Calosoma (Callitropa) macrum LeConte, 1853

Calosoma macrum LeConte, 1853: 400 (described from: Texas); syntypes in Museum of Comparative Zoology, Harvard University, Cambridge, Ma. (
Calosoma (Callitropa) macrum Breuning, 1928: 117
Callitropa (Paratropa) macra Lapouge, 1932: 385
Callitropa (s. str.) macrum Jeannel, 1940: 213
Calosoma (Callitropa) macrum Gidaspow, 1959: 274
Calosoma (Callitropa) macra Erwin, 2007: 98

Length 24-30 mm. externum, macrum and protractum were collected by Jeannel (1940) in the subgenus Callitropa (s. str.), because of their elongated shape, and because, being winged, their metaepisterna are longer than wide.
Among them macrum is easily recognized because the striae on the elytra are very faintly, almost obliterated, but we find sparse large punctures more spread on their basal part. Its upper body is black with blue reflections.
It is found in south-eastern United States and northern Mexico.

Examined specimens and literature’s data
Mexico. Nuevo Leon: Monterrey (Gidaspow, 1959: 274), Tamaulipas: Nuevo Laredo (Breuning, 1928a: 118)
United States. Arizona: St. Cruz County (, Tumacacori-Carmen (; ; Arkansas (Jeannel, 1940: 214); California: Victoria county (UASM); Illinois: Cairo (EM); Kentucky: Green County (EM); Louisiana (Burgess & Collins, 1917: 25); Nebraska: Lincoln (EM); New Mexico (Erwin, 2007: 98); Oklahoma: Ardmore (EM); Texas: San Antonio (SB), Brazos County (SB), Ellis County (, Victoria county, Travis county, Frio county (UASM); Fredericksburg (, Dallas (UASM).

Notes: Winged, often attracted to light at night. It lives on midland from 1000m to 1600m (Erwin, 2007: 98). Active individuals have been found from May to October, according to data of the examined materials.

Calosoma (Callitropa) macrum
LeConte, 1853
United States, Texas: San Antonio
Calosoma (Callitropa) macrum
LeConte, 1853
United States, Texas: San Antonio

last review April 22 2019