Desmopachria gingerae Miller and Wolfe, 2018

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), The Coleopterists Bulletin 72 (1), pp. 97-112 : 101-103

Desmopachria gingerae Miller and Wolfe , new species

Zoobank.org/ urn:lsid:zoobank.org:act:7BF6AE17-3AEE-4389-964B-3F4DA4ED67C5 ( Figs. 9–11 , 70 )

Type Locality. Venezuela, Amazonas, S Cummindad Porvenir, 5°20.514ʹ N, 67°45.315ʹ W .

Diagnosis. This species differs from others in this group by the elongate, slender male median lobe. In lateral aspect, the lobe is broader medially but abruptly narrowed and apically slender and sinuate ( Fig. 9 ). In ventral aspect, it is moderately broad with the lateral margins broadly sinuate and the apex long and needle-like ( Fig. 10 ). The median lobe is somewhat similar to that of Desmopachria vohrae Miller and Wolfe , new species, but that species has the lateral margins less characteristically sinuate and the apex less needlelike and more distinctly bifid in ventral aspect ( Fig. 30 ). Coloration is moderately distinctive, head and pronotum dark orange and elytron lighter in color than head and pronotum, but with large, diffuse, medial blackish region. Specimens

Species KUNHM accession numbers

D. gyrationi SEMC 0934044, SEMC0934057, SEMC0934059, SEMC1047821, SEMC1047951, SEMC1047958, SEMC1047962, SEMC1048218, SEMC1080241, SEMC1080261, SEMC1080337, SEMC1080347, SEMC1237120, SEMC1237123,SEMC1237144, SEMC1271095, SEMC1271109, SEMC1271644, SEMC1271663, SEMC1271668, SEMC1271684, SEMC1271730, SEMC1272019, SEMC1272087, SEMC1272091, SEMC1272118, SEMC1272141,SEMC1272156, SEMC1272168, SEMC1272171, SEMC1272243, SEMC1272580, SEMC1272581, SEMC1272582, SEMC1272583, SEMC1272584, SEMC1272586, SEMC1272587, SEMC1272589, SEMC1272590, SEMC1272591, SEMC1272592, SEMC1272600, SEMC1272602,SEMC1272608, SEMC1272610, SEMC1272611, SEMC1272614, SEMC1273475, SEMC1273491, SEMC1273495, SEMC1273509, SEMC1273523, SEMC1273530, SEMC1273537, SEMC1273538, SEMC1273541, SEMC1273544, SEMC1273548, SEMC1273669

D. gingerae SEMC 0852857, SEMC0852858, SEMC0852873, SEMC0852874, SEMC0853861, SEMC0853862, SEMC0853863, SEMC0853892, SEMC0853904, SEMC0854126, SEMC0876512, SEMC0876513, SEMC0876516, SEMC0876517, SEMC0876518, SEMC0876519, SEMC0876520, SEMC0876521, SEMC0876522, SEMC0876523, SEMC0876524, SEMC0876525, SEMC0876542, SEMC0881776, SEMC0881777, SEMC0881778, SEMC0881780, SEMC0881781, SEMC0881782, SEMC0881784, SEMC0881785, SEMC0881787, SEMC0881789, SEMC0881791, SEMC0881792, SEMC0881793, SEMC0881794, SEMC0881795, SEMC0881796, SEMC0881797, SEMC0881798, SEMC0881800, SEMC0881801, SEMC0881803,SEMC0881804,SEMC0881806, SEMC0881810,SEMC0881811, SEMC0881812, SEMC0881813, SEMC0881814, SEMC0881815, SEMC0881823, SEMC0881825, SEMC0881826, SEMC0881827, SEMC0881837, SEMC0881838, SEMC0889860, SEMC0889866, SEMC0889868, SEMC0889876, SEMC0889886, SEMC0889891, SEMC0889892, SM0843743, SM0843748, SM0843753, SM0843754, SM0843758, SM0843759

D. hardyae SEMC 0892960, SEMC0892979, SEMC0892980, SEMC0892983, SEMC0892998, SEMC0892999, SEMC0893000, SEMC0893001, SEMC0893003, SEMC0893004, SEMC0893018, SEMC0893020, SEMC0893030, SEMC0893040, SEMC0893052, SEMC1028486, SEMC1028497, SEMC1028498, SEMC1028540, SEMC1030116, SEMC1030122,SEMC1030125, SEMC1030127, SEMC1030136, SEMC1030140, SEMC1030141, SEMC1030568, SEMC1030574, SEMC1030577, SEMC1030580, SEMC1030585, SEMC1030586, SEMC1030599, SEMC1030600, SEMC1030602, SEMC1030604, SEMC1030607, SEMC1030608,SEMC1030609, SEMC1030611, SEMC1030613, SEMC1030615, SEMC1030618, SEMC1030619, SEMC1030620, SEMC1030621, SEMC1030622, SEMC1030631, SEMC1030636, SEMC1030638, SEMC1030678, SEMC1030680, SEMC1030681, SEMC1030682, SEMC1030683, SEMC1030684, SEMC1030686, SEMC1030690, SEMC1030703, SEMC1030704, SEMC1030718, SEMC1030730, SEMC1030737, SEMC1030739, SEMC1030746, SEMC1030747, SEMC1030748, SEMC1030750, SEMC1030752, SEMC1030764, SEMC1030767, SEMC1030770, SEMC1030805, SEMC1030809, SEMC1030817, SEMC1030819, SEMC1030833, SEMC1030837, SEMC1044801, SEMC1044812, SEMC1044815, SEMC1044844, SEMC1080236, SEMC1080250, SEMC1080254, SEMC1080255, SEMC1080256, SEMC1080257, SEMC1080259, SEMC1080262, SEMC1080264, SEMC1080268, SEMC1080273, SEMC1236930, SEMC1236931, SEMC1236933, SEMC1236971, SEMC1236979, SEMC1236994, SEMC1236995, SEMC1236996, SEMC1236998, SEMC1236999, SEMC1237000, SEMC1237001, SEMC1237002, SEMC1237003, SEMC1237005, SEMC1237006, SEMC1237007, SEMC1237008, SEMC1237010, SEMC1237011, SEMC1270381

D. delongi SEMC 1113363, SEMC1114787, SEMC1114807, SEMC1114823, SEMC1114830

D. kemptonae SEMC 0853088, SEMC0853089, SEMC0853316, SEMC0853321, SEMC0853330, SEMC0853330, SEMC0853358, SEMC0853367, SEMC0853413, SEMC0853414, SEMC0853421, SEMC0909338, SEMC0909345, SEMC1030114, SEMC1030666,SEMC1030667, SEMC1030668, SEMC1030670, SEMC1030671, SEMC1030672, SEMC1030674, SEMC1030675, SEMC1030676, SEMC1030677, SEMC1030687, SEMC1030689

are relatively small for the genus (TL = 1.4–1.5 mm).

Description. Measurements: TL = 1.4–1.5 mm, GW = 1.0– 1.1 mm, HW = 0.5–0.6 mm, EW = 0.3 mm, TL/GW = 1.2–1.4, HW/EW = 2.0–2.1. Coloration: Head and pronotum pale orange, posterior margin of pronotum medially narrowly brown-black. Elytron with base color orange-brown, lighter than head and pronotum, with broadly expanded diffuse blackish region medially near suture. Head appendages, legs, and ventral surfaces orangebrown. Male genitalia: Male median lobe in lateral aspect long and slender, apical portion sinuate, apex extremely slender and apically acute ( Fig. 9 ). Median lobe in ventral aspect moderately slender, lateral margins sinuate, convergent to long, slender, needle-like apex ( Fig. 10 ). Lateral lobe broad basally, apically deeply emarginate, ventral ramus elongate, slender, apically narrowly rounded, dorsal ramus elongate, slightly expanded medially, apically rounded ( Fig. 11 ); in ventral aspect slender, apices of rami rounded.

Variation. Elytron with diffusely lighter medial area. Most specimens have the head and pronotum darker than the base color of the elytra except the large, diffuse, medial region of the elytron.

Etymology. This species is named gingerae in honor of the second author’ s youngest daughter, Ginger Wolfe-Suarez.

Distribution. This species has been found only in a few localities in southwestern Venezuela ( Fig. 70 ).

Habitat. Label data indicate that specimens were collected from a “small streamlet,” a “rocky morichal,” “rock pools,” and a “pool in culvert.”

Type Material. Holotype in MIZA, male labeled, “ VENEZUELA: Amazonas State 5°20.514ʹN; 67°45.315ʹW, 87m S. Communidad Porvenir 15.i.2009; leg. Miller & Short VZ09-0115-03B: small streamlet/ SEMC0852878 KUNHM-ENT [label with barcode]/ HOLOTYPE Desmopachria gingerae Miller and Wolfe, 2017 [red label with black line border].” Paratypes: Twenty-five labeled same as holotype except with different specimen barcode labels and each with “… PARATYPE Desmopachria gingerae Miller and Wolfe, 2017 [blue label with black line border];” 13 labeled “ VENEZUELA: Bolivar State 6°13ʹ4.6ʺN, 67°14ʹ26.4ʺW, 60m ca. 25 km E. El Burro 12.i.2009; leg. Short et al. rocky morichal: VZ09-0113-01X/…” and barcode and paratype labels; 36 labeled “ VENEZUELA: Amazonas State 5°48.414ʹN, 67°26.313ʹW, 80m nr. Iboruwa: “Tobogoncito” 13.i.2009; leg. A. Short et al. VZ09-0113-02X/…” and barcode and paratype labels; five labeled “ VENEZUELA: Amazonas State 5°20.514ʹ; 67°45.315ʹW, 87m S. Communidad Porvenir 15.i.2009; leg. Miller & Short VZ09-0115-03B; small streamlet/…” and barcode and paratype labels; 13 labeled “ VENEZUELA: Amazonas State 5°30.623ʹN: 67°36.109ʹW; 110m ca. 16 km S. Puerto Ayacucho 14.i.2000; rock pools et al. leg. A. Short: VZ09-0114-03B/…” and barcode and paratype labels; five labeled “ VENEZUELA: Amazonas State 5°20.514ʹN; 67°45.315ʹW; 87m La Communidad Porvenier 15.i.2009; leg. Short & Garcia VZ09-0115-03A/…” and barcode and paratype labels; Specimen catalog numbers are in Table 1 .

Figures

Figs. 1–32. Male genitalia of Desmopachria species in the D. nitida species-group. D. curseenae: Median lobe – 1) Right lateral aspect; 2) Ventral aspect; Right lateral lobe – 3) Right lateral aspect; 4) Ventral aspect. D. delongi: Median lobe – 5) Right lateral aspect; 6) Ventral aspect; Right lateral lobe – 7) Right lateral aspect; 8) Ventral aspect. D. gingerae: Median lobe – 9) Right lateral aspect; 10) Ventral aspect; 11) Right lateral lobe, right lateral aspect. D. gyrationi: Median lobe – 12) Right lateral aspect; 13) Ventral aspect; 14) Right lateral lobe, right lateral aspect. D. hardyae: Median lobe – 15) Right lateral aspect; 16) Ventral aspect; 17) Right lateral lobe, right lateral aspect. D. kemptonae: Median lobe – 18) Right lateral aspect; 19) Ventral aspect; Right lateral lobe – 20) Right lateral aspect; 21) Ventral aspect. D. lloydi: 22) Median lobe, ventral aspect; 23) Apices of median lobe, anterior aspect; Right lateral lobe – 24) Right lateral aspect; 25) Ventral aspect. D. singhae: Median lobe – 26) Right lateral aspect; 27) Ventral aspect; 28) Right lateral lobe, right lateral aspect. D. vohrae: Median lobe – 29) Right lateral aspect; 30) Ventral aspect; Right lateral lobe – 31) Right lateral aspect; 32) Ventral aspect.

Figs. 69–70. Distribution of Desmopachria species in the D. nitida species-group. 69) D. delongi, D. gyrationi, and D. kemptonae; 70) D. gingerae and D. hardyae.