Colliuris lengi ( Schaeffer, 1910 )

Bousquet, Yves, 2010, Review of the Nearctic, Mexican and West Indian (Greater Antilles) species of Colliuris Degeer (Coleoptera: Carabidae: Odacanthini), Zootaxa 2529, pp. 1-39 : 12-14

Colliuris lengi ( Schaeffer, 1910)

Casnonia lengi Schaeffer 1910: 395 . Type locality: «Nogales, Arizona» (original citation). Colliuris lengi: Liebke (1930: 659) .

Type material. Schaeffer original description of this species was based on a single specimen. The holotype is in the National Museum of Natural History, Washington, DC. ( Erwin and House 1978: 237). I have not seen the type but the original description is conclusive.

Description. HABITUS. See Fig. 1. COLOR. Head and pronotum reddish-black to black, elytra dark reddish-brown with bluish lustre and lateral margins pale reddish-brown; antennae and legs uniformly yellow to light reddish-brown. MICROSCULPTURE. Body dorsally and proepisternum without meshes. HEAD. Frons with 20–30 setae. Eye proportionally smaller than in other species of the group. PROTHORAX. Pronotum with over 20 setae on each side; anterior edge with lateral dentiform projection barely distinct. Prosternal apophysis with setae. ELYTRA. Intervals 1, 3, 5, 7 with numerous (more than 20) setae. LEGS. Profemur with numerous long setae. MALE GENITALIA. Median lobe as illustrated ( Fig. 4 ).

FIGURE Colliuris lengi (Schaeffer) , habitus (dorsal view). Scale = 1 mm.

Body length: 6.5–7.0 mm.

Geographical distribution. This species has a very restricted range; it is known only from southeastern Arizona and adjacent northern Mexico ( Fig. 19 ).

Records. United States of America. ARIZONA. Cochise Co. : Sierra Vista, Huachuca Mtn. (1, CNC). Ash Canyon Road, Huachuca Mtn. (1, CNC). Garden Canyon, Huachuca Mtn. (1, CMNH). Portal (1, AMNH). Pima Co. : Santa Catalina foothills (1, FSCA). Green Valley (1, AMNH). Santa Cruz Co.: Peña Blanca (4, AMNH, FSCA, UASM). Nogales (10, AMNH, CAS, FSCA). Santa Rita Mountains (1, Blaine Mathison, pers. comm.). Ruby (1, UAIC). Tumacacori Mountains (1, UAIC). Mexico. SONORA. Nogales (1, UASM).

Habitat. Little is known about the habitat requirements of this species. Ball and Bousquet (2001: 109) reported that C. lengi “lives in dry open oak forest, among grass clumps that grow among the oaks.” LUDOVICIANA GROUP

Calocolliuris Liebke, 1938: 50 , 55. Type species: Casnonia ludoviciana Sallé, 1849 by original designation. - Ball (1960: 88); Ball and Bousquet (2001: 59).

Diagnostic description. Body without pubescence dorsally, though is some species very small setae are distinct at high magnification over the elytra laterally. HEAD. Vertex long. Posterior supraorbital seta location variable. PROTHORAX. Pronotum without punctures, except for few ones at base and apex in some species, without or with faint transverse wrinkles, without dorsal swelling; lateral groove indistinct; side with one or two setae. Proepisternum without punctures except at extreme base; prosternum without punctures. ELYTRA. Lateral edge extended anteriad humerus. Discal setae not black and not stiff. Interval 3 with several discal setae, interval 5 without or with 1–12 discal setae, interval 7 without or with one or two discal setae. ABDOMEN. Sterna with pubescence; last sternum of male with median notch along apical edge.

Note. Liebke (1938: 55–56) included in the subgenus Calocolliuris , besides C. ludoviciana , also C. bruchi Liebke ( Argentina) , C. demerarae Liebke ( Guyana) , C. portoricensis Liebke ( Porto Rico; Guadaloupe), and C. rufipes Dejean (French Guyana). I have seen specimens of C. portoricensis and also believe it should be included in the same group as C. ludoviciana .

Among the species seen, C. emdeni Liebke and C. lineolata Bates belong to this group besides those treated. The last-mentioned species was placed in the subgenus Odacanthina Liebke, 1938 (type species: Colliuris cyanea Liebke ) along with C. academica Liebke ( Guyana) , C. cyanea Liebke (Amazonia) and C. canoae Liebke ( Cuba) by Liebke (1938: 55).

Figures

FIGURE 19. Collection localities for Colliuris lengi (Schaeffer) in the United States of America and Mexico.

FIGURES 2 – 9. Median lobe of Colliuris. 2. C. tristigma; 3. C. pensylvanica; 4. C. lengi; 5. C. sulcicauda; 6. C. marginestriata; 7. C. noah; 8. C. pilatei; 9. C. subdistincta.