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Loricera (Loricera) rotundicollis Chaudoir 1863

Comprehensive Description

provided by Smithsonian Contributions to Zoology
Loricera rotundicollis Chaudoir

Loricera rotundicollis Chaudoir, 1863:115. [Lectotype female, MEXICO, Oaxaca, Capulapam, (Sallé) (MNHP), herein selected.]

DIAGNOSTIC COMBINATION.—Antennomeres 2–6 with markedly large setae; antennomeres 2–4 irregular in shape; elytron with 12 regular striate interneurs. Color and luster: mostly black, shining iridescent except head, with rufous or rufopiceous labrum, antennal articles 2, 4-11, mouthparts except palpi, coxae, trochanters, and tibiae; tarsal articles rufoflavous; palpi flavous, antennal articles 1 and 3 piceous. Form: size medium, head round with constricted neck, eyes small but prominent, body flat. Structure: dorsal microsculp ture of small, well-impressed transverse meshes. Male median lobe (Figure 5). Female styli small and spatulate with single ventral setae; coxite densely setiferous. ABL = 7.5 to 8.2 mm; TW = 2.9 to 3.4.

GEOGRAPHICAL DISTRIBUTION (Figure 6).—The one species is widespread in Mexico from the southern portion of the Sierra Madre Oriental south through Chiapas; in Central America, it currently is known only from the northwest portion of Guatemala, at middle to high elevation.

NATURAL HISTORY.—In Mexico, Loricera rotundicollis is generally found in oak and pine forests above 6000 feet in montane moist forest, sometimes as high as 11,000 feet. I expect that this will also be true for the northern parts of Guatemala, although this species is now known from only a few scattered localities there. The larvae are probably specialized predators and can be found under large stones where they also pupate (see Ball and Erwin, 1969, for descriptions of immature stages). All specimens seen by me from Guatemala are brachypterous, with the flight wing developed only to the stigma. Ball and Erwin (1969) point out that of 131 specimens seen by them, 119 were brachypterous and that fully winged individuals were found only in large population samples. I have no large samples from Guatemala at present, but expect winged individuals to be found there.

MATERIAL EXAMINED.—Type (see above) and 6 specimens (Table 2).
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bibliographic citation
Erwin, Terry L. 1991. "The ground beetles of Central America (Carabidae) I: Carabinae (in part): Notiophilini, Loricerini, Carabini." Smithsonian Contributions to Zoology. 1-30. https://doi.org/10.5479/si.00810282.501