Telmatometropsis fredyi gen. nov., sp. nov.: a new water strider from the Colombian Pacific region (Insecta, Hemiptera, Gerridae) Author Mondragon-F., Silvia P. Laboratorio de Entomologia, Universidad Pedagogica y Tecnologica de Colombia, Avenida Central del Norte 39 - 155, Tunja, BY, Colombia Author Morales, Irina https://orcid.org/0000-0003-2456-5674 Laboratorio de Entomologia, Universidad Pedagogica y Tecnologica de Colombia, Avenida Central del Norte 39 - 155, Tunja, BY, Colombia irina.morales@uptc.edu.co Author Moreira, Felipe F. F. https://orcid.org/0000-0002-6692-0323 Laboratorio de Biodiversidade Entomologica, Instituto Oswaldo Cruz, Fundacao Oswaldo Cruz, Av. Brasil, 4365, Pavilhao Mourisco, sala 214. Manguinhos, Rio de Janeiro, RJ, Brazil text ZooKeys 2021 2021-06-11 1043 87 102 http://dx.doi.org/10.3897/zookeys.1043.58548 journal article http://dx.doi.org/10.3897/zookeys.1043.58548 1313-2970-1043-87 0286F2B80E1E4DC6B8B071652BF1A39D 609F60F506405354A21B529A62F4C4BF Telmatometropsis fredyi sp. nov. Figs 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , Tables 2 , 3 Description. Male. [For measurements see Table 2 .] Color . Ground color yellow. Head dorsally pale yellow, with three longitudinal brown stripes between eyes; stripes connected posteriorly (Fig. 1A ). Venter of head light brown (Fig. 2A ). Eye golden brown. Antenna yellowish-brown to brown. Labial articles I-III light brown with brown longitudinal stripe; article IV dark brown. Pronotum pale yellow, with a dark brown median stripe throughout length and laterally with a pair of dark brown longitudinal stripes reaching slightly beyond middle of length. Mesonotum pale yellow, covered with silvery pilosity, with brown spots on anterior margin, a dark brown median stripe almost reaching posterior margin, and a pair of dark brown longitudinal stripes laterally; lateral stripes posteriorly narrowed and connected to mesopleural stripes (Fig. 2B ). Metanotum velvety, dark brown with central subtriangular spot of dense silvery pubescence and two lateral spots of silvery pubescence. Mesopleura covered with silvery pubescence, with a longitudinal dark brown stripe on its ventralmost portion; stripe posteriorly connected to mesonotal stripe. Meso- and metacetabula with pruinose patches. Prosternum pale yellow; mesosternum pale yellow with two longitudinal brown spots (Fig. 2A ); metasternum with posterior subtriangular dark brown spot (Fig. 2A ). Abdominal mediotergite I dark brown, with silvery pubescence on posterolateral corners; mediotergite II dark brown, with central yellow spot posteriorly and silvery pubescence on posterolateral corners; mediotergites III-VI dark brown, covered with pruinose layer, with central yellow spots varying in size; mediotergites VII-VIII pale yellow, covered with abundant pubescence of same color; mediotergite VII dark brown on anterior margin. Abdominal laterotergites yellow, with patches of light setae. Abdomen laterally dark brown. Foreleg: coxa pale yellow; trochanter pale yellow, with brown lateral fringe; femur dorsally brown, ventrally pale yellow, mesal margin larerally yellow, with longitudinal white line; tibia brown; tarsus dark brown. Mid leg: coxa pale yellow; trochanter brown; femur dorsally brown, ventrally pale yellow; tibia with basal half brown and apical half dark brown; tarsus dark brown. Hind leg: coxa pale yellow; trochanter pale yellow; femur dorsally brown, ventrally pale yellow with dark brown apex; tibia and tarsus dark brown. Structure . Head with frons rounded. Antennomere I curved laterally; antennomere II shortest; antennomere IV longest (Fig. 1A, B ). Fore leg: femur widened in basal half, ventrally flattened (Fig. 3A ), with ventrolateral row of 4-7 small bristles; apex of tibia with long black bristles laterally and grooming structures (Fig. 4C ); tarsomere I 1/4 of tarsomere II length; tarsomere II strongly curved in lateral view, flattened laterally, and apically bifid, with a shorter and a longer portion, with cuticular subconical pegs (Fig. 4B ); claws long, strongly curved back (Figs 3B, C, E , 4A ). Mid tarsomere I with few bristles at base. Hind femur with five dorsal trichobothria. Abdominal laterotergites elevated at approximately 45° (Fig. 1A, B, D ). Abdominal segment VIII dorsally with a small central notch on posterior margin (Fig. 1A, B ). Paramere with apex curved up and rows of bristles close to apex (Fig. 5B, C ); proctiger oval, covered with setae (Fig. 5A ); sclerites as in Fig. 5 D-E . Table 2. Measurements of male morphological structures of Telmatometropsis fredyi sp. nov.

Structure	Male 1	Male 2	Male 3	Male 4	Male 5	Male 6	Male 7	Male 8	Male 9	Male 10	Maximum	Minimum	Average
BL	3.17	3.01	3.20	3.02	3.04	2.90	3.05	3.21	3.18	2.90	3.21	2.90	3.07
BW	1.13	1.09	1.11	1.07	1.21	1.13	1.13	1.19	1.12	1.12	1.21	1.07	1.13
HW	0.28	0.28	0.32	0.31	0.32	0.29	0.31	0.35	0.32	0.31	0.35	0.28	0.31
ANT I	0.48	0.40	0.47	0.45	0.40	0.44	0.48	0.44	0.47	0.47	0.48	0.40	0.45
ANT II	0.29	0.31	0.35	0.30	0.32	0.33	0.34	0.32	0.32	0.31	0.35	0.29	0.32
ANT III	0.70	0.71	0.75	0.71	0.74	0.68	0.72	0.68	0.71	0.66	0.66	0.75	0.71
ANT IV	0.85	0.80	0.95	0.95	0.97	0.94	0.91	0.84	0.85	0.87	0.97	0.80	0.89
PL	0.30	0.27	0.32	0.28	0.31	0.30	0.32	0.30	0.31	0.31	0.32	0.27	0.30
AL	1.23	1.10	1.10	1.03	1.03	1.16	1.21	1.23	1.27	1.12	1.27	1.03	1.15
Fore leg
FEM	1.10	1.13	1.11	1.02	1.07	1.16	1.14	1.14	1.16	1.16	1.16	1.02	1.12
TIB	1.10	1.19	1.14	1.12	1.12	1.15	1.16	1.12	1.16	1.11	1.19	1.10	1.14
TAR I	0.10	0.06	0.07	0.07	0.10	0.08	0.08	0.09	0.09	0.09	0.10	0.06	0.08
TAR II	0.27	0.32	0.31	0.31	0.26	0.31	0.29	0.28	0.31	0.34	0.34	0.26	0.30
Mid leg
FEM	1.82	1.83	1.77	1.75	1.79	1.82	1.86	1.74	1.86	1.75	1.86	1.74	1.80
TIB	2.64	2.64	2.61	2.46	2.69	2.55	2.66	2.61	2.62	2.62	2.69	2.46	2.61
TAR I	0.93	0.87	0.87	0.63	0.88	0.81	0.87	0.80	0.82	0.88	0.93	0.63	0.84
TAR II	0.68	0.71	0.73	0.52	0.79	0.73	0.70	0.73	0.50	0.68	0.79	0.50	0.68
Hind leg
FEM	2.27	2.19	2.21	2.19	2.22	2.22	2.24	2.25	2.10	2.23	2.27	2.10	2.21
TIB	0.93	0.92	0.93	0.89	0.91	0.81	0.92	0.88	0.92	0.92	0.93	0.81	0.90
TAR I	0.22	0.21	0.22	0.21	0.22	0.19	0.21	0.21	0.22	0.21	0.22	0.19	0.21
TAR II	0.27	0.27	0.27	0.26	0.28	0.25	0.26	0.26	0.26	0.27	0.28	0.25	0.27

Figure 4. Telmatometropsis fredyi gen. nov, sp. nov., scanning electron micrographs A-C male A fore pretarsal claw, lateral view B fore tarsomere II, area with cuticular pegs adjacent to pretarsal claw insertion, ventral view C apex of fore tibia with grooming structures, ventral view D female, apex of fore tibia with grooming structures, ventral view. Scale bars: 20 μm ( A ); 10 μm ( B, C, D ). Figure 5. Telmatometropsis fredyi gen. nov, sp. nov., male, scanning electron micrographs A proctiger, dorsal view B paramere, lateral view C detail of paramere setiferation D-E sclerites D lateral view E dorsal view. Abbreviations: sclerite (ls), dorsal sclerite (ds). Scale bars: 40 μm ( A ); 20 μm ( B ); 0.25 mm ( D-E ). Female. [For measurements see Table 3 .] Similar in color and structure to male, but larger and more robust (Fig. 6A-C ). Central spot on metanotum quadrate (Fig. 6A ). Spot on metasternum inverted "T" -shaped (Fig. 6B ). Abdominal mediotergites dark brown, with central yellow spots; mediotergites II-IX with pruinose patches laterally (Fig. 6C ); laterotergites without patches of light setae (Fig. 6A ). Fore leg: femur slightly curved at the base (Fig. 6D ), with 3-7 bristles; tibia with grooming structures (Fig. 4D ); tarsomere II cylindrical, flattened laterally (Fig. 6E ). Abdominal laterotergites elevated by almost 90° (Fig. 6A ). Table 3. Measurements of female morphological structures of Telmatometropsis fredyi sp. nov.

Structure	Female 1	Female 2	Female 3	Female 4	Female 5	Female 6	Female 7	Female 8	Female 9	Female 10	Maximum	Minimum	Average
BL	3.30	3.62	3.65	3.54	3.56	3.46	3.47	3.91	3.85	3.42	3.91	3.30	3.58
BW	1.50	1.50	1.51	1.52	1.51	1.47	1.44	1.50	1.50	1.46	1.52	1.44	1.49
HW	0.34	0.34	0.36	0.35	0.35	0.36	0.37	0.36	0.36	0.36	0.37	0.34	0.36
ANT I	0.49	0.55	0.53	0.54	0.53	0.55	0.54	0.54	0.55	0.51	0.55	0.49	0.53
ANT II	0.35	0.34	0.36	0.35	0.34	0.37	0.33	0.36	0.36	0.34	0.37	0.33	0.35
ANT III	0.74	0.71	0.74	0.73	0.78	0.81	0.68	0.83	0.79	0.73	0.83	0.68	0.75
ANT IV	0.91	0.79	0.95	1.02	0.97	0.95	0.91	1.00	0.93	0.91	1.02	0.79	0.93
PL	0.29	0.32	0.33	0.30	0.31	0.33	0.34	0.34	0.32	0.30	0.34	0.29	0.32
AL	1.53	1.71	1.72	1.70	1.72	1.63	1.64	1.90	1.82	1.60	1.90	1.53	1.70
Fore leg
FEM	1.12	1.08	1.17	1.13	1.18	1.19	1.14	1.14	1.14	1.18	1.19	1.08	1.15
TIB	1.04	1.07	1.10	1.07	1.09	1.08	1.09	1.10	1.13	1.10	1.13	1.04	1.09
TAR I	0.10	0.09	0.09	0.11	0.12	0.10	0.12	0.08	0.08	0.10	0.12	0.08	0.10
TAR II	0.34	0.43	0.43	0.37	0.40	0.41	0.40	0.40	0.43	0.39	0.43	0.34	0.40
Mid leg
FEM	2.08	2.11	2.10	2.10	2.20	2.22	2.06	2.16	2.00	2.09	2.22	2.00	2.11
TIB	3.14	2.98	3.11	3.15	3.14	3.21	3.13	3.07	2.77	3.07	3.21	2.77	3.08
TAR I	1.09	0.96	1.07	1.07	1.00	1.09	1.02	1.02	0.96	1.06	1.09	0.96	1.03
TAR II	0.71	0.81	0.83	0.86	0.70	0.89	0.84	0.84	0.69	0.85	0.89	0.69	0.80
Hind leg
FEM	2.60	2.52	2.63	2.46	2.67	2.63	2.63	2.67	2.67	2.61	2.67	2.46	2.61
TIB	1.15	1.11	1.14	1.17	1.15	1.13	1.12	1.12	1.05	1.14	1.17	1.05	1.13
TAR I	0.26	0.26	0.28	0.27	0.27	0.27	0.27	0.27	0.25	0.27	0.28	0.25	0.27
TAR II	0.33	0.32	0.33	0.34	0.33	0.35	0.34	0.35	0.33	0.31	0.35	0.31	0.33

Figure 6. Telmatometropsis fredyi gen. nov, sp. nov., female A dorsal view B ventral view C lateral view D-E scanning electron micrographs D fore leg, ventral view E apex of fore tibia and fore tarsus, ventral view. Scale bars: 1 mm ( A, B, C ); 200 μm ( D ); 100 μm ( E ). Type material. Holotype . Colombia • apterous male; Valle del Cauca, Buenaventura, La Bocana, lagoon, 8.XI.2003; Molano & Camacho leg. (UPTC-In-00001). Paratypes . 1 apterous female; Valle del Cauca, Buenaventura, La Bocana, lagoon, 4.XI.2004, Molano & Morales leg. (UPTC-In-00002). 5 apterous males and 5 apterous females, same data as for holotype (UPTC-In-00003). 2 apterous males and 2 apterous females; Valle del Cauca, Buenaventura, La Bocana, lagoon, 4.XI.2004, Molano & Morales leg. (CEIOC 76834). 1 apterous female; Valle del Cauca, Buenaventura, Santa Clara, 17.V.2004, Camacho & Molano leg. (UPTC-In-00004). 4 apterous males and 12 apterous females; Valle del Cauca, Buenaventura, La Bocana, lagoon, 4.XI.2004, Molano & Morales leg. (UPTC-In-00208). 2 apterous males and 8 apterous females; Valle del Cauca, Buenaventura, La Bocana, lagoon, 8.XI.2003, Molano & Camacho leg. (UPTC In-00209). 1 apterous male and 1 apterous female; Valle del Cauca, Buenaventura, Punta Arenas, mangrove lagoons, 26.I.1986, M.R. Manzano leg. (UPTC-In-00210). Etymology. The new species is named in honor of Professor Fredy Molano, who made a great contribution to the knowledge of Gerromorpha from Colombia. Habitat notes. The species inhabits mangrove lagoons in Buenaventura Bay, Valle del Cauca Department, Pacific region of Colombia (Figs 7 , 8 ). Figure 7. Geographical distribution of Telmatometropsis fredyi gen. nov, sp. nov. Figure 8. Type locality of Telmatometropsis fredyi sp. nov.; mangrove lagoons in Buenaventura Bay, Valle del Cauca, Colombia. Figure 9. Apterous holotype male, Telmatometroides rozeboomi (Drake & Harris, 1937) A dorsal view B ventral view C labels D fore tarsus, internal lateral view. Scale bar: 0.25 mm.