Desmopachria delongi Miller and Wolfe 2018, new species
Creators: name: Miller, Kelly B.
name: Wolfe, G. William
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Dytiscidae
Desmopachria
Desmopachria delongi

description: Desmopachria delongi Miller and Wolfe, new species   
Zoobank.org/ urn:lsid:zoobank.org:act: C6FC03C3-4C59-4760-B207-A9A3E472BC4C (Figs. 5–8, 69)  
 Type Locality. Suriname, Sipaliwini, Raleighvallen Nature Reserve, Voltzberg trail, detrital pools along stream, 4°40.910ʹ N, 56°11.138ʹ W.   
 Diagnosis. This species has male genitalia moderately modified with the median lobe in lateral aspect short and evenly curved (Fig. 5). In ventral aspect, the median lobe is moderately broad medially, apically abruptly narrowed, and apically narrowly bispinous (Fig. 6). The lateral lobe is bifid with each ramus relatively elongate, the dorsal one apically rounded, the ventral one apically curved and pointed (Figs. 7, 8). Specimens are pale with the head and pronotum evenly yellow-orange and the elytra evenly brown. The short, stout median lobe with the lateral margins sinuate and apically convergent to a bispinous apex (Fig. 6) is unique in the D. nitida species-group.   
 Description. Measurements: TL = 1.4–1.5 mm, GW = 0.9–1.0 mm, HW = 0.5 mm, EW = 0.3 mm, TL/GW = 1.5, HW/EW = 1.8–1.9. Coloration: Head and pronotum evenly yellow-orange. Elytron evenly brown. Ventral surfaces and appendages orange. Male genitalia: Male median lobe in lateral aspect short, moderately broad basally, apically narrow, curved and apically narrowly rounded (Fig. 5). Median lobe in ventral aspect broad basally, lateral margins convergent apically, broadly sinuate, apically abruptly constricted to sharply bifid apex (Fig. 6). Lateral lobe in lateral aspect very large, broad basally, curved apically, terminating in 2 long lobes, ventral lobe somewhat sinuate, apically pointed and setose, dorsal lobe narrow basally, apically slightly expanded with apex rounded (Figs. 7, 8).   
 Variation. No noticeable variation was detected.   
 Etymology. This species is named delongi in honor of Dr. Mahlon R. DeLong, MD.   
 Distribution. This species is only known from the type locality in Suriname (Fig. 69).   
 Habitat. Specimens were collected from “detrital pools along stream” and “margin of stream.”   
 Type Material. Holotype in NZCS, male labeled, “ SURINAME: Sipaliwini District 04°40.910ʹN, 56°11.138ʹW, 78 m Raleighfallen nature Reserve Voltzberg trail; detrital pools along stream; leg. A. Short, C. McIntosh 30.vii.2012; SR12-0730-01B/ SEMC1113593 KUNHM-ENT [label with barcode]/ HOLOTYPE Desmopachria delongi Miller and Wolfe, 2017 [red label with black line border].” Paratypes: Five labeled same as holotype except with different specimen barcode labels and each with “… PARATYPE Desmopachria delongi Miller and Wolfe, 2017 [blue label with black line border].” Specimen catalog numbers are in Table 1.
description: Published as part of Miller, Kelly B. & Wolfe, G. William, 2018, Nine New Species in the Desmopachria nitida Species-Group of the Neotropical Genus Desmopachria Babington, 1841 (Coleoptera: Adephaga: Dytiscidae: Hydroporinae: Hyphydrini), pp. 97-112 in The Coleopterists Bulletin 72 (1) on page 101, DOI: 10.1649/0010-065X-72.1.97, http://zenodo.org/record/4836701