INTRODUCTION The Cantacaderinae Stål is considered to be a subfamily of the Tingidae by most authors (Froeschner, 1996; Golub, 2001; Guilbert, 2001, 2004). However, Lis (1999) reconsidered the phylogeny of the family and raised Cantacaderinae to family level. She proposed a new sys- tematic organization of the group, splitting it into two subfamilies: Carldrakeaninae Lis and Cantacaderinae, and dividing the latter into two tribes, Ceratocaderini Lis and Cantacaderini sensu Lis. The Phatnomatini Drake and Davis were excluded from the Cantacaderinae and their position remains controversial (Guilbert, 2001, 2004; Schuh et al., 2006). In this paper, a new genus and species are described from New Caledonia. A key to genera of Cantacaderinae is provided and the relationships within the Cantaca- derinae are studied using a phylogenetic analysis based on morphology. In this analysis, I follow the taxonomic results of Schuh et al. (2006) and consider Cantaca- derinae to be a subfamily of Tingidae. MATERIAL AND METHODS The description of the new genus and new species is based on four specimens collected in New Caledonia by G. Monteith: two males and a female collected at 5070 m up the northern slope of Pic d’Amoa (20°58´S, 165°17´E); one male collected 10 th November, 2001 using a Berlese funnel and sieved litter from the rainforest; one male collected 10 th –11 th November, 2001 using a trap baited with human dung; one female on 23 th November, 2003 – 30 th January 2004, using a flight interception trap; and a fifth instar collected at 1000 m on the summit of Aoupinié (21°11´S, 165°16´E) on 20 th October 2004 by G. Mon- teith, by fogging trees and logs with pyrethrum. All measure- ments are in millimetres (mm). Specimens were imaged by CT scanning at the AST-RX MNHN computed tomography facility in Paris, using a v|tome|x L 240 from GE Sensing & Inspection Technologies phoenix|x-ray. CT parameters for adults specimens were 25 kV, 550 μA, 3000 projections, exposure time 1000 ms, fast|scan mode. The voxel size was 0.0036 mm for a total of 1558 slices along the transverse axis of the specimen. CT parameters for larval specimens were 28 kV, 450 μA, 3000 projections, expo- sure time 1000 ms, fast|scan mode. The voxel size was 0.0029 mm for a total of 1396 slices along the transverse axis of the specimen. “Phoenix datos|x” (®GE Sensing & Inspection Technologies phoenix|x-ray, Release 2.0; license UMS 2700 CNRS-MNHN, Paris) was used to reconstruct a virtual stack of slices in trans- verse, coronal and sagittal planes. VGStudio Max (®Volume Graphics, Release 2.1; license UMS 2700 CNRS-MNHN, Paris) was used to complete visualization and 3D rendering. Phylogenetic analysis The phylogenetic analysis is based on the Schuh et al. (2006) character and taxa matrix, following Lis (1999) (i.e., 23 taxa corresponding to the 12 known genera of Cantacaderini, and 11 out group taxa). Among the out group taxa, Phatnoma Fieber and Zetekella Drake belong to the tribe Phatnomatini; Agramma Stephens, Corythucha Stål and Tingis Fabricius the Tingini Laporte; Annomatocoris bolivianus Schuh, Cassis & Guilbert the Vianaidinae Kormilev; Xylastodoris Barber and Onymocoris Drake & Slater, both Thaumastocoridae, Myiomma Puton, Psal- lops Usinger and Plagiognathus Fieber are all Miridae. The new genus described here and Afghanoderus Lis are included in the sample of taxa analyzed in this paper. The two known fossil genera of Cantacaderinae were not included in the analysis because data on many of their characters are not available. Fifty characters of the Schuh et al. (2006) character set were used (Appendix 1). Characters 21 and 40 included in the Schuh et al. (2006) analysis were not used because character 21 is the same as character 19 and character 40 is not informative. Characters are treated as non-additive, as in Lis (1999), whereas multistate characters were treated as additive in Schuh et al. (2006). The data matrix was analysed by parsimony, using a heuristic search, multi TBR + TBR, 1000 iterations and two starting trees, using Nona (Goloboff, 1998) through a Winclada inter- face (Nixon, 2002). A bootstrap analysis was performed to test the robustness of the nodes with 1000 iterations. The matrix and characters are presented in Appendix 1. Eur. J. Entomol. 109: 111–116, 2012 http://www.eje.cz/scripts/viewabstract.php?abstract=1686 ISSN 1210-5759 (print), 1802-8829 (online) Phylogeny of Cantacaderinae (Heteroptera: Tingidae) revisited after the description of a new genus and new species from New Caledonia ERIC GUILBERT Muséum National d’Histoire Naturelle, Département de Systématique et Evolution, UMR 7205 CNRS, CP50, 57 rue Cuvier, 75005 Paris, France; e-mail: guilbert@mnhn.fr Key words. Heteroptera, Tingidae, Cantacaderinae, description, New Caledonia, new genus, new species, phylogeny, systematics, taxonomy Abstract. A new genus and new species of Cantacaderinae (Heteroptera: Tingidae) is described, Caledoderus monteithi. A key to genera is provided. The phylogenetic relationships among the Cantacaderinae, including this new genus and species, are revisited. The results are congruent with previous studies. However, the Ceratocaderini is a sister group of Carldrakeaninae and not Cantaca- derini, even if only weakly supported by the analysis. Therefore, the status of Ceratocaderini and Cantacaderini is maintained, whereas Carldrakeanini stat. nov. is reduced to tribal level and they are all included in the Cantacaderinae. 111