 1966 and †Conicaudus Heie, 1972 by having slit like secondary sensoria on ANT III and three branched median vein of fore wing.

Remarks. This genus is comprised with 2 subgenera, Chileaphis and Neophyllaphis. Russell (1982) regarded Chileaphis as a synonym of Neophyllaphis because, N. grobleri Eastop, 1955 exhibits intermediate form of Chileaphis and Neophyllaphis. Morphologically, Chleaphis is distinguished from Neophyllaphis by having fully developed compound eyes, knob of cauda globular shaped with many hairs, some species have marginal tubercles on abdominal tergite I in alate morph and oviparae with pseudosensoria on all tibiae (Hille Ris Lambers, 1967; Russell, 1982; Quednau, 2010). Species in the subgenus Neophyllaphis have no elevations and tubercles on abdominal tergite and oviparae have pseudosensoria only on hind tibiae (Hille Ris Lambers, 1967; Quednau, 2010).

Neophyllaphis (Neophyllaphis) podocarpiTakahashi, 1920 나한송진딧물(신칭) (Table 1; Figs. 1-3)2

Neophyllaphis podocarpiTakahashi, 1920: 20.

Neophyllaphis podocarpiTakahashi, 1920: Takahashi, 1921: 77; Takahashi, 1923: 129; Takahashi, 1924: 69, 112; Takahashi, 1950: 587; Eastop, 1966: 516; Higuchi, 1972: 100; Eastop and Hille Ris Lambers, 1976: 315; Smith and Parron, 1978: 218; Russell, 1982: 558; Limonta, 1990: 98; Remaudière and Remaudière, 1997: 230; Noordam, 2004: 126; Miller and Halbert, 2014: 77.

Neophyllaphis (Neophyllaphis) podocarpiTakahashi, 1920: Hille Ris Lambers, 1967: 57; Qiao et al., 2001: 94; Quednau, 2010: 30.

Mindarus podocarpiShinji, 1922: 532.

Diagnosis. This species can be recognized from other congeneric species by having entirely pigmented cauda knob, ANT III 0.85-0.88 × ANT IV-VI, 26-45 secondary sensoria on ANT III in alate viviparae, genital plate with 30-43 peg-shaped hairs in alate oviarae.

Materials examined. 9 apterous viviparous females, Andeokmyeon, Seoguipo-si, Jeju-island, South Korea, 13.ix.2014., on Podocarpus macrophyllus (Podocarpaceae), Coll# 140913JY-1, J. Choi; 2 alate viviparous females, same data as apterous viviparous females; 2 alate oviparous females same data as apterous viviparous females; 1 alate male same data as apterous viviparous females.

Host plant.Podocarpus spp. and Neageia nagi (China) (Podocarpaceae).

Distribution. Originally described in Asia (China, Indonesia, Japan, Malaysia, Taiwan, and Vietnam), distributed in New Zealand, Australia, and has been introduced into Europe (Azores, Italy, and Spain) and North America.

Remarks. This species is new to Korea. Currently, this species is only collected in Jeju island.