Ambrysus scalenus La Rivers

Ambrysus scalenus La Rivers View in CoL

( Fig. 7 View FIGURE 7 )

Ambrysus scalenus La Rivers 1953b View in CoL : Univ. Kans. Sci. Bull., 35: 313–314.

Published records. Mexico: Estado de México, Michoacán ( La Rivers 1953b; Reynoso-Velasco & Sites 2016a, 2018a, 2018b, 2019b).

New state records. Mexico: Guerrero, Oaxaca, Puebla .

Distribution. The previously known distribution of this species included only two locations, El Sabino ( type locality in Michoacán) and Paso de Vigas (Estado de México). Based on the material examined for this study, Ambrysus scalenus is distributed exclusively in central Mexico ( Fig. 7 View FIGURE 7 ). The collecting records, all below an elevation of 2000 meters, fall within the boundaries of the Balsas Basin biogeographic province; thus, A. scalenus apparently is endemic to this province. The highest elevation where the species has been collected is 1851 meters, in the upper section of the Balsas Basin ( Oaxaca). There are no records of the species from Morelos, but this central state is entirely within the upper section of the Balsas Basin; therefore, A. scalenus most likely is present in this area.

Material examined. ESTADO DE MÉXICO: Mpio.Amatepec, Las Adjuntas, Río San Felipe , 05-Mayo-2008, Novelo & Cuevas colls. ( 1♀ UMC) ; [ Mpio. Tejupilco], Acamochitlan, El Zapote, [El Zapote de Acamuchitlán], 21- XI-1984, H. Brailovsky / Colección del Instituto de Biología , UNAM , México D.F. / C.J. Drake Accession ( 2♀ USNM) ; [Mpio. Tejupilco], Bejucos, Río Bejucos , 700 m, 22-Abr-2004, R. Novelo coll. / Ambrysus sp. R. Novelo det. 2004 ( 4♂, 1♀ UMC) ; [ Mpio. Tejupilco], Bejucos, Río Bejucos , 1950’, 22-IV-2004 / William D. Shepard, leg. ( 1♀ EMEC) ; [ Mpio. Tejupilco], Bejucos, Temascaltepec, 3-VII-1933 / H.E. Hinton & R.L. Usinger colls. / Ira La Rivers Collection Bequeathed to the California Academy of Sciences ( 1♂ CAS) ; Mpio. Tejupilco, Paso de Vigas , Arroyo Paso de Vigas , 18º53’32.6’’N, 100º13’57.0’’W, 1107 m, L-1459, 19-Dec-2012, Reynoso-Velasco coll. ( 6♂, 1♀ UMC) GoogleMaps ; same but 5-Apr-2015, L-1909, Reynoso-Velasco, Sites, Shepard & Barr colls. ( 1♂, 1♀ CNIN; 1♂, 1♀ IEXA; 2♂, 2♀ UMC) ; [ Mpio Tonatico], Tonatico, VII-1961 / Colección del Instituto de Biología , UNAM GoogleMaps , México D.F. ( 1♂ CNIN, 1♀ IEXA) ; Tejupilco, Mex., Temascaltepec , 24-VI-1933 / H.E. Hinton & R.L. Usinger colls. ( 1♂ CAS) ; same but 17-VI-1933 / Ira La Rivers Collection Bequeathed to the California Academy of Sciences ( 1♀ CAS) . GUERRERO: Km 154 carr. Iguala– Cd. Altamirano, 23-XI-1984, H. Brailovsky coll. / Colección del Instituto de Biología , UNAM , México D.F. ( 1♀ CNIN) ; same but / C.J. Drake Accession ( 1♀ USNM) ; same but E. Bar- rera coll. ( 1♂, 1♀ USNM) ; [ Mpio. Eduardo Neri ], 9 mi N of Zumpango, 8-Jan-1956, J.C. Shafftner / Prop. of J.C. Shafftner / C.J. Drake Accession ( 2♂ USNM) ; Mpio. Teloloapan, km 20 carr. Teloloapan-Apaxtla de Castrejón , nr. Tepozanalquillo , 18º14’26.8’’N, 99º54’51’’W, 1083 m, 29-Dec-2012, L-1497, Reynoso-Velasco coll. ( 1♀ UMC) GoogleMaps ; Ruta El Caracol, aprox. km 38 Teloloapan, 22-X-1988, J. Bueno coll. / Colección del Instituto de Biología , UNAM GoogleMaps , México D.F. ( 1♀ IEXA) . MICHOACÁN: Mpio. Buenavista, Buenavista Tomatlán , 19º12’57.8’’N, 102º34’30.2’’W, 440 m, 24-Dec-2012, L-1481, Reynoso-Velasco coll. ( 2♀ UMC) GoogleMaps ; Mpio. Carácuaro, Río San Diego at Carácu- aro, 19º01’04.8’’N, 101º07’33.2’’W, 519 m, 22-Dec-2012, L-1473, Reynoso-Velasco coll. ( 1♂ UMC) GoogleMaps ; Mpio. La Huacana , La Huacana , Colonia Lázaro Cárdenas , 18º57’19’’N, 101º48’43.2’’ W, 458 m, L-1478, 23-Dec-2012, Reynoso-Velasco coll. ( 1♂, 1♀ UMC) GoogleMaps ; Mpio. Nocupétaro, San Antonio de la Huerta ( Melchor Ocampo ), 19º02’ 04.4’’N, 101º15’07.9’’W, 624 m, 22-Dec-2012, L-1475, Reynoso-Velasco coll. ( 1♂ IEXA) GoogleMaps ; Mpio. Tepalcatepec, Los Horcones, Pte. Pinolapa at km 31 carr. Tepalcatepec-Coalcomán , 19º00’31.3’’N, 103º01’25.6’’W, 554 m, 25- Dec-2012, L-1484, Reynoso-Velasco coll. ( 3♂, 2♀ UMC) GoogleMaps ; [Mpio. Tepalcatepec], Tepalcatepec, Río Pinolapa , 16- May-2002, R. Novelo coll. ( 1♀ UMC) ; Mpio. Tuzantla, Río Tuzantla at Tuzantla , 19º13’18.1’’N, 100º34’05.5’’W, 593 m, 21-Dec-2012, L-1470, Reynoso-Velasco coll. ( 1♂ IEXA) GoogleMaps GoogleMaps . OAXACA: [ Mpio. Santiago Cacaloxtepec ], 12 mi SE of Huajuapan [ de León], 4-VII-1953, 6000 ft / Univ.Kans.Mex. Expedition / Slesnick Field No. 33 / Ambrysus scalenus La Rivers ( 5♂, 3♀ SEMC); same but / Ira La Rivers Collection Bequeathed to the California Academy of Sciences ( 1♀ CAS) . PUEBLA: [Mpio.Ahuehuetitla], 10 mi SE of Tehuitzingo, 3900 ft, 3-VII-1933 / Univ.Kans. Mex. Expedition / Slesnick Field No. 32 / Ambrysus scalenus La Rivers 1953 ( Ira La Rivers ) (1 indet. SEMC) .