FIGURES 



Page 



1-2 Adult elmid beetle: external features 8 



3-7 Adult elmid beetle: lateral and sectional views; mouthparts 8 

 8-11 Adult elmid beetle: digestive, nervous, and reproductive systems9 



12-15 Elmid larva: external features, mouthparts 10 



16 Chelonarium leaontei adult 25 



17-18 Phanoaerus olavioomis, Lara avara adult 26 



19-21 Lara gehringi, L. avara avara^ L. a. amplipennis adult 27 



22-23 Maaronychus glabratus, Ancyronyx variegata adult 27 



24-25 Zaitzevia parvula, Ordobrevia nubifera adult 28 



26 Stenelmis crenata adult 29 



27-35 Tarsus, aedeagus of Stenelmis species 29 



36-41 Aedeagus of Stenelmis species 31 



42-48 Aedeagus of Stenelmis species 32 



49-54 Aedeagus of Stenelmis species 33 



55-56 Rhizelmis nigra adult 34 



57 Cleptelmis omata adult 35 



58-59 Atractelmis wawona adult 36 



60-61 Ampumixis dispar, Narpus oonaolor adult 36 



62-63 Dubiraphia quadrinotata^ Elsianus texanus adult 37 



64-65 Neoaylloepus boeseli^ Neoelmis oaesa adult 38 



66-67 Hexaoylloepus ferrugineuSj Eeterelmis vulnerata adult 39 



68-69 Cylloepus parkeri adult 40 



70-71 Microaylloepus pusillus, Oulimnius latiusaulus adult 41 



72-73 Gonielmis dietriohi, Promoresia elegans adult 42 



74-75 Heterlimnius aorpulentus, Optioservus ovalis adult 43 

 76-82 Adult pronotum and elytron of Heterlimnius ^ Optioservus species 44 



83-89 Adult pronotum and elytron of Optioservus species 45 



90-91 Dryops arizonensis, Pelonomus obscurus adult 46 



92 Heliahus lithophilus adult 47 



93-98 Heliahus confluentuSi H. irmsi genitalia 47 



99-104 Heliahus produatus, H. lithophilus genitalia 48 



105-114 Aedeagus of Heliahus species 49 



115-116 Throsainus sahwartzi, Limniahus sp. adult 50 



117-118 Lutrochus luteuSy Aaneus quadrimaaulatus adult 52 



119-120 Eatopria nervosa, Diaranopselaphus sp. adult 52 



121-122 Eubrianax edwardsi, Psephenus texanus adult 53 



123-128 Aedeagus of Psephenus species 53 

 129-131 Anahyateis velutina, Anahytarsus substriatus, Stenoaolus 



sautellaris adult 54 



132-133 Larvae of Chelonarium sp., Dryops sp. 55 



134-135 Larvae of Anahytarsus biaolor , Stenoaolus sautellaris? 56 



136-138 Larva of Lutroahus luteus 57 



139-142 Larvae of Lara avara, Phanoaerus alaviaomis 58 



143-146 Larvae of Dubiraphia sp., Narpus aonaolor 59 



147-150 Larvae of Cylloepus sp., C. montanus, Rhizelmis nigra 59 



151-155 Larvae of Anayronyx variegata, Eeterelmis vulnerata 60 



156-160 Larvae of Miaroaylloepus pusillus, Neoelmis sp. 61 



Vlll 



