Hemiptera: Heteroptera: Tingidae) from Western Australia Melinda L
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RECORDS OF THE WESTERN AUSTRALIAN MUSEUM 27 148–155 (2012) Description of three new species of Ceratocader (Hemiptera: Heteroptera: Tingidae) from Western Australia Melinda L. Moir1 and Barbara Lis2 1 ARC Centre for Excellence in Environmental Decisions, School of Botany, University of Melbourne, Parkville, Melbourne, Victoria 3010, Australia. Email: [email protected] 2 Department of Biosystematics, Opole University, Oleska 22, 45–052 Opole, Poland. ABSTRACT – This paper describes three new species of Ceratocader (Tingidae), almost doubling the number of known species. Ceratocader langlandsi sp. nov. is found in arid south Western Australia. In contrast, C. coatesi sp. nov. and C. bridgettae sp. nov. are found in the wetter tall forests of the far south-west of Western Australia. Notes on the genus, and its sister genus, Australocader, as well as a key to species of Ceratocader, are provided. KEYWORDS: Cantacaderinae, coextinction, short-range endemic INTRODUCTION 2010 for detailed descriptions of the methods and sites). The endemic Australian lacebug genus Ceratocader Specimens are pinned and deposited in the Western Drake, 1950 (Hemiptera: Heteroptera: Tingidae) Australian Museum, Perth (WAM), and the M.L. Moir is currently represented by four described species. personal collection, Perth (MLM). Ceratocader armatus (Hacker, 1928), the armed Specimens were examined with an Olympus SZ51 lacebug, is recorded from South Australia, and C. stereo microscope, and all images were produced using dentatus (Hacker, 1928), the dented lacebug, from a Leica MZ16 stereo microscope and the package Auto- northern Tasmania (Hacker 1928; Cassis and Gross montage Pro version 5.02(p) (Syncroscopy, Cambridge, 1995). Lis (2000) added a further two species: C. fulvus U.K.). A map of species distribution was produced in Lis, 2000 from the far south-west of Western Australia ArcGIS Version 9.1 (Environmental Systems Research and C. monteithi Lis, 2000 (Monteith’s lacebug) from Inc.). Tingidae terminology follows Froeschner (1996) central Queensland (Figure 1). and Lis (2000), classifi cation follows Guilbert (2012). Western Australia is particularly rich in lacebug species of the family Tingidae, with a key to the genera present in the south-west provided by Moir and Guilbert SYSTEMATICS (2012). Despite recent publications documenting new species (e.g. Cassis and Symonds 2008, 2011; Guilbert Family Tingidae Laporte, 1833 and Moir 2010; Moir 2009; Moir and Guilbert 2012) many species await description. Here, we describe three Subfamily Cantacaderinae Stål, 1873 new species of Ceratocader from Western Australia: Ceratocader langlandsi sp. nov. from the arid southern Tribe Cerato caderini Lis, 1999 region, plus C. coatesi sp. nov. and C. bridgettae sp. Genus Ceratocader Drake, 1950 nov. from the far south-west of the State (Figure 1). In addition, a discussion on the genus and a key to species urn:lsid:zoobank.org:act:467D998F-7ECB-4BD7–8F83– is provided. 2256582A46CB Ceratocader Drake, 1950: 157. MATERIALS AND METHODS The specimens examined here were collected TYPE SPECIES by beating, vacuum sampling or pitfall traps (see Cantacader armatus Hacker, 1928 by original Langlands et al. 2006; Moir et al. 2005a; Orabi et al. designation. urn:lsid:zoobank.org:pub:14E1F58D-47BE-4839-85EC-8CEEF76FBAC8 NEW SPECIES OF CERATOCADER 149 REMARKS Tingid taxonomy is based solely on the external morphology, often without any description of the genitalia, which are minimally diagnostic (Froeschner 1996; Lis 2000). Ceratocader was previously distinguished from other genera within the subfamily Cantacaderinae by the combination of the following characters: exposed scutellum, presence of 6–8 long spines on the lateral margins of the paranotum, and the anterior margin of the pronotum projecting a small to medium hood over the head (Froeschner 1996; Lis 2000). However, taking into account the features of the species described herein, we redefi ne the genus to include Cantacaderinae species with 3–8 spines on the lateral margins of the paranotum, and the pronotal hood present or absent (e.g. Figures 8–13). FIGURE 1 Map of Australia with collection localities of KEY TO SPECIES OF CERATOCADER Australian Ceratocader species. Symbols (ADAPTED FROM LIS, 2000) represent the following: stars – C. dentatus; 1. Lateral spines on paranotum not longer than the white squares – C. armatus; black square – C. monteithi; cross – C. fulvus; diamond – C. diameter of the eyes (Figure 9) ............................ 2 coatesi; white circle – C. langlandsi; and black circle – C. bridgettae. At least one pair of lateral spines on paranotum longer than the diameter of the eyes (Figures 10–13) ................................................................... 3 Ceratocader langlandsi sp. nov. 2. Three well-defined lateral spines on paranotum urn:lsid:zoobank.org:act:5508DE89–0F8C-4E5D- (Figure 9) .........................Ceratocader langlandsi A126–42EF035B7F69 Lateral spines on paranotum very small, almost Figures 1–3, 9 non-existent, but number more than three ............................................ Ceratocader dentatus MATERIAL EXAMINED 3. Costal area recurved over onto itself (Figures 6,7) Holotype .......................................... Ceratocader bridgettae Australia: Western Australia: ♂, Queen Victoria Springs Nature Reserve, night beating, 30º14’S, No part of costal area recurved over onto itself ....... 4 123º41’E, 21 March 2003, P.R. Langlands (WA M E82993). 4. Base of posterior cephalic spines distinctly one eye length in front of eyes (Figure 13) ......................... Paratype .................................................Ceratocader fulvus Australia: Western Australia: 1 ♂, 1 ♀, same as holotype (WAM E82994, WAM E82763). Base of posterior cephalic spines almost touching Other material examined eyes (Figure 12) .................................................... 5 Australia: Western Australia: 1 ♂ same as holotype 5. Hood projecting over head (Figure 11). Posterior part (MLM 205). of paranotum expanded and forming lobe bearing 4–5 rows of aerolae ............ Ceratocader armatus DIAGNOSIS Ceratocader langlandsi is most similar to C. fulvus, Hood not projecting over head (Figure 8). Posterior but the two differ in the length and number of lateral part of paranotum not expanded ......................... 6 spines on the paranotum; C. langlandsi has three medium spines per lateral margin which are all shorter 6. Anterior paranotal spine not surpassing eyes in than the diameter of the eye, whereas C. fulvus has length (Figure 12) ..............Ceratocader monteithi approximately seven spines of varying lengths, but at least one spine of equal length to the diameter of the eye Anterior paranotal spine surpassing eyes in length (see Figures 3, 9). Also, C. fulvus has a prominent hood, (Figure 8) .............................. Ceratocader coatesi whereas C. langlandsi has not. 150 M.L. MOIR AND B. LIS DESCRIPTION MATERIAL EXAMINED Body measurements. ♂ 5.96 ± 0.24 mm (n = 3), ♀ 5.80 Holotype mm (n = 1). Australia: Western Australia: ♂, Porongurups Colour. Eyes dark red. Body, genital capsule, 4th National Park, Devils Slide, site 6, 34º40’31”S, antennal segment, femur, distal half of tibia and 117º51’05”E, ex Gastrolobium crenulatum [Note: markings on hemelytra (particularly band across plant species misidentifi ed = G. subcordatum], beat, costal region, almost midway down hemelytra) dark 15 October 2006, M.L. Moir and J.M. Waldock (WAM brown. Head, hemelytra, and pronotum golden brown. E82995). Pronotum and hemelytra (particularly main veins) infused with orange (Figure 2). Remaining antennal DIAGNOSIS segments and legs brown. Ceratocader coatesi resembles both C. monteithi and Head and antennae. Head with 4 long, cephalic C. armatus, but differs from both species by fewer (c. spines, surpassing 2nd antennal segment (Figures 2, 5) spines per lateral margin of the paranotum, with the 3). Antenniferous process slender and pointed, not anterior spine long, extending forward and surpassing the eyes (see Figures 4, 8). surpassing 1st antennal segment. Antennae slender, antennal segments measurements: I, 0.12 mm; II, DESCRIPTION 0.10 mm; III, 1.90 mm; IV, 0.30 mm. Fourth antennal segment pilose. Rostrum long, extending to 4th visible Body measurements. ♂ 3.80 mm (n = 1). abdominal segment. Colour. Eyes red. Collar region, 4th antennal segment and markings on hemelytra (particularly band across Body. Coleopterous. Pronotum large, posterior costal region near middle of hemelytra) dark brown. margin bisinuate; anterior margin raised slightly over Head, body, hemelytra, genital capsule, pronotum, head but lacking obvious hood; three carina, each remaining antennal segments and legs golden brown. uniseriate. Lateral carina broken at one-fi fth length from Cephalic spines, pronotum, hemelytra and body infused anterior margin of pronotum, with large gap and small with orange (Figure 4). spine projecting upward from anterior edge of break. Head and antennae. Head with four long, cephalic Paranota large, widest at midlength, triseriate (Figure spines, surpassing 2nd antennal segment (Figures 4, 2). Pronotum with 3 short (less than the diameter of an 8). Antenniferous process slender and pointed, not eye) lateral spines per side (Figures 2, 9). Forewings (or surpassing 1st antennal segment. Antennae slender, hemelytra) much wider than pronotum, extending out antennal segments measurements: I, 0.10 mm; II, approximately half the width of the pronotum. Lateral 0.07 mm; III, 1.20 mm; IV,