Parachemmis julioblancoi Martinez-G & Villarreal

Martinez, Leonel, Villarreal, Eduardo & Martinez, Neis, 2017, A new species of the genus Parachemmis Chickering, 1937 from Colombia (Araneae, Corinnidae, Corinninae), ZooKeys 679, pp. 29-35 : 32-34

Parachemmis julioblancoi Martinez-G & Villarreal sp. n. Figs 1, 2, 3

Holotype.

Male in ICN-Ar, from Colombia, Magdalena, Sierra Nevada de Santa Marta, San Pedro de la Sierra, 2104 m, 10.895138°N, 73.999611°W, 28 Mar.2017, L. Martínez (ICN-Ar 8420). Paratypes. 1♀, same data (ICN-Ar 8421); 2♂ (ICN-Ar 8422- 8423) and 4♀ (ICN-Ar 8424) from same locality; 1 ♂ and 1♀ (ICN-Ar 8327- 8328) same locality. 6 May 2016.

Etymology.

The specific epithet is a patronym in honor of Dr. Julio Enrique Blanco (Founder of the Universidad del Atlántico), for his many contributions to art and education in Colombia.

Diagnosis.

Males of P. julioblancoi sp. n. can be distinguished from all remaining species of the genus by the large, club-like PLP, which extends towards the middle and distal part of the tegulum, wide conductor that ends next to embolus, a short, apically truncated RTA and a wide VTA (Fig. 2 A–C), Females of P. julioblancoi sp. n. resembles those of P. fuscus by having the copulatory openings placed medially and by the non-coiled copulatory ducts, but can be diagnosed by the short, wide and rounded copulatory ducts and very short ST II (Fig. 2 D–E).

Description.

Male (holotype, ICN–Ar 8327). Total length: 7.77. Carapace brown, 3.20 long, 2.65 wide, 1.15 high. Eyes AER 1.18 wide, PER 1.32 wide. AME 0.25, PME 0.17, ALE 0.20, PLE 0.21. (Fig. 1A). Sternum brown 1.69 long, 1.65 wide (Fig. 1C). Legs 4123, I-femora 3.10/ patella 0.94/ tibiae 3.40/ Metatarsus 3.01/ tarsus 1.65/total = 12.10; II 3.29/0.99/2.75/2.85/1.63/11.51; III 2.33/0.70/2.32/2.05/1.21/8.61; IV 3.2/1.25/2.67/3.65/1.47/12.24. Chelicerae dark brown, with three promarginal and four retromarginal teeth. Labium brown. Legs yellow (Fig. 1A). Leg macrosetae: femora, I d 1-1-0, p 1 di; II d=I, p 1-1-1; III d 1-1-1, p 1-0-1, r 1-0-1; IV d=III, p 1 di, r 1 di. Tibiae, I v 1 –2– 2; II v 0 –2– 2; III v 2-2-2, p 1-0-1, r 1-0-1; IV v=III, p 1-1-0, r1-1-0. Metatarsus, I v 2-0-2; II v 2 –0– 1; III v 2 –2– 2, p 1 pr, r 1-1-0; IV v=III, p 1-1-0, r=III. Abdomen Dark gray, with an anterior yellow patch (Fig. 1A); ventrally gray. Spinnerets gray.

Female. (paratype, ICN–Ar 8328). Total length: 11.00. Carapace brown with yellowish posterior borders, 4.72 long, 3.84 wide, 1.97 high. Eyes AER 1.35 wide, PER 1.56 wide. AME 0.29, PME 0.24, ALE 0.27, PLE 0.19 (Fig. 1B). Sternum brown 2.42 long, 2.04 wide (Fig. 1D). Legs 4123. I-femora 4.26/ patella 1.46/ tibiae 4.41/ Metatarsus 3.77/ tarsus 1.01/total= 14.91; II 4.32/1.15/4.16/3.41/0.97/14.01; III 4.02/1.16/3.52/3.65/1.36/13.71; IV 5.17/1.49/4.45/5.32/1.61/18.04. Chelicerae dark brown with two promarginal and four retromarginal teeth. Labium brown. Legs yellow (Fig. 1B). Leg macrosetae: femora, I d 1-1-0, p 0-1-1; II d 1-1-1, p 0-2-1; III d 1 di, p 2-1-1, 1, r 0-1-1; IV d 1-1-1, p 1 di, r 1 di. Tibiae, I-II v 2-2-2; III v 2-2-2-2, p 0 -1-1, 0-1-1; IV v 2-2-2, p 1 di, 1-0-1. Metatarsus, I v 2-0-2; II v 2 –1– 2; III v 2-1-2-2, p 1-1-1, r 1-1-1; IV v 1-1-2-2, p 1-1-0, r 1-0-1. Abdomen dorsal gray, with several anterior yellow patches. (Fig. 1B); ventrally gray. Spinnerets gray.

Natural history.

The type material was collected manually, on leaf litter, in a conserved high mountain wet forest ecosystem.

Distribution.

Only known from the type locality (Fig. 3).

Authors’ contributions.

LM and EV collected, and identified the material. LM was responsible for species description. LM, NM and EV reviewed the literature, drafted the manuscript, and contributed to the critical discussion. EV and LM prepared the images. All authors read and approved the final manuscript.