Colliuris caymanensis Darlington, 1947

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 : 22-23

Colliuris caymanensis Darlington, 1947 , new status

Colliuris tetrastigma caymanensis Darlington, 1947: 211 . Type locality: «South Sound, Grand Cayman » (original citation).

Type material. The holotype of this taxon is deposited in BMNH ( Darlington 1947: 211).

Description. Same character states as C. tetrastigma except for the following. Body more robust, with elytra proportionally longer (compared to pronotum) and narrower (see table 1). COLOR. Antennomere 10 at least partly whitish in the vast majority of specimens, in some only over basal third, in other over entire surface. PROTHORAX. Side of pronotum with two setae (exceptionally one or three on one side only). MALE GENITALIA. Median lobe as illustrated ( Fig. 13 ).

Body length: 7.2–8.8 mm.

Geographical distribution. I have seen specimens of this species from southeastern Florida (one specimen, probably a straggler), Cuba, the Cayman Islands, Jamaica and Haiti. I have also seen one female labelled " Mex., S.L.P. Cd. Valles, Palma Motel VII.8–23, 1969 u. v. light S.&J. Peck" in UASM which I cannot separate from the specimens of the West Indies; the basal third of the antennomeres 10 is whitish, the side of the pronotum has two or three setae, and the proportions of the body (LE/LP = 2.01 and LE/WE = 1.63) fell within the range of the West Indian specimens.

Records. United States of America. FLORIDA. Lake Worth, Palm Beach Co., Vince Golia (1, VGC) [mercury vapor light]. Cuba. CIUDAD DE LA HABANA. Guanabo, 22.II.2000, Pavel Valdés (5, CNC) [margins of Guanabo River]. Cayman Islands. GRAND CAYMAN. Rum Point, 24.II.1993, W.E. Weiner, J.M. Swearingen (1, USNM). Boatswain Point, 21.VI.1976, E.J. Gerberg (1, UASM). Jamaica. Duncans, 15.VIII.1966, Howden & Becker (1, CNC). Haiti. Étang Lachaux, 26–27.X.1934, Darlington (12, MCZ).

Habitat. Darlington (1947: 211) noted that this species "belongs to a group of Colliuris that live among reeds and grass growing in water".

Note. Liebke (1933: 210) described C. canoae in a key to species of Odacanthina with the sole indication that it was collected in " Kuba ". Based on the character states of the key, his specimens of C. canoae could be conspecific with those attributed in this work to C. caymanensis Darlington. A formal synonymy must wait until the type specimen(s) of C. canoae are located and studied. The type specimen(s) of C. canoae is not in SMTD ( O. Jäger, pers. comm.), MNHU (B. Jaeger, pers. comm.), BMNH (M. Barclay, pers. comm.) or the Museum and Institute of Zoology of the Polish Academy of Sciences, Warsaw (see Mroczkowski 1960). Erwin (1975: 267) noted that the carabid collection of Max Liebke was partially destroyed in World War II, so the type specimen(s) may no longer exist.

Figures

FIGURES 10 – 16. Median lobe of Colliuris. 10. C. tetrastigma; 11. C. portoricensis; 12. C. gunlachi; 13. C. caymanensis; 14. C. ellipticeps; 15. C. ludoviciana; 16. C. lioptera.