| brazil | | belostoma angustum | species | 2 | 0 |
| brazil | | belostoma cummingsi | species | 2 | 0 |
| brazil | | belostoma elongatum | species | 1 | 0 |
| brazil | | belostoma micantulum | species | 7 | 0 |
| brazil | | belostoma plebejum | species | 5 | 0 |
| brazil | | belostoma ribeiroi | species | 4 | 0 |
| brazil | | horvathinia pelocoroides | species | 3 | 0 |
| brazil | | lethocerus annulipes | species | 5 | 0 |
| brazil | | lethocerus delpontei | species | 3 | 0 |
| brazil | rio grande do sul | belostoma angustum | species | 20 | 0 |
| brazil | rio grande do sul | belostoma cummingsi | species | 1 | 0 |
| brazil | sao paulo | belostomatidae sp. mv-2017 | species | 2 | 0 |
| cambodia | | lethocerus indicus | species | 1 | 0 |
| cameroon | | hydrocyrius colombiae | species | 4 | 0 |
| cameroon | | limnogeton expansum | species | 5 | 0 |
| canada | alberta | lethocerus americanus | species | 2 | 0 |
| canada | british columbia | lethocerus americanus | species | 1 | 0 |
| canada | manitoba | lethocerus americanus | species | 1 | 0 |
| canada | ontario | belostoma flumineum | species | 13 | 0 |
| canada | ontario | belostomatidae sp. tthfw029-08 | species | 1 | 0 |
| canada | ontario | lethocerus sp. bold:aaf7265 | species | 1 | 0 |
| canada | ontario | lethocerus uhleri | species | 1 | 0 |
| canada | quebec | lethocerus uhleri | species | 1 | 0 |
| china | zhejiang | appasus japonicus | species | 8 | 0 |
| french guiana | | weberiella rhomboides | species | 1 | 0 |
| india | | diplonychus rusticus | species | 4 | 0 |
| india | | lethocerus indicus | species | 3 | 0 |
| india | puducherry | diplonychus indicus | species | 0 | 1 |
| japan | | appasus japonicus | species | 2 | 0 |
| japan | | appasus major | species | 4 | 0 |
| japan | | kirkaldyia deyrolli | species | 5 | 0 |
| japan | | lethocerus deyrollei | species | 2 | 0 |
| japan | aichi prefecture | appasus japonicus | species | 10 | 0 |
| japan | aichi prefecture | appasus major | species | 2 | 0 |
| japan | akita prefecture | appasus major | species | 18 | 0 |
| japan | aomori prefecture | appasus japonicus | species | 23 | 0 |
| japan | aomori prefecture | appasus major | species | 16 | 0 |
| japan | chiba prefecture | appasus japonicus | species | 4 | 0 |
| japan | chiba prefecture | appasus major | species | 10 | 0 |
| japan | ehime prefecture | appasus japonicus | species | 4 | 0 |
| japan | fukushima prefecture | appasus japonicus | species | 2 | 0 |
| japan | fukushima prefecture | appasus major | species | 20 | 0 |
| japan | hiroshima prefecture | appasus japonicus | species | 41 | 0 |
| japan | hiroshima prefecture | appasus major | species | 4 | 0 |
| japan | hokkaido prefecture | appasus japonicus | species | 26 | 0 |
| japan | hokkaido prefecture | appasus major | species | 12 | 0 |
| japan | hyogo prefecture | appasus japonicus | species | 12 | 0 |
| japan | hyogo prefecture | appasus major | species | 4 | 0 |
| japan | ibaraki prefecture | appasus japonicus | species | 4 | 0 |
| japan | ibaraki prefecture | appasus major | species | 4 | 0 |
| japan | iwate prefecture | appasus japonicus | species | 2 | 0 |
| japan | iwate prefecture | appasus major | species | 6 | 0 |
| japan | kagawa prefecture | appasus japonicus | species | 6 | 0 |
| japan | kagoshima prefecture | appasus japonicus | species | 24 | 0 |
| japan | kanagawa prefecture | appasus japonicus | species | 2 | 0 |
| japan | kanagawa prefecture | appasus major | species | 6 | 0 |
| japan | kumamoto prefecture | appasus japonicus | species | 4 | 0 |
| japan | kumamoto prefecture | kirkaldyia deyrolli | species | 1 | 0 |
| japan | kyoto prefecture | appasus japonicus | species | 9 | 0 |
| japan | mie prefecture | appasus major | species | 10 | 0 |
| japan | miyagi ken prefecture | appasus major | species | 2 | 0 |
| japan | miyazaki prefecture | appasus japonicus | species | 4 | 0 |
| japan | nagano prefecture | appasus japonicus | species | 594 | 0 |
| japan | nagasaki prefecture | appasus japonicus | species | 8 | 0 |
| japan | nara prefecture | appasus major | species | 2 | 0 |
| japan | niigata prefecture | appasus major | species | 8 | 0 |
| japan | oita prefecture | appasus japonicus | species | 8 | 0 |
| japan | okayama prefecture | appasus japonicus | species | 2 | 0 |
| japan | okayama prefecture | appasus major | species | 2 | 0 |
| japan | osaka prefecture | appasus japonicus | species | 2 | 0 |
| japan | saga prefecture | appasus japonicus | species | 7 | 0 |
| japan | shimane prefecture | appasus japonicus | species | 24 | 0 |
| japan | shimane prefecture | kirkaldyia deyrolli | species | 8 | 0 |
| japan | shizuoka prefecture | appasus japonicus | species | 32 | 0 |
| japan | tochigi prefecture | appasus japonicus | species | 26 | 0 |
| japan | tokushima prefecture | appasus major | species | 2 | 0 |
| japan | tottori prefecture | appasus japonicus | species | 26 | 0 |
| japan | wakayama prefecture | appasus japonicus | species | 20 | 0 |
| japan | yamagata prefecture | appasus major | species | 12 | 0 |
| japan | yamaguchi prefecture | appasus japonicus | species | 87 | 0 |
| japan | yamanashi prefecture | appasus japonicus | species | 2 | 0 |
| mexico | | abedus indentatus | species | 3 | 0 |
| mexico | | abedus signoreti | species | 6 | 0 |
| myanmar | tanintharyi division | diplonychus sp. usnm ent 01117504 | species | 1 | 0 |
| panama | colon province | belostomatidae sp. fr018 | species | 1 | 0 |
| panama | colon province | belostomatidae sp. rc2-014 | species | 1 | 0 |
| panama | colon province | belostomatidae sp. rc2-016 | species | 1 | 0 |
| republic of the congo | | diplonychus aff. rusticus jrr-2017 | species | 3 | 0 |
| south korea | | muljarus japonicus | species | 1 | 0 |
| south korea | gangwon province | appasus japonicus | species | 20 | 0 |
| south korea | gyeonggi province | appasus japonicus | species | 4 | 0 |
| south korea | jeju province | diplonychus esakii | species | 7 | 0 |
| south korea | jeju province | kirkaldyia deyrolli | species | 54 | 0 |
| south korea | jeju province | lethocerus deyrollei | species | 10 | 0 |
| thailand | | diplonychus rusticus | species | 1 | 0 |
| thailand | | lethocerus indicus | species | 28 | 0 |
| thailand | chiang mai province | lethocerus indicus | species | 11 | 0 |
| thailand | chiang rai province | lethocerus indicus | species | 10 | 0 |
| thailand | kalasin province | lethocerus indicus | species | 11 | 0 |
| thailand | kanchanaburi province | lethocerus indicus | species | 20 | 0 |
| thailand | lamphun province | lethocerus indicus | species | 9 | 0 |
| thailand | nakhon ratchasima province | diplonychus rusticus | species | 10 | 0 |
| thailand | nakhon ratchasima province | lethocerus indicus | species | 11 | 0 |
| thailand | nakhon sawan province | lethocerus indicus | species | 10 | 0 |
| thailand | nan province | lethocerus indicus | species | 7 | 0 |
| thailand | ratchaburi province | diplonychus rusticus | species | 3 | 0 |
| thailand | surat thani province | diplonychus rusticus | species | 9 | 0 |
| thailand | surat thani province | lethocerus indicus | species | 2 | 0 |
| thailand | surin province | lethocerus indicus | species | 10 | 0 |
| thailand | tak province | diplonychus rusticus | species | 8 | 0 |
| thailand | tak province | lethocerus indicus | species | 10 | 0 |
| thailand | ubon ratchathani province | diplonychus rusticus | species | 7 | 0 |
| thailand | ubon ratchathani province | lethocerus indicus | species | 10 | 0 |
| united states | | belostoma flumineum | species | 5 | 0 |
| united states | alaska | lethocerus americanus | species | 2 | 0 |
| united states | florida | belostoma flumineum | species | 2 | 0 |
| vietnam | | diplonychus esakii | species | 8 | 0 |
| vietnam | | hydrocyrius sp. jrr-2017 | species | 2 | 0 |
| vietnam | tay ninh province | diplonychus rusticus | species | 2 | 0 |