Lophoturus monserratensis, Duy-Jacquemin, 2002

Duy-Jacquemin, Monique Nguyen, 2002, New species and distribution of the genera Lophoturus and Ancistroxenus (Myriapoda, Diplopoda, Penicillata) in the Caribbean and northern South America, Zoosystema 24 (2), pp. 451-470 : 455

publication ID	https://doi.org/ 10.5281/zenodo.5393017
persistent identifier	https://treatment.plazi.org/id/731987BC-FFD9-FFE8-FF47-25555E99D758
treatment provided by	Marcus
scientific name	Lophoturus monserratensis
status	sp. nov.

Treatment

Lophoturus monserratensis View in CoL n. sp. ( Fig. 2 View FIG )

TYPE MATERIAL. — Colombia. Near Bogotá, Párámo de Monserrate, c. 2250 m, Espeletia grandiflora dead leaves, 21. VII.1978, H. Sturm leg., ad. holotype (78/209 Kol. ZMUC).

ETYMOLOGY. — The name refers to the locality where the type specimen was collected.

DESCRIPTION

Measurements

Body length (without caudal pencil) 2.40 mm. Tarsus II length of 13 th leg 193 µm.

Head

Anophthalmic.

Vertex with one pair of posterior tufts consisting of two rows: anterior row of 15 and 16 trichomes, posterior row with six trichomes ( Fig. 2J View FIG ); the distance between each tuft is greater than their length.

The proportions of the antennal articles are represented in Fig. 2A View FIG . Antennal article VI with three dorsal basiconica sensilla ( Fig. 2C View FIG ): two are side by side, the anterior one i is slightly thicker and longer than the posterior p; the third sensillum a is more basal, anterior, thinner and half as long as the other two sensilla, its apex reaching their bases. One sensillum coeloconicum c is near the posterior sensillum; setiform sensillum absent. Antennal article VII with two dorsal basiconica sensilla: one anterior thin a, one posterior thick p and one apical sensillum coeloconicum c ( Fig. 2B View FIG ). Left antenna has three sensilla coeloconica c on the article VII ( Fig. 2D View FIG ) and none on article VI because it is regenerated ( Fig. 2E View FIG ).

Anterior trichobothria with the dilated apex ending in a short spine-hair ( Fig. 2J View FIG ).

Whole area of labrum well ornamented with numerous flat papillae, more or less arranged in groups and covered by small granules ( Fig. 2N View FIG ). Two rows of cuticular setae on posterior edge of labrum, second row interrupted by spaces. Clypeo-labrum with 11 long setae along the posterior margin.

Palpi of gnathochilarium with 39 (left) and 45 (right) sensilla ( Fig. 2M View FIG ).

Trunk

The trichomes of each tergite are grouped into two, separate, oval clusters with an additional posterior row, subdivided in its middle ( Fig. 2K View FIG ), except on collum; distance between both clusters much greater than length of each. Collum with left tuft of 55 and right tuft of 56 trichomes; each lateral protuberance of collum with six trichomes; each oval cluster of tergites II to IV with 31 to 37 trichomes and posterior row with 33 to 37.

Legs

Each leg article, except for femora, tibia and tarsi, bearing pubescent cylindrical setae ( Fig. 2 View FIG G-I); coxae II to XII bearing two to five setae; I and XIII with one seta; trochanters and prefemoras I to XIII with one seta. Spine of tarsus II at least 1.5 times longer than telotarsus ( Fig. 2F View FIG ). Telotarsus with two dorsal, subequal, anterior and posterior denticles. Claw with ventral denticle.

All areas of penis with cuticular setae.

Telson

Nine trichomes a, six of which placed on internal side (i) and three on external side (e) of the group of trichomes b-c1-c3 ( Fig. 2L View FIG ). Most trichomes of caudal penicil lost; those remaining with one to three hooks.

REMARKS

The position of the antennal sensilla of article VI is the same as in L. anisorhabdus Condé & Terver, 1964 . The labral ornamentations are spe- cific and differ from those known in other species of Lophoturus , such as L. niveus ( Loomis, 1934) , L. aequatus (Loomis, 1936) , L. quebradanus (Chamberlin, 1955) and L. obscurus (Broleman, 1931) .