Cataractocoris marginiventris Usinger

Sites, Robert W., Reynoso-Velasco, Daniel & Novelo-Gutiérrez, Rodolfo, 2013, Revision of the Mesoamerican Genus Cataractocoris Usinger (Hemiptera: Heteroptera: Nepomorpha: Naucoridae), Zootaxa 3682 (3), pp. 475-484 : 479-480

publication ID

https://doi.org/ 10.11646/zootaxa.3682.3.8

publication LSID

lsid:zoobank.org:pub:F8441847-AD70-4702-86EB-15D10B2873A4

DOI

https://doi.org/10.5281/zenodo.6159818

persistent identifier

https://treatment.plazi.org/id/03C687C7-FFD2-DD17-FF07-AE153D12FE4F

treatment provided by

Plazi

scientific name

Cataractocoris marginiventris Usinger
status

 

Cataractocoris marginiventris Usinger View in CoL

Figs. 6–9 View FIGURES 6 – 9 , 15 View FIGURE 15 b

Cataractocoris marginiventris Usinger 1941 View in CoL : Ann. Ent. Soc. Am. 34: 13–14.

Discussion. In the original description, this species was distinguished by Usinger (1941) from C. macrocephalus by straight lateral margins of the pronotum, shorter and proportionately broader profemora, alternating light and dark coloration of the connexivum, and a wide glabrous band surrounding the venter. We have found that some of these features are variable among populations and that a combination of these and other attributes are necessary to adequately characterize the species and enable identification. Although most specimens have unambiguously straight lateral margins of the pronotum, occasional individuals are clearly concave, especially in the anterior half. The checkered appearance of the connexivum in some specimens can be subtle. The discovery of a third species further confounds identifications because it is closest in appearance to C. marginiventris .

Usinger (1941) reported this species to occur in very fast water in which it was difficult to hold a net. We collected this species in similar habitats of large rocks in fast current, on the vertical rock faces of powerful waterfalls, some of which were covered with moss and algae, and on gentle spillways (e.g., L-1392, 1393). An atypical habitat was encountered when a series of specimens was collected from a vertical metal gate in a dam at site L-1481. The metal gate was wet because water was leaking from around the perimeter and algae were present.

Diagnosis. This species can be distinguished from C. macrocephalus by the wide, yellow, glabrous marginal band on the venter; its width at the widest point on the propleuron ranged from 0.64 to 0.92 mm (mean 0.76 ± 0.01), which overlaps with that of C. shepardi . Males can be distinguished from those of C. shepardi by the rounded midline of the pygophore between the parameres ( Fig. 9 View FIGURES 6 – 9 ) and the pointed distolateral corners of the pseudoparameres (median lobes of tergum VIII) ( Fig. 8 View FIGURES 6 – 9 ). In females, ventral laterotergite VII is deeply incised distally and at least the apex tends to be deflexed so that it is oriented nearly vertically ( Fig. 7 View FIGURES 6 – 9 ), in contrast to that of C. shepardi which is not incised and angled no greater than 45 degrees ( Fig. 12 View FIGURES 10 – 14 ). Females of both species can be distinguished from those of C. macrocephalus by the apical margin of the subgenital plate with the row of dense hairs more prominent on each side of the midline, rather than continuous across the margin.

Distribution. We have collected this species on both sides of the Central Mexican Plateau from Jalisco and Veracruz south to Chiapas, and we have examined specimens from Guatemala ( Fig. 15 View FIGURE 15 b). We report the first records of this species and genus from the Mexican states of Michoacán, Morelos, Puebla, Oaxaca, and Veracruz, and the Guatemalan department of Escuintla. Usinger (1941) previously reported C. marginiventris from Guerrero.

Type material examined. HOLOTYPE: MEXICO: [State of México]: Temescaltepec, VI-5-33 / H.E. Hinton, R.L. Usinger Collectors / HOLOTYPE Cataractocoris marginiventris R. L. Usinger / California Academy of Sciences Type No. 4974 (3, CAS). PARATYPES: same data as holotype / PARATYPE marginiventris Usinger (13, 6Ƥ, EMEC; 13, 1Ƥ, CAS).

Other material examined. GUATEMALA: Baja Verapaz Dept.: Los Encuentros, 25 June 1966, Flint & Ortiz (1Ƥ, USNM). MÉXICO: Chiapas: Velo de Novia waterfall, near Las Hermanas bridge, 15º 55' 11.3'' N, 93º 29' 45.9'' W, 144 m, 21 May 2012, D. Reynoso-Velasco, L-1359 (63, UMC). Guerrero: km 7 Taxco-Ixcateopan, 17-VI-87, E. Barrera (13, UNAM); 26 km NW El Paraiso, 1800 m., 8 Aug 1986, R. Davidson, J. Rawlins / Carnegie Museum (13, 3Ƥ, CMNH); same locality, 9 Aug 1986 (1Ƥ, CMNH). Jalisco: Rio Las Juntas y los Verranos at los Verranos waterfall, 18 February 1999, R. W. Sites, L-238 (73, 13Ƥ, 19 nymphs, UMC); Rio Mismaloya at Mismaloya, 18 February 1999, gravel/rocky stream, R. W. Sites, L-237 (53, 2Ƥ, UMC); Rio Tomatalan waterfall, Boca de la Tomatalan, 18 February 1999, R. W. Sites, L-236, (23, 2Ƥ, 7 nymphs, UMC); 5 mi. W. Plan de Barrancas, VII-21-1954, J.W. MacSwain / in spring water on steep hillside (1Ƥ, EMEC); Rio Guapinole, 1.3 rd. km E Las Juntas Verano - Las Juntas del Tuito, 17 Jan. 2005, C.B. Barr / 20°26.67' N, 105°16.45' W (43, 3Ƥ, EMEC); same data, W.D. Shepard leg. (1Ƥ, EMEC); 9.2 km Tacotán, 10 Jan 2005, 1250', Rio de Tepospisaloya / W.D. Shepard leg. (13, EMEC). State of México: Mpio. Donato Guerra, El Pericón, El Pericón River (spring), 19º18'14.7'' N, 100º15'50.2'' W, 2061 m, 21-DEC-2012, D. Reynoso-Velasco, L-1466 (1Ƥ, UMC); Temescaltepec, VII-1934 / H.E. Hinton (53, 2Ƥ, EMEC); same locality, VI-5-1933 / R. L. Usinger Collector (2 nymphs, EMEC); same locality, VI-21-1933 / H.E. Hinton, R.L. Usinger Collectors (1Ƥ, EMEC); same locality, 5 June 1933, H.E. Hinton, R.L. Usinger, Cal. Acad. Sci. Coll. / Ira La Rivers Collection, Bequeathed to the California Academy of Sciences Collection - 1978 (23, 1Ƥ, CAS); Real de Arriba, Temescaltepec, VII-13-33 / H.E. Hinton, R.L. Usinger Collectors (1Ƥ, EMEC); same locality, 19o 02.165' N, 99 o 59.669' W, elev 1913 m, 9 Nov. 2009, L- 1128, R. W. Sites & L. Cervantes (13, UMC); same locality, 19º02'30.6'' N, 100º00'24'' W, 1888 m, 19 Dec. 2012, D. Reynoso-Velasco, L-1458 (63, 11Ƥ, UMC); Tejupilco, Temescaltepec, VII- 1934, H.E. Hinton (13, 3Ƥ, EMEC); same locality, VI-19-1933 / H.E. Hinton, R.L. Usinger Collectors (13, EMEC), same locality, 15 June 1933, Robert L. Usinger, Cal. Acad. Sci. Coll. / Ira La Rivers Collection, Bequeathed to the California Academy of Sciences Collection - 1978 (23, CAS). [Morelos]: Cuernavaca, 1934, H.E. Hinton (1Ƥ, EMEC). Michoacán: Pedernales, Arroyo Frio, 19-IX-87, Col. E. Barrera V. / Colección del Instituto de Biologia, UNAM, México D.F. (13, 1Ƥ, UNAM); Cañada “El Colorín”, nr. La Nuez Village, 11 July 2006, coll: R. Novelo / torrential stream in ravine, 1050 m asl, 18°39.540' N, 103°24.570' W (13, UMC); same data, 9 Nov. 2005 (13, UMC); Mpio. Buenavista Tomatlán, Buenavista Tomatlán, 19º 12' 57.8'' N, 102º 34' 30.2'' W, 440 m, 24 Dec. 2012, D. Reynoso- Velasco, L-1481 (53, 4Ƥ, UMC). Oaxaca: km 84 carr. Tuxtepec-Oaxaca, predio Santiago Comaltepec, 17º 35' 35.5'' N, 96º 22' 57.8'' W, 161 m, 24 May 2012, D. Reynoso-Velasco, L-1372 (13, UMC); Mpio. Santa Maria Zacatepec, 1 km S of Santa Maria Zacatepec, San Miguel bridge, 16º 44' 10.1'' N, 97º 59' 33.3'' W, 328 m, 29 May 2012, D. Reynoso-Velasco, L-1392 (23, 3Ƥ, UMC); km 189 carr. Sta. Maria Zacatepec-Putla, S of El Tapanco, 16º 47' 28.3'' N, 97º 59' 20.4'' W, 341 m, 29 May 2012, D. Reynoso-Velasco, L-1393 (23, 2Ƥ, UMC). Puebla: carr. Atotocoyan-Mazatepec, 19º 59' 04'' N, 97º 25' 37.6'' W, 804 m, 0 3 June 2012, waterfall, D. Reynoso-Velasco, L- 1411 (43, 4Ƥ, UMC). Veracruz: Cascada de la Monja at Xico, Texolo, 4 April 2011, L-1291, rock face of waterfall / 1259 m, 18° 24.024' N, 96° 59.874' W, colls: Sites, Shepard, Amaya & Novelo (23, 4Ƥ, 49 nymphs, UMC); 4 km N of Sontecomapan, 2 April 2011, small, shallow, high velocity strm. w/ boulders / 93 m, 18°31.909' N, 95°03.498' W, colls: Sites, Shepard & Reynoso-Velasco, L-1285 (1Ƥ, UMC); Altotonga, Reserva Ecológica Pancho Poza, N 19° 44.593', W 97°14.896', 1927 m, 7 November 2009, Sites, Cervantes, & Novelo, L-1118 (23, UMC); same locality, 9 Julio 1999, R. Novelo (13, UMC).

CAS

California Academy of Sciences

EMEC

Essig Museum of Entomology

USNM

Smithsonian Institution, National Museum of Natural History

UNAM

Universidad Nacional Autonoma de Mexico

CMNH

The Cleveland Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Naucoridae

Genus

Cataractocoris

Loc

Cataractocoris marginiventris Usinger

Sites, Robert W., Reynoso-Velasco, Daniel & Novelo-Gutiérrez, Rodolfo 2013
2013
Loc

Cataractocoris marginiventris

Usinger 1941
1941
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