Trogolaphysa laterolineata, 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 : 16

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.6096440
persistent identifier	https://treatment.plazi.org/id/038AC52E-FFCF-A474-FF3D-FD97FCB678A2
treatment provided by	Plazi
scientific name	Trogolaphysa laterolineata
status	sp. nov.

Treatment

Trogolaphysa laterolineata sp. nov.

Figs 3 View FIGURE 3 C, 8A–I, 9A–C, Table 2 View TABLE 2

Etymology. The epithet refers to the characteristic latero-posterior stripes Abd. 4.

Material examined. Holotype, slide-mounted, MEXICO: Chiapas, Ocosingo, Berlese sample, debris in tree flange along Rio Virgin Pasture and 2nd growth woods. 25.vi.1950, C. Goodnight, M. Goodnight and L. J. Stannard coll., acc. 49703, INHS 579,829; 3 paratypes in preparation and 11 (mostly small juveniles) in alcohol, same collection information as holotype.

Description. Size up to 2.1 mm.

Color p attern. Background color in 63 years old alcohol preserved specimens, reddish brown. Dark blue pigment ( Fig. 3 View FIGURE 3 C) present distally on Ant. 1 and most of Ant. 2–4, coxae, trochanter, femora and basal 2/3 of collophore; Abd. 4 with paired ellipsoidal streaks along lateral margins.

Head. Antenna up to 2.7x head length. Guard sensillum of subapical sense organ on Ant. 4 robust; pit and sensillum apparently absent. Sense organ of Ant. 3 normal rods. Eyes 6–8, eyes G and H reduced ( Fig. 8 View FIGURE 8 C), often completely obscured ( Fig. 8 View FIGURE 8 B); eye valley with 4–5 ciliate chaetae. Head dorsally ( Fig. 8 View FIGURE 8 A) with 4 anterior (A0, A2, A3, M2) and 2 posterior (Pa5, Pm3) macrochaetae. Pre-labral chaetae ciliate. Spine on distal margin of labrum Y-shaped ( Fig. 8 View FIGURE 8 D). Labial triangle with M1M2M3rEL1L2A1-5: anterior chaetae smooth; r short and smooth, all other posterior chaetae ciliate ( Fig. 8 View FIGURE 8 E). Post-labial field ( Fig. 8 View FIGURE 8 F) with 7 chaetae between columns I and O.

Body. Body macrochaetae 70/0244+0+6. Mesothorax ( Fig. 8 View FIGURE 8 G) with 1 anterior (a5) and 6 posterior (p3 complex) macrochaetae; Th. 3 without macrochaetae. Abd. 1 chaeta a6 absent. Abd. 4 ( Fig. 9 View FIGURE 9 A) pseudopore posterior, but nearly paired to bothriotrix T4; inner macrochaetae A3, A5, B4 and B5 present; A3 anterior to T2; A5 closer to pseudopore that to B5; B4 equidistant from A5 and B5; laterally with 6 macrochaetae. Abd. 4 posterior chaetae 12+12.

Legs: View of trochanteral organ obstructed in all individuals. Metathoracic claw complex as in Fig 9 View FIGURE 9 C: tenent hair spatulate, 1.3x as long as unguiculus; claw with 3–4 inner teeth; basal teeth subequal, unpaired tooth smaller than smallest basal tooth; inner teeth spread as 28%, 32%, 55%, 85%. Dorsal and lateral teeth ending on basal quarter of unguis. Unguiculus lanceolate, posterior edge smooth ( Fig. 9 View FIGURE 9 C).

Furcula. Dens with 2 rows of ciliate spines: inner row with 23 spines; outer row with 9 spines. Mucro in adults more or less square, with 4 short, stout, sequential teeth ( Fig. 8 View FIGURE 8 H); juvenile with rectangular mucro ( Fig. 8 View FIGURE 8 I).

Remarks. Trogolaphysa laterolineata sp. nov. is readily distinguished from all other Neotropical species by the characteristic lateral bands on Abd. 4. The new species is most similar to T. ocellata sp. nov. from which it can be distinguished by color pattern, the number of posterior head macrochaetae (2 in T. laterolineata sp. nov., 1 in T. ocellata sp. nov.) shape of distal labral papilla (Y-shaped in T. laterolineata sp. nov., separated in T. ocellata sp. nov.), number of labial chaetae M (3 in T. laterolineata sp. nov., 2 in T. ocellata sp. nov.) and relative position of Abd. 4 macrochaeta B5 (equadistant to A5 and B 6 in T. laterolineata sp. nov., much closer to B 6 in T. ocellata sp. nov.). All other species with four dorsal anterior head macrochaetae have a combination of macrochaetae different from the one present in T. laterolineata sp. nov. and T. ocellata sp. nov. ( Table 2 View TABLE 2 ).

One individual, which appears to be a second instar (the dorsal chaetotaxy of the trunk is already reduced), shows the same general claw and mucro morphology seen in first instar T. jataca and T. paracarpenteri sp. nov.:the claw has two inner teeth ( Fig. 9 View FIGURE 9 B), subequal in size, inserted at 32% of inner edge, whereas the mucro is 2.9x as long as the width of distal end of dens and evidently elongate ( Fig. 8 View FIGURE 8 I). In addition, Abd. 4 chaeta B4 is not developed into a macrochaeta in the juvenile ( Fig. 9 View FIGURE 9 A inset).