Cryptobatis chontalensis Bates

Erwin, Terry L., 2004, The beetle family Carabidae of Costa Rica: The genera of the Cryptobatida group of subtribe Agrina, tribe Lebiini, with new species and notes on their way of life (Insecta: Coleoptera), Zootaxa 662, pp. 1-54: 20-22

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Cryptobatis chontalensis Bates


Cryptobatis chontalensis Bates 

(Figs. 13, 14, 34)

Cryptobatis chontalensis Bates 1883: 202  . Lectotype male, labeled by me in BMNH (The Natural History Museum, London). Type locality: NICARAGUA, Chontales.

Common name. Nicaraguan cobalt­blue carabid beetle.

Diagnosis. With the attributes of the genus as described above and head, prothorax, venter and base of femur testaceous; elytra metallic blue; antennae, palpi, apex of femur, tibia and tarsi black. Sides of pronotum markedly explanate.

Description. (Fig. 13). Size medium: ABL = 6.58 to 7.91 mm, SBL = 6.25 to 7.75 mm, TW = 3.0 to 4.0 mm. Color: Head, prothorax, venter and base of femur testaceous; elytra metallic blue; antennae, palpi, apex of femur, tibia and tarsi black. Metathorasic wings smoky grey. Luster: Dorsal and ventral surfaces very shiny. Microsculpture: Absent from head and pronotum; of transverse meshes on elytra. Head: Markedly narrower than pronotum across eyes; frontal furrows absent except for small groove at margin of clypeus; frons convex; eyes moderately large, markedly produced; ultimate labial palpomere securiform; antennae of moderate length, reaching just posterior of humerus. Prothorax: Markedly convex, side margin markedly explanate, subangulate at mid­lateral setigerous pore, slightly sinuate anterior to hind angle. Pterothorax: Normal for Agrina, fully winged. Legs: Normal for Agrina. Abdomen: Sterna normal for Agrina, glabrous, except normal ambulatory setae on sterna 3–5 and males with one pair of ambulatory setae on sternum 6, females with two pairs on sternum 6. Male genitalia: Phallus ( Fig. 14 View Figure ) with ostium 1 / 4 its length, catopic, apex moderately long and narrow, endophallus with flagellum, flagellum apex not barbed; left paramere very small, right moderately large.

Way of life. Elsewhere these beetles have been collected on the undersides of bracket fungi on fallen tree trunks and it is likely that the same holds true for Costa Rican populations. Several specimens from the ALAS project were collected in Malaise traps in secondary forest. The known altitudinal range of this species is between 10 and 1400 meters above sea level. Specimens have been obtained in all months except February and October, hence this is a widespread species east of the Cordillera Central in the lowlands through to upper middle altitudes and they are active as adults in both the dry and rainy seasons.

Other specimens examined. COSTA RICA. 1 female, CARTAGO, Turrialba, IICA Experimental Station, CATIEAbout CATIE, 1.6 km N Rio Reventazon, 600 m, 09° 53 ' 0 N, 083° 39 ' 0 W, LN574947,208307, April (E. Giesbert)( CASAbout CAS: ADP 100289), 1 female Reserva Indígena Chirripó, 39 km SE Grano de Oro, 1120 m, 09° 49 ' 06” N 083° 27 ' 32 ” W, LN200250,595900, September (P. Campos)( INBIO: CRIAbout CRI 001618293); 3 females, GUA­ NACASTE, P. N. Guanacaste, Estación Cacao, 1100 m, 10 ° 59 ' 26 ” N, 085° 25 ' 40 ” W, LN323100,375800, July (B. Gamboa)( INBIO: CRIAbout CRI 002187559), SW side, 1000–1400 m LN323300,375700, May (F. Quesada)( INBIO: CRIAbout CRI 000378764), November, December (R. Blanco, C. Chavez)( INBIO: CRIAbout CRI 000144405), 2 females, P.N. Guanacaste, 9 km S Santa Cecilia, Estación Pitilla, 700 m, LN330200,380200, September (GNP Biodiversity Survey)( INBIO: CRIAbout CRI 000035327, CRIAbout CRI 000077953), 1 female, March, April, ( INBIO: CRIAbout CRI 000019479), 1 male, August ( INBIO: CRIAbout CRI 0001024191); 1 female, HEREDIA, 3.0 km S Puerto Viejo, Finca La Selva  , Estación Biologica La Selva  , 50–150 m, 10 ° 25 ' 55 ” N, 084° 00' 32 ” W, LN535500,268000, January (INBio­OET: CRIAbout CRI 002227335), 3 females, April, (INBio­OET: CRIAbout CRI 002227442, CRIAbout CRI 002227310, CRIAbout CRI 002229741), 3 males, 1 female, June, (males, INBio­OET: CRIAbout CRI 002268433, CRIAbout CRI 002227028, female, CRIAbout CRI 002228919, CRIAbout CRI 002228291), 1 female, 1 male, August (female, INBio­OET: CRIAbout CRI 002227316, male, CRIAbout CRI 002229390), November (INBio­OET, CRIAbout CRI 002726727), 1 male, March (H.A. Hespenheide)( INBIO: CRIAbout CRI 002268360), 1 male, 1 female, July (H.A. Hespenheide)(male, UASMAbout UASM: ADP 102316, female, (INBio­OET: CRIAbout CRI 002267718), 1 female, August ( HAHAbout HAH: ADP 102197); 1 female, LIMÓN, Rio Reventazon, Ebene, Hamburg Farm, 10 m, 10 ° 15 ' 0 N, 083° 28 ' 0 W, January (F. Nevermann)( NMNHAbout NMNH: ADP007940), 3 females, 1 male, P. B. Hitoy Cerere, Estación Hitoy Cerere, Valle de la Estrella, 100 m, LN643400,184600, December­January (G. Carballo)(females, INBIO: INB0003430493, INB0003317401), 1 female, 1 male, April (W. Araña)(female, INBIO: INB0003057085), 1 male, Sendero Bobocara, 300 m, ( INBIO: INB0003076892).

Geographic distribution. (Fig. 34). Known only from lower Central America in Costa Rica, Nicaragua, and Panamá.


Tropical Agricultural Research and Training Center (CATIE)


California Academy of Sciences


Universidade do Extremo Sul Catarinense, Bairro Universitário


University of Alberta, E.H. Strickland Entomological Museum


Hoyt Arboretum


Smithsonian Institution, National Museum of Natural History














Cryptobatis chontalensis Bates

Erwin, Terry L. 2004


Cryptobatis chontalensis

Bates 1883: 202