Colliuris bivittis
Creators: name: Bousquet, Yves
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Carabidae
Colliuris
Colliuris bivittis

description: bivittis group
C. bivittis (Chaudoir, 1872) C. tubulifera (Bates, 1878) marginestriata group
C. marginestriata (Putzeys, 1845) C. sulcicauda (Bates, 1878)
Key to species1
1. Frons and vertex with several long setae beside the two pairs of supraorbital setae ....................... C. lengi Schaeffer ̅ Frons and vertex with only the two typical pairs of supraorbital setae, rarely with an additional pair ...................... 2 2 [1]. Pronotum with relatively coarse punctures over entire surface .................................................................................. 3 ̅ Pronotum without punctures or with punctures only at base and/or apex .................................................................. 6 3 [2]. Elytral interval 3 with six to eight setae, interval 5 with nine setae. Elytra without microsculpture ...........................
..................................................................................................................................................... C. bivittis (Chaudoir) ̅ Elytral interval 3 with three setae, interval 5 without setae. Elytra with isodiametric meshes .................................. 4 4 [3]. Frons with long, deep median depression. Eye markedly voluminous ........................................... C. tubulifera Bates ̅ Frons without or with short, shallow median depression. Eye moderately voluminous ............................................ 5 5 [4]. Elytral intervals 4–9 mostly dark, reddish black. Antennomeres 7–11 infuscate. Vertex short (WH/LV = 2.87).
Elytra less elongate (LE/WE = 1.50)................................................................................................. [C. sp. (Belize)2] ̅ Elytral intervals 4–9 mostly pale, yellowish. Antennomeres entirely pale, yellowish. Vertex longer (WH/LV =
1.70–1.85). Elytra more elongate (LE/WE = 1.79–1.84) .............................................. [C. cosciniodera (Chaudoir)]3 6 [2]. Pronotum without or with one or two setae along each side ...................................................................................... 7 ̅ Pronotum with at least three setae along each side................................................................................................... 21 7 [6].Antennomeres 8–9 (in some specimens also basal part of antennomere 10) whitish, much paler than antennomeres
5–7 and 11 ..................................................................................................................................................................... 8 ̅ Antennomeres 8–10 of same coloration as antennomeres 5–7 and 11 ....................................................................... 12 8 [7].Elytra (except apex) reddish-yellow to reddish with broad, complete black median transverse band. Pronotum black
with apex and base reddish-yellow to reddish ............................................................................. C. ludoviciana (Sallé) ̅ Elytra black with one or two small spots on each side. Pronotum uniformly colored ................................................. 9 9 [8].Elytral interval 3 with four to seven setae, interval 5 with one to four setae. Elytra without sublateral median pale
spots .................................................................................................................................................. C. lioptera (Bates) ̅ Elytral interval 3 with 8–14 setae, interval 5 with five to ten setae. Elytra with sublateral median pale spot on each
side .............................................................................................................................................................................. 10 10 [9].Elytral striae impressed to near apex, more or less uniformly moderately coarsely punctate [Panama] ....................
........................................................................................................................................................[C. lineolata Bates]4 ̅ Elytral striae not impressed toward apex, striae 3–6 rather coarsely punctate over part of anterior half, indistinctly
punctate on posterior half and on other striae............................................................................................................. 11 11 [10].Pronotum with one seta on each side. Elytra proportionally shorter (LE/LP = 1.78–1.90) and narrower (LE/WE =
1.69–1.89) .............................................................................................................................. C. tetrastigma (Chaudoir) 1. The key also includes species found in Central America for which I have seen at least one syntype. The name of these species are listed in square brackets and are not treated subsequently. The other species reported from Central America are C. bierigi Liebke, 1932 (Panama), C. rufipes insignis Chaudoir, 1848 (Puerto Rico), and C. strandi Liebke, 1938 (Panama).
2. One specimen seen in LEMM labelled " Belize, C.A. Toledo Dist. Blue Creek / 89 3'w 16 12'n 22-I-1982 mal. t. A.T. Finnamore / COLLECTION OF THE LYMAN ENTOMOLOGICAL MUSEUM AND RESEARCH LABORATORY STE-ANNE-DE-BELLEVUE QUEBEC, CANADA / Colliuris sp? det. D. Shpeley 1988"
3. Chaudoir (1852: 31) originally stated that this species was from Mexico but later (1863: 280) said that the provenance originally given was incorrect and that the species was from "Minas Geraës, Brésil ". There are five specimens of that species in Chaudoir's collection (MHNP), all labelled only "Ex Musaeo Chaudoir/ Museum Paris". The box label reads in Chaudoir handwritting " cosciniodera Chaud., Bresil, Min.Ger., Squires" (Deuve, pers. comm.). Beside these five specimens, I have seen one other specimen of that species in BMNH collected at " Trinidad: St.Augustine" by C.L. Withycombe.
4. I have seen two syntypes in BMNH of that species. The species was placed in the subgenus Odacanthina Liebke, 1938 (type species: Colliuris cyanea Liebke, 1930). It is closely related in my opinion to members of the tetrastigma group.
̅ Pronotum with two setae on each side. Elytra proportionally longer (LE/LP = 1.95–2.19) and wider (LE/WE = 1.46–
1.68) ..................................................................................................................................... C. caymanensis Darlington 12 [7].Proepisternum with coarse punctures...................................................................................................................... 13 ̅ Proepisternum without punctures except at extreme base .......................................................................................... 14 13 [12].Pronotum without lateral setae. Elytra with elongate microsculpture. Elytra with three pale spots .........................
........................................................................................................................................................ C. tristigma (Bates) ̅ Pronotum with two lateral setae on each side. Elytra without microsculpture. Elytra without pale spots.....................
.................................................................................................. C. pensylvanica (Linné) [some specimens from Cuba] 14 [12].Discal setae on elytra deep black, stiff .................................................................................................................. 15 ̅ Discal setae on elytra not black, not stiff.................................................................................................................... 17 15 [14].Elytra with well impressed microsculpture meshes all over; intervals unequal in width. Frons and vertex mark-
edly rugose [Guatemala to Venezuela].........................................................................................[C. irregularis Bates]5 ̅ Elytra without or with poorly impressed microsculpture meshes over lateral intervals only; intervals (if distinct)
equal in width. Frons and vertex smooth .................................................................................................................... 16 16 [15].Elytral striae distinct, punctate; intervals 5 and 7 at most with two setae each. Pronotum without dorsal swelling.
Body length smaller, 6.0– 7.8 mm ............................................................................................... C. pilatei (Chaudoir) ̅ Elytral striae indistinct on disc, more or less distinct laterally, impunctate; intervals 5 and 7 with more than five
setae each. Pronotum with conspicuous dorsal swelling on basal third. Body length larger, around 9.5 mm [Costa
Rica]....................................................................................................................................... [C. hubenthali Liebke]6 17 [14].Vertex markedly short (WH/LV = 2.35–2.48) ....................................................................................................... 18 ̅ Vertex long (WH/LV = 1.38–1.71) .......................................................................................................................... 19 18 [17].Elytra without spots. Femur entirely yellow. Proepisternum without wrinkles [Cuba] ............. C. noah Darlington ̅ Elytra with pale spots. Femur infuscate over apical half. Proepisternum with deep, short wrinkles [Panama]..........
..................................................................................................................................................[C. championi Bates]7 19 [17].Elytral interval 3 with 13–14 setae, interval 5 with 12 setae ............................................... C. portoricensis Liebke ̅ Elytral interval 3 with four to six setae, interval 5 without or with one seta........................................................... 20 20 [19].Elytral striae impunctate or with small, more or less distinct punctures. Posterior supraorbital seta located at level
of posterior edge of eye [Cuba] ............................................................................................ C. gundlachi Darlington ̅ Elytral striae 2–5 with coarse punctures on anterior half. Posterior supraorbital seta located behind posterior edge
of eye [Mexico] ........................................................................................................................... C. ellipticeps Liebke 21 [6].Antennomeres 10 and 11, in some specimens also part of antennomere 9, whitish, much paler than antennomeres
5–8. Pronotum and elytra with pubescence besides long, black setae .............................. C. subdistincta (Chaudoir) ̅ Antennomeres 9–11 not distinctly paler than antennomeres 5–8. Pronotum and elytra without pubescence......... 22 22 [21].Proepisternum without punctures .......................................................................................................................... 23 ̅ Proepisternum with coarse punctures, at least over basal half ................................................................................ 24 23 [22].Elytra with strong, granulate microsculpture at least over intervals 7–9; elytra without spots.................................
......................................................................................................................................... C. marginestriata (Putzeys) ̅ Elytra without microsculpture; elytra with two median pale spots besides apex ..................... C. sulcicauda (Bates) 24 [22].Elytra bicolored, with distinct yellowish and black areas ..................... C. pensylvanica (Linné) [most specimens] ̅ Elytra unicolored, uniformly reddish to reddish–black ........................................................................................... 25 25 [24].Elytra with strial punctures distinct up to about posterior third. Elytra without microsculpture between ombilical
setae of anterior group. Pronotum with dentiform projection on anterior margin more or less distinct .....................
.................................................................................................................................................... C. sulcicollis (Bates) ̅ Elytra with strial punctures distinct up to about middle. Elytra with microsculpture between ombilical setae of
anterior group. Pronotum with dentiform projection on anterior margin markedly distinct .......................................
.............................................................. C. pensylvanica (Linné) [rare specimens from southern Mexico and Cuba]
5. I have seen two syntypes in BMNH of that species. Liebke (1938: 53) includes the species in the subgenus Procolliuris Liebke, 1933 (type species: C. rugicollis Dejean) along with C. funcki Putzeys (Brazil, Venezuela), C. subdistincta Chaudoir and several other species. I have seen one specimen (SMTD) determined as C. funcki by Liebke and it seems conspecific with the specimens of C. irregularis Bates I have seen. I have not seen significant character states that would suggest that C. irregularis and C. funcki are closely related to members of the subdistincta group.
6. Only the holotype seen in SMTD. Liebke (1938: 71–72) placed this species in the subgenus Pseudoplagiorrhytis Liebke, 1933 (type species: C. excellens Liebke) along with the type species only. I have seen four syntypes (SMTD) of C. excellens, described from Peru, and the species is indeed closely related to C. hubenthali. The group is structurally similar to the species of the marginestriata group, and particularly C. sulcicauda, but in the species of this group the pronotum has no dorsal swelling.
7. I have seen one syntype in BMNH. The species was placed in the subgenus Plagiorhytis Chaudoir (type species: C. plicaticollis Reiche) by Liebke (1938: 71) along with five other South American species.
PILATEI GROUP
Minocasnonia Liebke, 1938: 51, 57. Type species: Casnonia pilatei Chaudoir, 1848 by original designation.
Diagnostic description. Body without pubescence dorsally. HEAD. Vertex proportionally short. Posterior supraorbital seta located at level of posterior edge of eye. PROTHORAX. Pronotum without punctures but with conspicuous transverse wrinkles, without dorsal swelling, lateral groove indistinct; side with one seta. Proepisternum and prosternum without punctures except at extreme base of proepisternum. ELYTRA. Lateral edge extended anteriad humerus. Discal setae black, stiff. Interval 3 with seven to nine discal setae, interval 5 with one or two setae, intervals 1 and 7 without setae. Posterolateral angle slightly projected posteriad. ABDOMEN. Sterna without pubescence except for minute setae medioapically on last sternum of female; last sternum of male without median notch along apical edge.
Note. Liebke (1938: 57) included in this group also C. santarema Chaudoir (Amazonia) and C. fusca Reiche (Colombia; Argentina) from South America and wrote a key to separate them. I have not seen specimens of either species.
description: Published as part of Bousquet, Yves, 2010, Review of the Nearctic, Mexican and West Indian (Greater Antilles) species of Colliuris Degeer (Coleoptera: Carabidae: Odacanthini), pp. 1-39 in Zootaxa 2529 on pages 5-7, DOI: 10.5281/zenodo.196489