A New Genus of Oak Gall Wasp, Striatoandricus Pujade-Villar (Hymenoptera: Cynipidae: Cynipini) from America with Descriptions of Two New Mexican Species Author Cuesta-Porta, Víctor Author Arnedo, Miquel A. Author Cibrián-Tovar, David Author Barrera-Ruiz, Uriel M. Author García-Martiñón, Rosa D. Author Equihua-Martínez, Armando Author Estrada-Venegas, Edith G. Author Clark-Tapia, Ricardo Author Romero-Range, Silvia Author Pujade-Villar, Juli text Zoological studies 2020 Zool. Stud. 2020-02-27 59 8 1 21 journal article 10.6620/ZS.2020.59-08 Stiatoandricus nievesaldreyi ( Pujade-Villar 2011) n. comb. Andricus mexicanus Kinsey 1920: 309 [non Andricus mexicana Bassett, 1890 ] Andricus nievesaldreyi Pujade-Villar 2011 ; in Pujade-Villar et al. 2011: 32 [new name] Studied material : For type material consult Kinsey (1920) and Pujade-Villar et al. (2011) . Additional material : MEX-039, Parque Nacional de la Sierra de Quila (Tecolotlán, Jalisco, México ), ( 06. iii.2010 ) 16–20.iii.2010 : 68, Ex Q. magnoliifolia , A. Equihua and E. Estrada leg.; MEX-050, Parque Nacional de la Sierra de Quila (Tecolotlán. Jalisco , México ), (06.iii.10) 16–20.iii.10: 28, Ex Q. magnoliifolia , A. Equihua and E. Estrada leg.; MEX-308, Natívitas ( Tlaxcala , México ), ( 13.i.2015 ) 19.ii.2015 : 28, Ex Quercus sp. , A. Equihua and E. Estrada leg.; MEX-318, Mineral el Chico: Mineral el Chico ( Hidalgo , México ), ( 08.x.2014 ) 20-x.2014 : 18, Ex Q. rugosa , Elgar Castillo leg. (11G); MEX-319, Coajomulco: Coajomulco ( Morelos , México ), ( 05.xii.2016 ) 22- xii.2016 : 118, Ex Q. rugosa , Elgar Castillo leg. (11H); MEX-322, Coajomulco: Coajomulco ( Morelos , México ), ( 05.xii.2016 ) 16-xii.2016 : 98, Ex Q. rugosa , Elgar Castillo leg. (12C); MEX-323, Coajomulco: Coajomulco ( Morelos , México ), ( 05.xii.2016 ) 16– xii.2016 : 48, Ex Q. rugosa , Elgar Castillo leg. (12D); MEX-325, Coajomulco: Coajomulco ( Morelos , México ), ( 05.xii.2016 ) 11-xii.2016 : 28, Ex Q. rugosa , Elgar Castillo leg. (12F); MEX-329, Coajomulco: Coajomulco ( Morelos , México ), ( 05.xii.2016 ) 15- xii.2016 : 18, Ex Q. rugosa , Elgar Castillo leg. (12J); MEX-345, Zumpimito ( 19°22'27.4"N , 102°02'56.7"W ), Urapan ( Michoacán , México ), ( iii.2018 ) 15.vi.2018 : 68, Ex Quercus sp , A. Equihua and E. Estrada leg.; MEX-346, Coajomulco: Coajomulco ( Morelos , México ), ( 05.xii.2016 ) 17.xii.2016 : 58, Ex Q. rugosa , Elgar Castillo leg.(12G); MEX-347, Santa Fe ( Ciudad de México , México ), 15.i.2016 ( 25.iii.2016 ): 68, Ex Q. laeta , DCT leg. (2881). Supplementary material: MEX-105 MAZ-Unknown location ( México ), ( 10.i.2012 ) 07.ii.2012 , Ex Quercus sp. , A. Equihua and E. Estrada leg. © 2020 Academia Sinica, Taiwan Hosts : The first hosts for this species are mentioned here: Q. laeta Liebm. , Q. magnoliifolia Née and Q. rugosa Née ( Quercus section). Distribution : México , described from material collected in the Sierra de Nayarit ( Jalisco , México ). Its distribution also includes in the states of Ciudad México , Hidalgo , Michoacán , Morelos and Tlaxcala . Remarks : Kinsey (1920) described Andricus mexicanus from four adults that emerged in 1919 from galls on the upper side of leaves. Those galls were collected in 1900 by Diquet in Sierra de Nayarit ( Jalisco , México ) presumably from Q. magnifolia Née (= Q. macrophylla Née ). Kinsey (1920) assigned to this species the individuals determined as Andricus mexicana Bassett, 1890 and Cynips guatemalensis Cameron, 1883 from the collections of Bassett (1890) at Guadalajara mountains ( México ) and Cameron (1883) at San Jerónimo (Guadalajara, México ), respectively. A solution for the homonymy between Kinsey’s and Bassett’s species was proposed in Pujade-Villar et al. (2011) by changing the name of Andricus mexicanus Kinsey 1920 to Andricus nievesaldreyi Pujade-Villar 2011 . The species A. mexicana Bassett and C. guatemalensis Cameron were only described through velvety galls on leaves. Both adults with smooth metasoma ( Andricus tecturnarum group) and with striate metasoma ( Striatoandricus ) emerge from this type of galls from USA and México . Thus, Pujade-Villar et al. (2011) considered those two species incertae sedis until similar galls are collected at the type localities and the adults emerge. There exists a big morphological variability in adults of this species in the following characters: (i) the color is very variable, usually is ambarine with black marks but some specimens lack black marks and others are black and (ii) the metasoma sculpture has smooth areas with variably extension.