Trogolaphysa stannardi, Soto-Adames, Felipe N., 2015

Soto-Adames, Felipe N., 2015, The dorsal chaetotaxy of first instar Trogolaphysa jataca, with description of twelve new species of Neotropical Trogolaphysa (Hexapoda: Collembola: Paronellidae), Zootaxa 4032 (1), pp. 1-41 : 8-13

publication ID

https://doi.org/ 10.11646/zootaxa.4032.1.1

publication LSID

lsid:zoobank.org:pub:CB9720EB-7BB7-4199-A835-A3266B0DDA6B

DOI

https://doi.org/10.5281/zenodo.6096436

persistent identifier

https://treatment.plazi.org/id/038AC52E-FFC7-A476-FF3D-FAEEFDCA7E4B

treatment provided by

Plazi

scientific name

Trogolaphysa stannardi
status

sp. nov.

Trogolaphysa stannardi sp. nov.

Figs 3 View FIGURE 3 A, 5A–G, 6A–B, Table 1 View TABLE 1

Etymology. The epithet honors Lewis J. Stannard, entomologist at the Illinois Natural History Survey whose collecting trips to Mexico in the 1950's provided a large portion of the species described in the present contribution. Material examined. Holotype male, slide-mounted, MEXICO, Yucatan, Chichen Itza, Berlese sample, leaf mould from moist woods and dry cenote, 25.vi.1951. L.J. Stannard coll., acc. no. 49763, INHS 579,835; 2 paratypes in preparation and 10 in alcohol (all juveniles in poor condition) with same collection information as holotype.

Description. Size up to 2.6 mm.

Color pattern. Background color in alcohol preserved individuals light brown ( Fig. 3 View FIGURE 3 A), with light blue pigment on hind coxae and lateral margin of Abd. 1; distal margin of Ant. 1, whole of Ant. 2-4 and tibiotarsi evenly light blue

Head. Antennae up to 2.6x head length. Subapical sense organ not see. Sensilla in sense organ Ant. 3 normal rods. Eyes 6 ( Fig. 5 View FIGURE 5 B), eyes G and H absent; eye valley with 4–5 ciliate chaetae. Head dorsally with 6 anterior (A0, A2, A3, M2, S3, S5; Fig. 5 View FIGURE 5 A) and 1 posterior (Pa5; Fig. 5 View FIGURE 5 B) macrochaetae. Pre-labral chaetae ciliate. Denticles on distal margin of labrum fused basally, Y-shaped ( Figs. 5 View FIGURE 5 E–F). Labial triangle with M1M2M3M4rEL1L2A1–5 ( Fig. 5 View FIGURE 5 G); r stout, rather large and smooth, all other posterior chaetae ciliate. Post-labial field with 6–7 ciliate chaetae between columns I and O.

Body. Body macrochaetae (4-5)2/0244+0+6. Mesothorax ( Figs. 5 View FIGURE 5 C), with 1 anterior (a5) and 4-5 posterior (p3 complex) macrochaetae; inner most anterior chaetae in p3 complex a microchaetae in smallest female ( Fig. 5 View FIGURE 5 C middle inset). Metathorax ( Fig. 5 View FIGURE 5 C) with 2 (p2, p3) macrochaetae. Abd. 1 chaeta a6 absent. Abd. 4 ( Fig. 6 View FIGURE 6 A) with pseudopore inserted in field just posterior to T4; inner macrochaetae A3, A5, B4 and B5 ( Fig. 6 View FIGURE 6 A) present; A3 well anterior to T2; A5 inserted posterior to pseudopore; B4 inserted closer to B5 than to A5; in smaller individuals (1.9 and 2.2 mm) B4 much closer to B5 ( Fig. 6 View FIGURE 6 A inset) than in larger individuals; 6 large lateral macrochaetae present. Abd. 4 posterior chaetae 10–11+10–11.

Legs. Trochanteral organ with up to 27 chaetae. Metathoracic claw complex as in Fig 6 View FIGURE 6 B: tenent hair spatulate on all legs, 1.2x as long as unguiculus; claws with 4 inner teeth, basal teeth subequal, small; proximal unpaired tooth shorter than basal teeth; distal unpaired tooth inconspicuous; inner teeth spread as 47%, 47%, 75%, 87%. Dorsal and lateral teeth ending on basal quarter of unguis, lateral teeth well developed. Unguiculus lanceolate, narrow in females ( Fig. 6 View FIGURE 6 B), normal in male; posterior edge smooth in females, serrate in male.

Furcula. Dens with 2 rows of ciliate spines: largest individual with 33 spines in inner row and 25 in outer row. Mucro with 4 teeth, basal teeth paired ( Fig. 5 View FIGURE 5 D); mucro square, 1.6–1.9x as long as width of distal end of dens and 0.79x as long as inner margin of metathoracic unguis.

Remarks. Trogolaphysa stannardi sp. nov. is the only Neotropical member of the genus with 6–8 eyes, 6 anterior dorsal head macrochaetae, 4–5 mesothoracic, and 2 metathoracic macrochaetae. Trogolaphysa quisqueyana Soto-Adames, Jordana & Baquero, 2014 is the only other eyed species with 6 anterior head macrochaetae, but it carries 6 macrochaetae in the p3 complex of the mesothorax and lacks metathoracic macrochaetae. The color pattern of T. stannardi sp. nov. is similar to that of T. clarencei sp. nov. and T. dimorphica sp. nov., but the three species differ in the number and identity of dorsal head macrochaetae, number of labial triangle chaetae in series M, presence or absence and shape of distal labral denticles, and number of meso- and metathoracic macrochaetae. Additional diagnostic characters for species with 6–8 eyes and 5–6 anterior head macrochaetae are provided in Table 1 View TABLE 1 .

TABLE 1. Diagnostic table of Neotropical species of Trogolaphysa with 6 – 8 eyes and 5 - 6 dorsal anterior head macrochaetae. Mc = macrochaeta.

Character Species T. quisqueyana Soto-Adames, Jordana & Baquero, 2014 Head Dorsal Anterior Mc 6 A0,A2,A3,M2,S3,S5 Labral Spines separated Number Labial Setae M 2 Th. 2 p3 complex Mc 6 Th. 3 Mc 0 Abd. 4 Inner Mc 4 A3,A5,B4,B5 Position Unpaired Tooth distal half Unguiculus Shape lanceolate Mucro Teeth 4 basal paired
T. stannardi sp. nov. 6 A0,A2,A3,M2,S3,S5 base fused wide 4 4–5 2 4 A3,A5,B4,B5 distal half lanceolate 4 basal paired
T. riopedrensis (Mari Mutt, 1987) 5 A0,A2,A3,S3,S5 separated 2 5–6 0 4 A3,A5,B4,B5 distal half lanceolate 4+ basal tooth with 1–2 denticles, sequential
T. dimorphica sp. nov. 5 A0,A2,A3,M2,S3 separated unusually short 2 5–6 3 female: 4 A3,A5,B4,B5 male: 3 A3,A5,B5 female: distal half males: middle quarter lanceolate 4 sequential
T. clarencei sp. nov. 5 A0,A2,A3,M2,S3 absent 2 6 3 4 A3,A5,B4,B5 distal half lanceolate 4 sequential
T. jataca (Wray, 1953b) 5 A0,A2,M2,S3,S5 separated 2 6 0 3 A3,A5,B5 distal half or middle quarter lanceolate 4 sequential
T. formosensis da Silva & Bellini, 2015 5 A0,A2,M2,S3,S5 absent? 2 6 3 4 A3,A5,B4,B5 distal half truncate 5 Campylothorax -like
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