| argentina | | xiphinema index | species | 1 | 0 |
| argentina | | xiphinema krugi | species | 2 | 0 |
| armenia | | xiphinema vuittenezi | species | 1 | 0 |
| australia | | xiphinema diffusum | species | 2 | 0 |
| australia | queensland | xiphinema elongatum | species | 2 | 0 |
| austria | | xiphinema diversicaudatum | species | 5 | 0 |
| brazil | | xiphinema brevicolle | species | 1 | 0 |
| brazil | | xiphinema brevicollum | species | 4 | 0 |
| brazil | | xiphinema diffusum | species | 3 | 0 |
| brazil | | xiphinema krugi | species | 11 | 0 |
| brazil | | xiphinema longicaudatum | species | 1 | 0 |
| brazil | | xiphinema peruvianum | species | 1 | 0 |
| brazil | | xiphinema santos | species | 2 | 0 |
| brazil | | xiphinema setariae | species | 1 | 0 |
| brazil | | xiphinema surinamense | species | 1 | 0 |
| brazil | | xiphinema variegatum | species | 1 | 0 |
| brazil | para | xiphinema brasiliense | species | 1 | 0 |
| brazil | sao paulo | xiphinema brasiliense | species | 3 | 0 |
| brazil | sao paulo | xiphinema brevicolle | species | 6 | 0 |
| bulgaria | vidin province | xiphinema parasimile | species | 3 | 0 |
| canada | | xiphinema bricolensis | species | 1 | 0 |
| china | | xiphinema brasiliense | species | 2 | 0 |
| china | | xiphinema brevicolle | species | 29 | 0 |
| china | | xiphinema brevicollum | species | 9 | 0 |
| china | | xiphinema diffusum | species | 2 | 0 |
| china | | xiphinema elongatum | species | 5 | 0 |
| china | | xiphinema hunaniense | species | 17 | 0 |
| china | | xiphinema incognitum | species | 4 | 0 |
| china | | xiphinema insigne | species | 15 | 0 |
| china | beijing | xiphinema brevicollum | species | 1 | 0 |
| china | zhejiang | xiphinema insigne | species | 1 | 0 |
| costa rica | alajuela province | xiphinema krugi | species | 2 | 0 |
| costa rica | alajuela province | xiphinema tica | species | 13 | 0 |
| costa rica | cartago province | xiphinema costaricense | species | 24 | 0 |
| costa rica | guanacaste province | xiphinema tica | species | 5 | 0 |
| costa rica | limon province | xiphinema costaricense | species | 1 | 0 |
| costa rica | limon province | xiphinema setariae | species | 1 | 0 |
| costa rica | san jose province | xiphinema tica | species | 66 | 0 |
| croatia | zagreb county | xiphinema rivesi | species | 2 | 0 |
| cuba | | xiphinema basiri | species | 2 | 0 |
| cyprus | | xiphinema index | species | 4 | 0 |
| cyprus | | xiphinema pyrenaicum | species | 1 | 0 |
| czech republic | | xiphinema browni | species | 5 | 0 |
| czech republic | | xiphinema diversicaudatum | species | 11 | 0 |
| czech republic | | xiphinema pachtaicum | species | 1 | 0 |
| czech republic | | xiphinema simile | species | 12 | 0 |
| czech republic | | xiphinema vuittenezi | species | 4 | 0 |
| egypt | ismailia governorate | xiphinema index | species | 4 | 0 |
| ethiopia | | xiphinema citricolum | species | 1 | 0 |
| ethiopia | | xiphinema elongatum | species | 1 | 0 |
| ethiopia | | xiphinema pachtaicum | species | 1 | 0 |
| france | alsace region | xiphinema index | species | 5 | 0 |
| france | aquitaine region | xiphinema diversicaudatum | species | 1 | 0 |
| france | limousin region | xiphinema diversicaudatum | species | 1 | 0 |
| france | provence-alpes-cote d'azur region | xiphinema index | species | 9 | 0 |
| greece | | xiphinema index | species | 1 | 0 |
| greece | | xiphinema italiae | species | 1 | 0 |
| greece | | xiphinema pachtaicum | species | 1 | 0 |
| greece | crete region | xiphinema herakliense | species | 13 | 0 |
| greece | crete region | xiphinema index | species | 12 | 1 |
| hungary | | xiphinema vuittenezi | species | 1 | 0 |
| iran | | xiphinema aceri | species | 6 | 0 |
| iran | | xiphinema index | species | 7 | 0 |
| iran | | xiphinema iranicum | species | 2 | 0 |
| iran | | xiphinema macedonicum | species | 1 | 0 |
| iran | | xiphinema montenegrinum | species | 1 | 0 |
| iran | | xiphinema pachtaicum | species | 4 | 0 |
| iran | | xiphinema simile | species | 2 | 0 |
| iran | | xiphinema vuittenezi | species | 5 | 0 |
| israel | | xiphinema elongatum | species | 1 | 0 |
| italy | | xiphinema italiae | species | 1 | 0 |
| italy | | xiphinema pachtaicum | species | 8 | 0 |
| italy | | xiphinema rivesi | species | 4 | 0 |
| italy | | xiphinema taylori | species | 1 | 0 |
| italy | apulia region | xiphinema barense | species | 6 | 0 |
| italy | apulia region | xiphinema index | species | 12 | 0 |
| italy | apulia region | xiphinema italiae | species | 1 | 0 |
| italy | campania region | xiphinema diversicaudatum | species | 1 | 0 |
| italy | sardinia autonomous region | xiphinema index | species | 5 | 0 |
| italy | sardinia autonomous region | xiphinema pachtaicum | species | 0 | 1 |
| italy | sicily autonomous region | xiphinema index | species | 1 | 0 |
| italy | sicily autonomous region | xiphinema parabrevicolle | species | 4 | 0 |
| japan | | xiphinema americanum group sp. lz-2011 | species | 2 | 0 |
| japan | | xiphinema bakeri | species | 3 | 0 |
| japan | | xiphinema brevicollum | species | 3 | 0 |
| japan | chiba prefecture | xiphinema brevicolle | species | 12 | 0 |
| japan | chiba prefecture | xiphinema sp. jpn-hs-09 | species | 4 | 0 |
| japan | ibaraki prefecture | xiphinema sp. mk-2017 | species | 2 | 0 |
| japan | miyazaki prefecture | xiphinema insigne | species | 1 | 0 |
| japan | shizuoka prefecture | xiphinema sp. mhb1 | species | 1 | 0 |
| japan | shizuoka prefecture | xiphinema sp. mhb14 | species | 1 | 0 |
| japan | shizuoka prefecture | xiphinema sp. mhb16 | species | 1 | 0 |
| japan | shizuoka prefecture | xiphinema sp. mhb2 | species | 1 | 0 |
| japan | shizuoka prefecture | xiphinema sp. mhb3 | species | 1 | 0 |
| japan | shizuoka prefecture | xiphinema sp. mht24 | species | 1 | 0 |
| japan | shizuoka prefecture | xiphinema sp. mht41 | species | 1 | 0 |
| japan | shizuoka prefecture | xiphinema sp. mht44 | species | 1 | 0 |
| lebanon | | xiphinema index | species | 2 | 0 |
| moldova | | xiphinema pachtaicum | species | 1 | 0 |
| moldova | | xiphinema simile | species | 1 | 0 |
| morocco | | xiphinema americanum | species | 3 | 0 |
| morocco | | xiphinema diversicaudatum | species | 3 | 0 |
| morocco | | xiphinema pachtaicum | species | 4 | 0 |
| morocco | | xiphinema penevi | species | 3 | 0 |
| nepal | | xiphinema cf. americanum rn-2005 | species | 2 | 0 |
| nigeria | | xiphinema ifacolum | species | 4 | 0 |
| portugal | | xiphinema abrantinum | species | 1 | 0 |
| portugal | | xiphinema brevisicum | species | 1 | 0 |
| portugal | | xiphinema cf. americanum rn-2005 | species | 2 | 0 |
| portugal | | xiphinema pachtaicum | species | 1 | 0 |
| portugal | | xiphinema pachydermum | species | 1 | 0 |
| portugal | | xiphinema santos | species | 1 | 0 |
| portugal | | xiphinema sp. yh-2004 | species | 1 | 0 |
| portugal | acores autonomous region | xiphinema sp. sas-2014 | species | 1 | 0 |
| portugal | braga district | xiphinema diversicaudatum | species | 357 | 0 |
| portugal | leiria district | xiphinema index | species | 8 | 0 |
| portugal | madeira autonomous region | xiphinema index | species | 1 | 0 |
| russia | | xiphinema brevicolle | species | 3 | 0 |
| russia | | xiphinema ingens | species | 4 | 0 |
| russia | | xiphinema pachtaicum | species | 2 | 0 |
| russia | | xiphinema simile | species | 4 | 0 |
| russia | | xiphinema sp. 3 sas-2016 | species | 2 | 0 |
| russia | adygea republic | xiphinema diversicaudatum | species | 1 | 0 |
| russia | saratov oblast | xiphinema diversicaudatum | species | 4 | 0 |
| russia | voronezh oblast | xiphinema diversicaudatum | species | 1 | 0 |
| senegal | dakar region | xiphinema savanicola | species | 1 | 0 |
| slovakia | | xiphinema browni | species | 5 | 0 |
| slovakia | | xiphinema dentatum | species | 1 | 0 |
| slovakia | | xiphinema diversicaudatum | species | 3 | 0 |
| slovakia | | xiphinema italiae | species | 4 | 0 |
| slovakia | | xiphinema pachtaicum | species | 2 | 0 |
| slovakia | | xiphinema simile | species | 2 | 0 |
| slovakia | | xiphinema taylori | species | 5 | 0 |
| south africa | | xiphinema americanum | species | 4 | 0 |
| south africa | | xiphinema brevicollum | species | 2 | 0 |
| south africa | | xiphinema diffusum | species | 1 | 0 |
| south africa | | xiphinema oxycaudatum | species | 4 | 0 |
| south korea | | xiphinema brevicollum | species | 4 | 0 |
| south korea | | xiphinema diffusum | species | 3 | 0 |
| south korea | | xiphinema insigne | species | 1 | 0 |
| south korea | | xiphinema sp. d30-1 | species | 2 | 0 |
| spain | | xiphinema adenohystherum | species | 3 | 0 |
| spain | | xiphinema duriense | species | 1 | 0 |
| spain | | xiphinema hispanum | species | 15 | 0 |
| spain | andalusia | xiphinema adenohystherum | species | 4 | 0 |
| spain | andalusia | xiphinema astaregiense | species | 3 | 0 |
| spain | andalusia | xiphinema baetica | species | 1 | 0 |
| spain | andalusia | xiphinema cohni | species | 2 | 0 |
| spain | andalusia | xiphinema hispanum | species | 5 | 0 |
| spain | andalusia | xiphinema hispidum | species | 5 | 0 |
| spain | andalusia | xiphinema incertum | species | 3 | 0 |
| spain | andalusia | xiphinema index | species | 31 | 0 |
| spain | andalusia | xiphinema italiae | species | 5 | 0 |
| spain | andalusia | xiphinema lupini | species | 5 | 0 |
| spain | andalusia | xiphinema nuragicum | species | 481 | 0 |
| spain | andalusia | xiphinema pachtaicum | species | 18 | 0 |
| spain | andalusia | xiphinema rivesi | species | 15 | 0 |
| spain | andalusia | xiphinema santos | species | 6 | 0 |
| spain | andalusia | xiphinema sp. j94 | species | 191 | 0 |
| spain | andalusia | xiphinema sphaerocephalum | species | 33 | 0 |
| spain | andalusia | xiphinema turcicum | species | 3 | 0 |
| spain | andalusia | xiphinema turdetanense | species | 1 | 0 |
| spain | galicia | xiphinema abrantinum | species | 2 | 0 |
| spain | galicia | xiphinema brevisicum | species | 1 | 0 |
| spain | galicia | xiphinema coxi europaeum | subspecies | 1 | 0 |
| spain | galicia | xiphinema madeirense | species | 2 | 0 |
| spain | galicia | xiphinema pachtaicum | species | 2 | 0 |
| spain | galicia | xiphinema pseudocoxi | species | 1 | 0 |
| spain | galicia | xiphinema rivesi | species | 1 | 0 |
| spain | galicia | xiphinema santos | species | 1 | 0 |
| spain | galicia | xiphinema turdetanense | species | 2 | 0 |
| spain | murcia | xiphinema index | species | 2 | 0 |
| sri lanka | | xiphinema ifacolum | species | 5 | 0 |
| taiwan | | xiphinema brevicollum | species | 1 | 0 |
| taiwan | | xiphinema elongatum | species | 3 | 0 |
| taiwan | | xiphinema hunaniense | species | 2 | 0 |
| taiwan | | xiphinema insigne | species | 2 | 0 |
| taiwan | taiwan municipality | xiphinema insigne | species | 2 | 0 |
| thailand | | xiphinema hunaniense | species | 2 | 0 |
| tunisia | | xiphinema conurum | species | 5 | 0 |
| tunisia | | xiphinema index | species | 5 | 0 |
| tunisia | | xiphinema italiae | species | 10 | 0 |
| tunisia | | xiphinema meridianum | species | 5 | 0 |
| tunisia | | xiphinema pachtaicum | species | 4 | 0 |
| tunisia | | xiphinema robbinsi | species | 5 | 0 |
| tunisia | | xiphinema sp. p11-2016 | species | 5 | 0 |
| tunisia | bizerte governorate | xiphinema pachtaicum | species | 1 | 0 |
| turkey | manisa province | xiphinema index | species | 12 | 0 |
| united kingdom | | xiphinema americanum | species | 1 | 0 |
| united kingdom | | xiphinema index | species | 2 | 0 |
| united states | | xiphinema americanum | species | 2 | 0 |
| united states | alabama | xiphinema americanum | species | 1 | 0 |
| united states | alabama | xiphinema chambersi | species | 1 | 0 |
| united states | alaska | xiphinema chambersi | species | 1 | 0 |
| united states | arizona | xiphinema californicum | species | 1 | 0 |
| united states | arkansas | xiphinema americanum | species | 23 | 0 |
| united states | arkansas | xiphinema chambersi | species | 1 | 0 |
| united states | arkansas | xiphinema rivesi | species | 2 | 0 |
| united states | california | xiphinema americanum | species | 29 | 0 |
| united states | california | xiphinema bakeri | species | 5 | 0 |
| united states | california | xiphinema californicum | species | 34 | 0 |
| united states | california | xiphinema insigne | species | 2 | 0 |
| united states | california | xiphinema pachtaicum | species | 8 | 0 |
| united states | california | xiphinema rivesi | species | 5 | 0 |
| united states | california | xiphinema sp. 1 sas-2016 | species | 39 | 0 |
| united states | california | xiphinema sp. 2 sas-2016 | species | 2 | 0 |
| united states | california | xiphinema sp. 5 sas-2016 | species | 1 | 0 |
| united states | colorado | xiphinema americanum | species | 32 | 0 |
| united states | colorado | xiphinema thornei | species | 1 | 0 |
| united states | colorado | xiphinema utahense | species | 1 | 0 |
| united states | florida | xiphinema cf. americanum rn-2005 | species | 4 | 0 |
| united states | florida | xiphinema citricolum | species | 2 | 0 |
| united states | florida | xiphinema floridae | species | 2 | 0 |
| united states | florida | xiphinema georgianum | species | 2 | 0 |
| united states | florida | xiphinema peruvianum | species | 1 | 0 |
| united states | florida | xiphinema setariae | species | 3 | 0 |
| united states | florida | xiphinema tarjanense | species | 1 | 0 |
| united states | georgia | xiphinema americanum | species | 5 | 0 |
| united states | georgia | xiphinema chambersi | species | 23 | 0 |
| united states | georgia | xiphinema coxi | species | 1 | 0 |
| united states | georgia | xiphinema georgianum | species | 1 | 0 |
| united states | georgia | xiphinema pacificum | species | 1 | 0 |
| united states | georgia | xiphinema peruvianum | species | 1 | 0 |
| united states | hawaii | xiphinema sp. 4 sas-2016 | species | 2 | 0 |
| united states | kansas | xiphinema sp. 1 sas-2016 | species | 1 | 0 |
| united states | maryland | xiphinema rivesi | species | 5 | 0 |
| united states | minnesota | xiphinema rivesi | species | 4 | 0 |
| united states | new york | xiphinema americanum | species | 11 | 0 |
| united states | north carolina | xiphinema americanum | species | 17 | 0 |
| united states | north carolina | xiphinema chambersi | species | 2 | 0 |
| united states | ohio | xiphinema americanum | species | 12 | 0 |
| united states | ohio | xiphinema rivesi | species | 1 | 0 |
| united states | oregon | xiphinema americanum | species | 38 | 0 |
| united states | oregon | xiphinema thornei | species | 1 | 0 |
| united states | pennsylvania | xiphinema americanum | species | 21 | 0 |
| united states | pennsylvania | xiphinema bricolensis | species | 1 | 0 |
| united states | pennsylvania | xiphinema incognitum | species | 1 | 0 |
| united states | pennsylvania | xiphinema rivesi | species | 4 | 0 |
| united states | south carolina | xiphinema americanum | species | 2 | 0 |
| united states | south carolina | xiphinema rivesi | species | 1 | 0 |
| united states | texas | xiphinema americanum | species | 2 | 0 |
| united states | washington | xiphinema americanum | species | 57 | 0 |
| united states | washington | xiphinema bakeri | species | 2 | 0 |
| united states | washington | xiphinema rivesi | species | 3 | 0 |
| vietnam | | xiphinema hunaniense | species | 2 | 0 |
| vietnam | | xiphinema radicicola | species | 1 | 0 |
| vietnam | | xiphinema rivesi | species | 1 | 0 |