The species of Symplocodes Hebard (Blattodea: Ectobiidae: Blattellinae) with description of a new species from China Author Zheng, Yuhong Author Wang, Chenchen Author Che, Yanli Author Wang, Zongqing text Journal of Natural History 2015 2015-07-31 50 339 361 journal article 21259 10.1080/00222933.2015.1079337 b3e847ad-dad9-4fb9-822f-ef8adee0ed2d 1464-5262 3992080 25DFE591-F01F-4EC7-95CD-604A7D70C3BA Symplocodes euryloba sp. nov. ( Figures 1I, J , 7A – L , 8P ) Figure 7. Symplocodes euryloba sp. nov. from China, Hainan Prov., Nada. (A) Head, frontal view; (B) maxillary palps 3 – 5; (C) front femur; (D) pronotum; (E) tegmen; (F) hind wing; (G) abdominal tergum 7, dorsal view; (H) supra-anal plate and paraprocts, ventral view; (I) subgenital plate, dorsal view; (J) phallomere L3; (K) phallomere L2vm; (L) phallomeres R2 & R3. Scale bars = 0.5 mm (A – D, G – L), 1 mm (E, F). Figure 8. Tarsal claws. (A – C) Chorisoserrata biceps Wang et Feng , male: (A) front leg; (B) middle leg; (C) hind leg. (D – F) Symplocodes manubria Feng et Guo , male: (D) front leg; (E) middle leg; (F) hind leg. (G – I) Symplocodes marmorata marmorata (Brunner von Wattenwyl) , male: (G) front leg; (H) middle leg; (I) hind leg. (J – L) Symplocodes marmorata tsaii (Bey-Bienko) comb. nov. , male: (J) front leg; (K) middle leg; (L) hind leg. (M – O) Symplocodes ridleyi (Shelford) , male: (M) front leg; (N) middle leg; (O) hind leg. (P) Front tarsal claw of Symplocodes euryloba sp. nov. , male. Scale bars = 0.2 mm. Type specimens Holotype : male, China , Hainan Prov. , Nada , April 1962 , coll. Y Zhou ( SWU ) . Paratype : one male, China , Hainan Prov ., Mt Jianfengling , 17 June 1982 , coll . LY Zheng ( SYSU ). Description Length, male, overall length including tegmen: 11.5 mm ; pronotum length × width: 2.6 × 3.7 mm ; tegmen length: 9.0 mm. Body small, pale yellow to yellowish brown ( Figure 1J ). Vertex yellowish brown with irregular brown maculae. Face blackish brown. Ocellar spot yellowish white ( Figure 1I ). Antennae yellowish brown. Fifth maxillary palpomere brown with apical part yellowish white, the others yellowish brown ( Figure 1I ). Pronotum yellowish brown, with one dark brown curved stripe on lateral corner, and lateral borders nearly hyaline ( Figures 1J , 7D ). Tegmina yellowish brown ( Figure 1J ), hind wings hyaline. Abdominal terga blackish brown, sterna yellowish brown with brown spots on lateral borders ( Figure 1J ). Vertex with interocular space less than the distance between antennal sockets ( Figure 7A ). Fourth and fifth maxillary palpomeres approximately same length, and both shorter than the third ( Figure 7B ). Pronotum subelliptical, broadest width behind the middle, hind margin slightly produced medially ( Figure 7D ). Tegmen with six anterior rami of radius; with 10 apical rami of radius and unbranched; median and cubitus veins longitudinal, median vein with one complete branch before the middle, and cubitus vein with three complete branches, one with secondary divisions ( Figure 7E ). Hind wing with branched R1 and with one anterior rami of radius; median and cubitus veins weakly curved, the former simple and cubitus vein with one single complete branch near apex, incomplete branch absent ( Figure 7F ). Front femur Type A3 ( Figure 7C ), pulvilli on four proximal tarsomeres. Tarsal claws symmetrical, distinctly dentate ( Figure 8P ). Seventh abdominal tergum specialized, with a pair of oblique ridges (visible in pinned specimen) through centre and posterior part, the centre hyaline, and with reduced lateral lobes at disc ( Figure 7G ). Supra-anal plate ( Figure 7H ) in ventral view symmetrical and nearly triangular, with hind margin slightly concave in the middle; right and left intercercal processes similar, large and upturned, apex tapering and each with a spinous process near apical third. Right and left paraprocts ( Figure 7H ) irregular and dissimilar. Subgenital plate ( Figure 7I ) in dorsal view asymmetrical, left posterolateral corner with a non-setose process which is broad, upturned and blunt at apex, the right posterolateral corner weakly produced and with setae; hind margin arcuate and produced in the middle, left side with small spines, setae, and a process with spines on right side; right stylus arising at the concavity of right side of subgenital plate, left stylus absent. Genitalia with L3 ( Figure 7J ) very small, without pre-apical incision; L2vm ( Figure 7K ) slender and rod-like, with distal part curved and apex acute, the membranous filament arising near the apical quarter; R2 ( Figure 7L ) curved, R3 ( Figure 7L ) with upper lobe resembling a long handle and lower lobe nearly fan-shaped. Remarks This species bears a close resemblance to S. juxtaridleyi Roth, 1995 , but differs from the latter in the following: (1) subgenital plate with hind margin arcuate and produced in the middle, but in the latter coniform; (2) left posterolateral corner process of subgenital plate upturned and blunt at apex, but the process of the latter with apex acute; (3) L2vm with inner margin smooth, but the latter with inner margin minutely serrated; (4) left stylus absent, but the latter with left stylus. Etymology The specific epithet is derived from the Latin word “ eurylobus ” , referring to the subgenital plate being broad as a result of the protrusion on the left posterolateral corner. Distribution China ( Hainan ). Checklist of the species and subspecies of Symplocodes 1. Symplocodes amicus Bey-Bienko, 1958: 673 . ( China ) 2. Symplocodes annamensis ( Hanitsch, 1927: 9 , Ceratinoptera ). ( Vietnam , Thailand ) 3. Symplocodes impar Bey-Bienko, 1969: 857 . ( India ) 4. Symplocodes juxtaridleyi Roth, 1995: 997 . ( Thailand ) 5. Symplocodes manubria Feng et Guo, 1990: 340 . ( China ) 6. Symplocodes marmorata ( Brunner von Wattenwyl, 1893: 19 , Phyllodromia ). ( China , Myanmar , Thailand ) Subspecies Symplocodes marmorata marmorata ( Brunner von Wattenwyl, 1893: 19 ) . ( China , Myanmar , Thailand ) Subspecies Symplocodes marmorata tsaii ( Bey-Bienko, 1958: 673 ) comb. nov. ( China ) 7. Symplocodes ridleyi ( Shelford, 1912: 660 , Hemithyrsocera ). ( China , Singapore , Indonesia , Malaysia ) 8. Symplocodes euryloba sp. nov. ( China ) Key to species and subspecies of Symplocodes worldwide (males) 1. Right stylus present ( Figures 2I , 3I , 4K – L , 6J , 7I ).............................................................. 2 Right stylus absent......................................... ......................................... Symplocodes impar 2. Hind margin of subgenital plate produced, left portion with a large or small process ............................................................................................................................................... 3 Hind margin of subgenital plate slightly produced to left, without process.......... ........................................................................................................................ Symplocodes amicus 3. Left stylus present..................................... ..................................... Symplocodes juxtaridleyi Left stylus absent ( Figures 2I , 3I , 4K, L , 6J , 7I ).................................................................. 4 4. Ventral surface of supra-anal plate with several spines near hind margin ( Figures 2H , 3H , 4H – J )................................................................................................................................... 5 Ventral surface of supra-anal plate without spines ( Figures 6H, I , 7H ) ................. 7 5. Left posterolateral margin of subgenital plate with a large and long handle-like process, pointed to the left and somewhat upwards; paraprocts without spinelike process ( Figure 2H – I )............................... ............................... Symplocodes manubria Left posterolateral margin of subgenital plate with a small process, pointed to the lower left corner; paraprocts with several spine-like processes ( Figures 3H, I , 4H – L )................................................................................................................................................... 6 6. Intercercal processes with apices divided into two to four spinous branches and upcurved; the upper branch obviously larger than the lower ones ( Figure 4H – J ) ............................................................................. Symplocodes marmorata tsaii comb. nov. Intercercal processes with apex tapering and each with a spine-like process preapically, which is connected to the main part of the process by membrane ( Figure 3H ) ............................... ............................... Symplocodes marmorata marmorata 7. Seventh abdominal tergum modified, without setae in the middle ( Figure 7G ) ............................................................................................. Symplocodes euryloba sp. nov. Seventh abdominal tergum modified, with setae in the middle ( Figure 6G ) .... 8 8. Seventh abdominal tergum with reduced lateral lobes, subgenital plate with left posterolateral corner produced and elongated, apex slightly concave..................... .............................................................................................................. Symplocodes annamensis Seventh abdominal tergum without reduced lateral lobe, subgenital plate with left posterolateral corner produced and unevenly broad, apex broadly rounded ( Figure 6G,J )................................................................................................ Symplocodes ridleyi