Pelodiaetodes moorei, Sokolov, Igor M., 2015

Sokolov, Igor M., 2015, Review of the species of Pelodiaetodes Moore (Coleoptera: Carabidae: Bembidiini: Anillina) of New Zealand, Zootaxa 3963 (4), pp. 561-582 : 575-576

Pelodiaetodes moorei , sp. n.

Figs. 3 GK, 5D–E, 6C–D, 7G–L, 8D, 9BE, 10B, 11

Type material. HOLOTYPE, male, in NZAC, point-mounted, labeled: \ New Zealand ND Poor Knights Is Tawhiti Rahi 5 Dec 1980 G. Kuschel \ sifted litter and decayed wood 80/137\N.Z. Arthropod Collection, NZAC Private Bag 92170 Auckland New Zealand \.

PARATYPES (28 examples, 6 exx. dissected), 1 male and 1 female labeled same as holotype; 6 females labeled: \ New Zealand ND Poor Knights Is Tawhiti Rahi 1 Dec 1980 G. Kuschel \ sifted litter and rotten wood 80/ 130 \ N.Z. Arthropod Collection, NZAC Private Bag 92170 Auckland New Zealand \; 1 male and 1 female labeled: \ New Zealand ND Poor Knights Is Tawhiti Rahi 2 Dec 1980 G. Kuschel \ sifted litter 80/129 \ N.Z. Arthropod Collection, NZAC Private Bag 92170 Auckland New Zealand \; 2 females labeled: \ New Zealand ND Poor Knights Is Tawhiti Rahi 4 Dec 1980 G. Kuschel \ sifted litter 80/133 \ N.Z. Arthropod Collection, NZAC Private Bag 92170 Auckland New Zealand \; 1 female labeled: \ New Zealand ND Poor Knights Is Tawhiti Rahi 4 Dec 1980 G. Kuschel \ sifted litter from Puffinus bulieri colony 80/133 \ N.Z. Arthropod Collection, NZAC Private Bag 92170 Auckland New Zealand \; 1 female labeled: \ New Zealand ND Poor Knights Is Tawhiti Rahi 6 Dec 1980 G. Kuschel \ sifted rotten wood 80/140 \ N.Z. Arthropod Collection, NZAC Private Bag 92170 Auckland New Zealand \; 2 males and 2 females labeled: \ New Zealand ND Poor Knights Is Tawhiti Rahi 8 Dec 1980 G. Kuschel \ sifted litter 80/143 \ N.Z. Arthropod Collection, NZAC Private Bag 92170 Auckland New Zealand \; 1 male labeled: \ New Zealand ND Poor Knights Is Tawhiti Rahi, 200m 10 Sep 1980 \ J.C. Watt Litter 80/68 \ N.Z. Arthropod Collection, NZAC Private Bag 92170 Auckland New Zealand \; 1 male labeled: \ New Zealand ND Poor Knights Is Tawhiti Rahi Smt Plateau, 200m 10 Sep 1980 \ 11 Sep 1980 J.C. Watt Litter 80/69 \ N.Z. Arthropod Collection, NZAC Private Bag 92170 Auckland New Zealand \; 2 males and 1 female labeled: \ New Zealand ND Poor Knights Is Tawhiti Rahi, E side of Summit Plateau, 170m \ 11 Sep 1980 J.C. Watt Litter 80/71 \ N.Z. Arthropod Collection, NZAC Private Bag 92170 Auckland New Zealand \; 1 male and 2 females labeled: \ ex forest litter Tawhitirahi Poor Knights Is 10 Aug 1970 B.M. May \ Entomology Division D.S.I.R. New Zealand \ Pelodiaetodes prominens det.B.P. Moore \ N.Z. Arthropod Collection, NZAC Private Bag 92170 Auckland New Zealand \; 1 male labeled: \ New Zealand ND Poor Knights Is Aorangi, ridge NE Oneho Hill 13 Nov 1981 \ J.C. Watt Litter and woodmould 81/129 \ N.Z. Arthropod Collection, NZAC Private Bag 92170 Auckland New Zealand \; 1 male labeled: \ New Zealand ND Poor Knights Is Aorangi 17 Nov 1981 \ J.S. Dugdale Soil 81/142 \ N.Z. Arthropod Collection, NZAC Private Bag 92170 Auckland New Zealand \.

Additional material. Northland (15 examples, 4 exx. dissected): Puketi State Forest; Russel State Forest; Waiorio Bush, Kawakawa; Mair Park, Whangarei; Parahaki Park, Whangarei.

Auckland (4 examples, 2 exx. dissected): Cascades; Oratia; Huapai; Little Barrier Pohutukawa Flat.

Specific epithet. The specific epithet is a Latinized eponym in the genitive case, and is based on the surname of B. P. Moore, the first reviser of the species of Anillina of New Zealand.

Type locality. New Zealand, North Island, Northland, Poor Knights Islands.

Recognition. Adults of this species ( Fig. 5 D–E) are practically indistinguishable externally from the adults of other congeners, except the smaller size and lighter color, and males of P. m o ore i are distinguished from the males of other congeners by the structure of the median lobe.

Description. Size. Small- to medium-sized for genus (SBL range 1.18–1.50 mm, mean 1.38± 0.089 mm, n=21).

Habitus. Body form subdepressed, subparallel, markedly elongate (WE/SBL 0.36±0.013), head large for genus compared to pronotum (WH/WPm 0.80±0.018), pronotum of moderate width in comparison to elytra (WPm/WE 0.79±0.024).

Color. Body color rufotestaceous, appendages testaceous.

Prothorax. Pronotum ( Fig. 6 C–D) moderately long (LP/LE 0.45±0.018) and moderately elongate (WPm/LP 1.19±0.053), with lateral margins shallowly sinuate and markedly constricted posteriorly (WPm/WPp 1.51±0.036). Anterior angles prominent, posterior angles almost rectangular (90–110°). Width between anterior angles much greater than between posterior angles (WPa/WPp 1.22±0.036).

Elytra. Moderately depressed along suture, comparatively short (LE/SBL 0.54±0.014) and narrow (WE/LE 0.67±0.022), without traces of striae. Humeri distinct, rounded, in outline forming obtuse angle with longitudinal axis of body. Lateral margins subparallel, slightly divergent at basal half, evenly rounded to apex in apical half.

Male genitalia. Median lobe ( Fig. 7 G–J) with long shaft, almost straight ventral margin and elongate apex with rounded tip. Sclerites of internal sac remote from each other, the dorsal sclerite bifurcated apically, markedly longer than ventral sclerite. Left paramere with short and conical apical constriction ( Fig. 7 H, K). Ring sclerite with moderately long, almost symmetrical handle, narrowly rounded at tip ( Fig. 8 D).

Female internal genitalia. Gonocoxite 2 with prominent basal ridge and ensiform setae of moderate length ( Fig. 9 B, E). Spermatheca weakly sclerotized, elongate, of barrel shape ( Fig. 10 B). Length of spermathecal gland much greater than length of spermatheca. Spermathecal duct slightly wavy and very long.

Geographical distribution. This species is broadly distributed within the subgenus range, inhabiting the mainland of the eastern part of the Northland and entire Auckland regions, with adjacent islands off the East coast ( Fig. 11 , blue quadrangles).

Way of life. This species has been collected in wide range of habitats, including forest litter, decaying and rotten wood, also from the litter in shearwater colony.

Relationships. Males of this new species resemble males of P. constricticollis , described above, based on the rounded tip of the median lobe, but differ in other details of aedeagal structure.

Figures

FIGURE 3. SEM illustrations of structural features of legs of Pelodiaetodes species, various aspects. A – B protarsus: A left protarsus of P. nunni, ventral aspect; B right protarsus of P. aldermensis, ventral aspect. C – D protibia: C left protibia of P. nunni, ventral aspect; D left protibia of P. aldermensis, medial aspect. E – H mesotibia: E right mesotibia of P. prominens, dorsal aspect; F right mesotibia of P. aldermensis, dorsal aspect; G right mesotibia of P. moorei, dorsal aspect; H left mesotibia of P. nunni, dorsal aspect. I – L metatibia: I right metatibia of P. prominens, dorsal aspect; J left metatibia of P. aldermensis, dorsal aspect; K left metatibia of P. moorei, dorsal aspect; L left metatibia of P. nunni, dorsal aspect. Legend: ac – antenna cleaner; as – adhesive seta; asp – anterior spur; asr – anterior setal row; cls – clip seta; msb – mesotibial brush; msms – mesotibial modified seta; mss – mesotibial spur; mtb – metatibial brush; mtms – metatibial modified seta; mts – metatibial spur; psp – posterior spur; psr – posterior setal row; sb – setal band; ta 1 – ta 4 – tarsomeres 1 – 4. Scale bars = 0.02 mm.

FIGURE 5. Digital images of habitus of Pelodiaetodes species, dorsal aspect. A P. prominens (NZ, Northland, Waipoua Forest); B P. constricticollis (NZ, Northland, Radar Bush), paratype; C P. aldermensis (NZ, Waikato, Aldermen Islands), paratype; D P. moorei (NZ, Northland, Poor Knight Islands), paratype; E P. moorei (NZ, Northland, Puketi Forest); F P. nunni (NZ, Otago, Oamaru), paratype. Scale bar = 1 mm.

FIGURE 6. Digital images of pronota of Pelodiaetodes species. A P. prominens (NZ, Northland, Waipoua Forest); B P. constricticollis (NZ, Northland, Radar Bush), paratype; C P. moorei (NZ, Northland, Poor Knight Islands), paratype; D P. moorei (NZ, Northland, Puketi Forest); E P. aldermensis (NZ, Waikato, Aldermen Islands), paratype; F P. nunni (NZ, Otago, Oamaru), paratype. Scale bars = 0.5 mm.

FIGURE 7. Line drawings of male aedeagus of Pelodiaetodes species. P. prominens (NZ, Northland, Omahuta Forest): A median lobe, right lateral aspect; B left paramere, left lateral aspect; C right paramere, right lateral aspect. P. constricticollis (NZ, Northland, Radar Bush): D median lobe, right lateral aspect; E left paramere, left lateral aspect; F right paramere, right lateral aspect. P. moorei (NZ, Northland, Poor Knight Islands): G median lobe, right lateral aspect; H left paramere, left lateral aspect; I right paramere, right lateral aspect. P. moorei (NZ, Northland, Puketi Forest): J median lobe, right lateral aspect; K left paramere, left lateral aspect; L right paramere, right lateral aspect. P. aldermensis (NZ, Waikato, Aldermen Islands): M median lobe, right lateral aspect; N left paramere, left lateral aspect; O right paramere, right lateral aspect. P. nunni (NZ, Otago, Oamaru): P median lobe, right lateral aspect; R left paramere, left lateral aspect; S right paramere, right lateral aspect. Legend: dp – dorsal plate; vp – ventral plate. Scale bar = 0.1 mm.

FIGURE 8. Line drawings of ring sclerite of Pelodiaetodes species, male genitalia, dorsal aspect. A P. prominens (NZ, Northland, Omahuta Forest). B P. constricticolllis (NZ, Northland, Radar Bush). C P. aldermensis (NZ, Waikato, Aldermen Islands). D P. moorei (NZ, Northland, Poor Knight Islands). E P. nunni (NZ, Otago, Oamaru). Legend: hd – handle of ring sclerite. Scale bar = 0.1 mm.

FIGURE 9. SEM illustrations of ovipositor sclerites of Pelodiaetodes species. A – B right ovipositor sclerite, lateral aspect; C – D right gonocoxite 2, ventral aspect. A, D P. prominens; B, E P. moorei; C, F P. nunni. Legend: mbr – medial basal ridge of gonocoxite 2, bla – blade of gonocoxite 2, les – lateral ensiform seta; gc 1 – gonocoxite 1; gc 2 – gonocoxite 2; lt – laterotergite; mes – medial ensiform seta; ns – nematiform seta. Scale bars: A – C = 0.05 mm; D – F = 0.02 mm.

FIGURE 10. Line drawings of spermatheca, spermathecal duct, and spermathecal gland of Pelodiaetodes species. A P. prominens (NZ, Northland, Waipoua Forest). B P. moorei (NZ, Northland, Poor Knight Islands). C P. aldermensis (NZ, Waikato, Aldermen Islands). D P. nunni (NZ, Otago, Oamaru). Legend: sd – spermathecal duct; sg – spermathecal gland; sp – spermatheca. Scale bar = 0.05 mm.

FIGURE 11. Map of New Zealand, showing positions of locality records for Pelodiaetodes species: P. prominens – red circles; P. constricticollis – yellow diamond; P. moorei – blue quadrangles; P. aldermensis – pink triangle; P. nunni – white circle.