Descriptions and illustrations of the fifth instar and prepupal larval stages of Stethon pectorosus LeConte, 1866 (Coleoptera: Eucnemidae: Eucneminae: Mesogenini) are provided. These are the first larval descriptions for the genus Stethon LeConte within the subfamily Eucneminae in the Nearctic region. Biological information is provided and comparison with larval morphology of other Eucnemidae is briefl y discussed
Figs. 2–5. Onichodon canadensis, fifth instar. 2) Head, dorsal view; 3) Head and thoracic region, do...
Figures 26–29. Microrhagus audax, fifth instar. 26) Head, dorsal view. 27) Head and thoracic region,...
Figures 39–42. Microrhagus breviangularis, fifth instar. 39) Head, dorsal view of paratype. 40) Head...
Descriptions and illustrations of the fi fth instar and prepupal larval stages of Stethon pectorosus...
Otto, Robert L., Gruber, Jeffrey P. (2016): Eucnemid larvae of the Nearctic region. Part VI: Descrip...
Descriptions and illustrations of the triungulin, 5th instar, and prepupal larval forms for Nematode...
Descriptions and illustrations of the fifth instar and prepupal larval stages of Stethon pectorosus ...
Otto, Robert L. (2017): Eucnemid larvae of the Nearctic Region. Part VII: Description of the larvae ...
Otto, Robert L. (2015): Eucnemid larvae of the Nearctic region. Part V: Fifth instar larval descript...
Fig. 1. Onichodon canadensis, fifth instar, dorsal habitus.Published as part of Otto, Robert L., 201...
Fig. 11. Onichodon rugicollis, fifth instar, dorsal habitus.Published as part of Otto, Robert L., 20...
Fifth instars for eight of the nine species of Microrhagus Dejean (Coleoptera: Eucnemidae: Melasinae...
Figures 62–65. Microrhagus lecontei, fifth instar. 62) Head, dorsal view of paratype. 63) Head and t...
Figs. 7–10. Onichodon orchesides, fifth instar. 7) Head, dorsal view; 8) Head and thoracic region, d...
Figs. 12–15. Onichodon rugicollis, fifth instar. 12) Head, dorsal view; 13) Head and thoracic region...
Figs. 2–5. Onichodon canadensis, fifth instar. 2) Head, dorsal view; 3) Head and thoracic region, do...
Figures 26–29. Microrhagus audax, fifth instar. 26) Head, dorsal view. 27) Head and thoracic region,...
Figures 39–42. Microrhagus breviangularis, fifth instar. 39) Head, dorsal view of paratype. 40) Head...
Descriptions and illustrations of the fi fth instar and prepupal larval stages of Stethon pectorosus...
Otto, Robert L., Gruber, Jeffrey P. (2016): Eucnemid larvae of the Nearctic region. Part VI: Descrip...
Descriptions and illustrations of the triungulin, 5th instar, and prepupal larval forms for Nematode...
Descriptions and illustrations of the fifth instar and prepupal larval stages of Stethon pectorosus ...
Otto, Robert L. (2017): Eucnemid larvae of the Nearctic Region. Part VII: Description of the larvae ...
Otto, Robert L. (2015): Eucnemid larvae of the Nearctic region. Part V: Fifth instar larval descript...
Fig. 1. Onichodon canadensis, fifth instar, dorsal habitus.Published as part of Otto, Robert L., 201...
Fig. 11. Onichodon rugicollis, fifth instar, dorsal habitus.Published as part of Otto, Robert L., 20...
Fifth instars for eight of the nine species of Microrhagus Dejean (Coleoptera: Eucnemidae: Melasinae...
Figures 62–65. Microrhagus lecontei, fifth instar. 62) Head, dorsal view of paratype. 63) Head and t...
Figs. 7–10. Onichodon orchesides, fifth instar. 7) Head, dorsal view; 8) Head and thoracic region, d...
Figs. 12–15. Onichodon rugicollis, fifth instar. 12) Head, dorsal view; 13) Head and thoracic region...
Figs. 2–5. Onichodon canadensis, fifth instar. 2) Head, dorsal view; 3) Head and thoracic region, do...
Figures 26–29. Microrhagus audax, fifth instar. 26) Head, dorsal view. 27) Head and thoracic region,...
Figures 39–42. Microrhagus breviangularis, fifth instar. 39) Head, dorsal view of paratype. 40) Head...