| Crossocerus hirtitibia Arnold, 1944 | Purple gay-mallow |
| Crossocerus micromegas Saussure, 1892 | Moundscale |
| Crossocerus sociabilis (Arnold, 1932) | ⇒ Pericrabro sociabilis Arnold, 1932 |
| Daspyroctus saevus de Saussure, 1892 | |
| Dasyproctus crudelis de Saussure, 1892 | Moundscale |
| Dasyproctus ferox de Saussure, 1892 | Moundscale |
| Dasyproctus lambertoni Leclercq, 1958 | |
| Dasyproctus saussurei Kohl, 1894 | |
| Ectemnius praeclarus Arnold, 1945 | Purple gay-mallow |
| Ectemnius seyrigi Arnold, 1945 | Purple gay-mallow |
| Ectemnius walteri Kohl, 1899 | |
| Entomognathus arnoldi Bohart & Menke, 1976 | |
| Entomognathus diversicornis Arnold, 1944 | Purple gay-mallow |
| Entomognathus faunus Arnold, 1944 | Purple gay-mallow |
| Entomognathus midus Arnold, 1944 | |
| Entomognathus mimicus Arnold, 1944 | Purple gay-mallow |
| Entomognathus ruficaudatus Arnold, 1944 | Purple gay-mallow |
| Gastrosericus madecassus Kohl, 1907 | |
| Gastrosericus zoyphion Pulawski, 1995 | |
| Holotachysphex sacalava Arnold, 1945 | Purple gay-mallow |
| Larra betsilea de Saussure, 1887 | Hoary orache |
| Larra heydenii de Saussure, 1890 | |
| Larra madecassa de Saussure, 1887 | Mueller's saltbush |
| Larra outeniqua Arnold, 1923 | |
| Larra saussurei Kohl, 1887 | |
| Larra variipes de Saussure, 1892 | |
| Liris alaris de Saussure, 1892 | Moundscale |
| Liris antaka de Saussure, 1890 | |
| Liris avellanipes de Saussure, 1890 | |
| Liris brunnipennis Arnold, 1945 | California saltmarsh mosquito |
| Liris cowani Kirby, 1883 | |
| Liris crepitans Leclercq, 1967 | Scarlet begonia |
| Liris dejectus Arnold, 1945 | California saltmarsh mosquito |
| Liris dyscheirus de Saussure, 1892 | Moundscale |
| Liris ganahlii Dalla Torre, 1892 | |
| Liris incertus Arnold, 1945 | California saltmarsh mosquito |
| Liris keiseri Leclercq, 1961 | |
| Liris memnonius coloripes Arnold, 1940 | |
| Liris nigricans Walker, 1871 | |
| Liris radialis de Saussure, 1887 | |
| Liris sabrinus Leclercq, 1961 | |
| Liris scabriusculus Arnold, 1945 | California saltmarsh mosquito |
| Liris sepulcharis hova Arnold, 1945 | |
| Liris solstitialis F.Smith, 1856 | |
| Liris utopicus Leclercq, 1961 | |
| Liris voeltzkowii Kohl, 1909 | |
| Liris xanthopterus Arnold, 1945 | California saltmarsh mosquito |
| Lyroda madecassa Arnold, 1945 | California saltmarsh mosquito |
| Miscophus maculipes Arnold, 1945 | California saltmarsh mosquito |
| Miscophus seyrigi Arnold, 1945 | California saltmarsh mosquito |
| Miscophus sordidatus Arnold, 1945 | California saltmarsh mosquito |
| Neodasyproctus densepunctatus Arnold, 1945 | Purple gay-mallow |
| Neodasyproctus eburneopictus Arnold, 1945 | Purple gay-mallow |
| Neodasyproctus ferrierei (Leclercq, 1951) | ⇒ Neodasyproctus densepunctatus Arnold, 1945 |
| Neodasyproctus protensus Arnold, 1945 | Purple gay-mallow |
| Neodasyproctus striolatus Arnold, 1945 | Purple gay-mallow |
| Oxybelus cristatus de Saussure, 1892 | |
| Oxybelus perornatus Arnold, 1945 | California saltmarsh mosquito |
| Oxybelus subcristatus de Saussure, 1892 | |
| Parapiagetia longicornis Arnold, 1945 | California saltmarsh mosquito |
| Parapiagetia longocornis | |
| Parapiagetia pluridentata Arnold, 1945 | California saltmarsh mosquito |
| Pericrabro sociabilis Arnold, 1932 | |
| Pison humile Arnold, 1945 | California saltmarsh mosquito |
| Pison lobiferum Arnold, 1945 | California saltmarsh mosquito |
| Pison mimicum Arnold, 1945 | California saltmarsh mosquito |
| Pison seyrigi Arnold, 1945 | California saltmarsh mosquito |
| Rhopalum ichneumoniforme Arnold, 1927 | |
| Solierella madagascariensis Arnold, 1945 | California saltmarsh mosquito |
| Solierella pallidipes Arnold, 1945 | California saltmarsh mosquito |
| Tachysphex ambositrae Leclercq, 1967 | Scarlet begonia |
| Tachysphex ampijoroa Pulawski, 2007 | Crescent milkvetch |
| Tachysphex anceps Arnold, 1945 | California saltmarsh mosquito |
| Tachysphex bara Pulawski, 2007 | Crescent milkvetch |
| Tachysphex bruneiceps Arnold, 1923 | |
| Tachysphex cavatus Pulawski, 2007 | Crescent milkvetch |
| Tachysphex excelsus R. Turner, 1917 | |
| Tachysphex excisus Arnold, 1945 | California saltmarsh mosquito |
| Tachysphex flavofimbriatus Arnold, 1945 | California saltmarsh mosquito |
| Tachysphex fugax Radoszkowski, 1877 | |
| Tachysphex insulsus Arnold, 1945 | California saltmarsh mosquito |
| Tachysphex perniger Arnold, 1947 | |
| Tachysphex platystethus Pulawski, 2007 | Crescent milkvetch |
| Tachysphex quadricolor Gerstaecker, 1858 | |
| Tachysphex scaurus Arnold, 1945 | California saltmarsh mosquito |
| Tachysphex sexinus Leclercq, 1961 | |
| Tachysphex seyrigi Arnold, 1945 | California saltmarsh mosquito |
| Tachysphex suavis Arnold, 1929 | |
| Tachysphex subcoriaceus Arnold, 1945 | California saltmarsh mosquito |
| Tachysphex subopacus Turner, 1910 | |
| Tachytes argyropis de Saussure, 1887 | Mueller's saltbush |
| Tachytes copiosus Arnold, 1945 | California saltmarsh mosquito |
| Tachytes flavocinereus Arnold, 1945 | California saltmarsh mosquito |
| Tachytes indifferens Arnold, 1945 | California saltmarsh mosquito |
| Tachytes oviventris de Saussure, 1891 | |
| Tachytes picticornis Arnold, 1945 | California saltmarsh mosquito |
| Tachytes rufomarginatus Arnold, 1945 | California saltmarsh mosquito |
| Trypoxylon (Trypoxylon) hova de Saussure, 1892 | |
| Trypoxylon (Trypoxylon) scutifrons de Saussure, 1892 | |
| Trypoxylon (Trypoxylon) sinuosiscute Arnold, 1945 | California saltmarsh mosquito |
| Trypoxylon (Trypoxylon) tuberculifrons Arnold, 1945 | California saltmarsh mosquito |
| Trypoxylon cataractae madecassum Arnold, 1945 | |
| Trypoxylon longiscute Tsuneki, 1978 | |
| Trypoxylon luteosignatum Arnold, 1945 | California saltmarsh mosquito |
| Trypoxylon punctatissimum Arnold, 1924 | |
| Trypoxylon seyrigi Arnold, 1945 | California saltmarsh mosquito |
| Trypoxylon sinuosiscutus | |
