Diestecostoma octannulata Moore, 1946

Tessler, Michael, Siddall, Mark E. & Oceguera-Figueroa, Alejandro, 2018, Leeches from Chiapas, Mexico, with a new species of Erpobdella (Hirudinida: Erpobdellidae), American Museum Novitates 2018 (3895), pp. 1-1 : 1-

Diestecostoma octannulata Moore, 1946

Figures 10–11

The presence of five eyespot pairs arranged in a parabolic arc (first four pairs on contiguous annuli and two annuli separating fourth and fifth pair), complete somite eight annulate (16 + 1/2 annuli between gonopores) is consistent with the description of Diestecostoma octannulata Moore, 1946 . Found in a rotten tree under the bark. Terrestrial leech; presumably non-blood-feeding (macrophagous). New country record; new state record; new locality record: Mexico, Volcán Tacaná, la Caracola (15°06′19.39″N, 92°05′47.27″W; 2452 m), one specimen collected July, 25, 2015, by Alejandro Oceguera-Figueroa ( CNI 15 ). GenBank cox1 barcode sequence accession: MG 821605 .

Figures

FIGURES 8–11. Arhynchobdellida from Chiapas, Mexico. Erpobdella triannulata: 8. dorsal view, 9. ventral view. Diestecostoma octannulata: 10. dorsal view, 11. ventral view.