Thiallela epicrociella ( Strand, 1918 )

Yang, Linlin & Ren, Yingdang, 2018, Two new species, one unrecorded species, and one newly reported male of genus Thiallela Walker, 1863 from China (Lepidoptera: Pyralidae: Phycitinae), Zootaxa 4387 (3), pp. 436-450 : 440-441

Thiallela epicrociella ( Strand, 1918)

( FIGS. 1 , 2 , 9 , 13 )

Phycita (?) epicrociella Strand, 1918: 273 . TL: China ( Taiwan, Alishan). TD: DEI. Numonia epicrociella: Shibuya, 1928: 18 .

Acrobasis epicrociella: Yamanaka & Yoshiyasu, 1992: 93 . Thiallela epicrociella: Roesler, 1993: 240 .

Redescription. WINGSPAN 20.5¯22.5 MM (N = 9) ( FIG. 2 ). VeRTeX AND FRONS CReAMY YeLLOW. ANTeNNA KHAKI, MALe FLAGeLLUM WITH FIRST TO FIFTH SeGMeNTS DILATeD, SIXTH SeGMeNT DISTINCTLY NOTCHeD, CILIA SHORTeR THAN 1/3 LeNGTH OF DIAMeTeR OF FLAGeLLUM. LAbIAL PALPUS YeLLOWISH WHITe, FIRST AND SeCOND SeGMeNTS MIXeD WITH GRAYISH bLACK; THIRD SeGMeNT AbOUT HALF LeNGTH OF SeCOND SeGMeNT. OCCIPUT, PATAGIUM, TeGULA AND THORAX YeLLOWISH OCHeROUS WITH SPARSe GRAYISH bLACK AND bROWN SCALeS. FOReWING WITH bASAL MAjORITY ReGION YeLLOWISH OCHeROUS, WITH A FeW SCATTeReD bLACK SCALeS, AND A LARGe, ARCHeD, SUbTRIANGULAR GRAYISH bLACK PATCH ADjACeNT TO DORSAL MARGIN AND INWARDLY SUb- ADjACeNT TO ANTeMeDIAL LINe; CeNTRAL ReGION ASH GRAY, MOTTLeD LOTS OF GRAYISH bLACK AND PALe WHITe SCALeS, TINTeD WITH SeVeRAL bLACK, WHITe AND RUSTY bROWN SCALeS, bLACK ALONG VeINS; DISTAL ReGION GRAY; ANTeMeDIAL LINe NeAR MIDDLe OF FOReWING, bLACK, ARCHeD, INTeRRUPTeD, INWARDLY eDGeD WITH AN INDISTINCT YeLLOWISH WHITe LINe; POSTMeDIAL LINe AT DISTAL 1/6 OF FOReWING, bLACK, ARCUATe, SLIGHTLY CONCAVe AT M1 AND CUA2, eDGeD OUTWARDLY WITH AN ObSCURe GRAYISH WHITe LINe, AND A bROWN SHADe ADjACeNT TO GRAYISH WHITe LINe; DISCAL SPOTS FUSeD, ObSCURe, bLACKISH bROWN; TeRMINAL LINe bLACK, INTeRRUPTeD, DISTINCT; CILIA bROWN. HINDWING SeMITRANSPAReNT, PALe GRAYISH WHITe, DARK bROWN ALONG MARGINS AND VeINS; CILIA GRAYISH WHITe. LeGS YeLLOWISH WHITe, FOReLeG MOTTLeD WITH NUMeROUS bLACKISH GRAY, MID TIbIA WITH AN ObLIqUe bLACKISH GRAY PATCH NeAR eND, TARSUS MIXeD WITH bLACKISH GRAY, HIND TARSUS MIXeD WITH bLACKISH bROWN.

Male genitalia ( FIG. 9 ). UNCUS HOODLIKe, bROADeR THAN LONG, ROUNDeD AT APeX, SeTOSe IN DISTAL HALF OF DORSAL SURFACe. APICAL PROCeSS OF GNATHOS STRONGLY SCLeROTIZeD, SPATULATe, APeX TRUNCATe, AbOUT SAMe LeNGTH AS UNCUS. TRANSTILLA WITH TeRMINAL PART FUSeD INTO AN ARCeD PLATe, WITH A PAIR OF STRONGLY SCLeROTIZeD TRIANGULAR POSTeROLATeRAL PROCeSSeS. VALVA GRADUALLY bROADeNeD TO ROUNDeD APeX; COSTA A NARROWeD bAND, eXTeNDING TO eND OF VALVA, NeARLY eqUAL WIDTH eXCePT SLIGHTLY TAPeReD DISTALLY; SACCULUS 2/3 LeNGTH OF VALVA, TRIANGULAR, bASe bROAD, TAPeReD TO APeX, APICAL 1/3 FRee; CLASPeR A NARROWeD bAND, ARISING FROM NeAR bASe OF COSTA ObLIqUe OUTWARDLY TO eND OF SACCULUS, bASAL HALF ARCHeD, DISTAL HALF WeAKLY SCLeROTIZeD, WITH A MASTOID FLAP AT bASe, beARING SPAReS SeTAe. JUXTA V-SHAPeD, LATeRAL LObeS WeLL DeVeLOPeD, FUSIFORM, 4/5 LeNGTH OF APICAL PROCeSS OF GNATHOS, beARING SPARSe SeTAe TeRMINALLY. VINCULUM U-SHAPeD, LeNGTH SHORTeR THAN TRANSVeRSe POSTeRIOR MARGIN. AeDeAGUS CYLINDRICAL, 3/4 LeNGTH OF VALVA, WITH AN IRReGULAR PLATe NeAR bASe, NUMeROUS SMALL CONICAL CORNUTI IN DIFFeReNT SIZe IN DISTAL 3/5. EIGHTH AbDOMINAL TeRGITe FAN-SHAPeD; eIGHTH AbDOMINAL STeRNITe bOWL-SHAPeD, ASSOCIATeD WITH A PAIR OF CULCITA.

Female genitalia ( FIG. 13 ). PAPILLAe ANALIS SUbTRIANGULAR, APeX ROUNDeD, WITH VeSTURe OF THIN HAIRS. APOPHYSIS POSTeRIORIS SLIGHT LONGeR THAN ANTeRIORIS. EIGHTH AbDOMINAL SeGMeNT SHORT, A THIRD AS LONG AS WIDe. ANTRUM STRONGLY SCLeROTIZeD, SOMeWHAT ReCTANGULAR, THRee TIMeS AS WIDe AS LONG, ITS POSTeRIOR MARGIN INTeRMeDIATeLY V-SHAPeD CONCAVe. DUCTUS bURSAe WeAKLY SCLeROTIZeD, AbOUT 1/3 WIDTH, TWICe LeNGTH OF ANTRUM, PUNCTATe ON INNeR WALL IN POSTeRIOR HALF. CORPUS bURSAe OVATe, 1.5 TIMeS AS LONG AS WIDe; SIGNUM STRONGLY SCLeROTIZeD, A LARGe L-SHAPeD beNDING HORN ON A NARROW bASe, SITUATeD AT AbOUT POSTeRIOR 1/3 OF CORPUS bURSAe, PUNCTATe AROUND. DUCTUS SeMINALIS INCePTeD POSTeRIOR MARGIN OF CORPUS bURSAe, OPPOSITe TO SIGNUM.

Material examined. CHINA: Guangdong: 1 ♀, LIANHUASHAN (22°58'N 113°30'E), DONGGUAN, 21.VI.2002, COLL. GUILIN LIU, GeN. SLIDe NO. RYD 04659 ( NKUM) . Guangxi: 1 ♀, DONGZHONG YARD (21°37'N 107°31'E), FANGCHeNGGANG, 640 M, 8.IV.2002, COLL. SHULIAN HAO & HUAIjUN XUe, GeN. SLIDe NO. RYD 04514 ( NKUM) . Hainan: 1 ♂, YAjIA (19°05'N 109°07'E), MT. BAWANG, 261 M, 20.VII.2015, COLL. QINGYUN WANG et al., GeN. SLIDe NO. YLL 15193M ( NKUM) . Yunnan: 3 ♂♂, 3 ♀♀, YeXIANGGU (22°10'N 100°52'E), XISHUANGbANNA, 762 M, 17¯ 19.VII.2014, COLL. KAIjIAN TeNG et al., GeN. SLIDe NOS YLL 15185M , YLL15187M, YLL15188F (NKUM).

Distribution. CHINA (GUANGDONG, GUANGXI, HAINAN, TAIWAN, YUNNAN).

Notes. THe MALe OF T. epicrociella IS DeSCRIbeD FOR THe FIRST TIMe.

Figures

FIGURE 1. Distribution of Chinese Thiallela spp. □ T.epicrociella; ■ T. hiranoi; ○ T.ligeralis; ● T. naevilla; A T. celadontis sp. nov.; ▲T. platantra; ◊ T.sulciflagella sp. nov.

FIGURES 2¯5. Adults of Thiallela spp. 2, T. epicrociella, ♂, 2a, head, ♂; 3, T. ligeralis, ♂, 3a, head, ♂; 4, T. celadontis sp. nov., holotype, ♂, 4a, head, paratype, ♂; 5, T. sulciflagella sp. nov., holotype, ♂, 5a, head, paratype, ♂ (2¯5 scales = 2.0 mm; 2a¯5a scales = 0.5 mm).

FIGURES 13¯16. Female genitalia of Thiallela spp. 13, T. epicrociella, slide No. RYD04659; 14, T. ligeralis, slide No. RYD04739; 15, T. celadontis sp. nov., paratype, slide No. YLL15191; 16, T. sulciflagella sp. nov., paratype, slide No. YLL15195 (scales = 0.5 mm).

FIGURES9¯10. Male genitalia of Thiallela spp. 9, T. epicrociella, slide No. YLL15185; 10, T.ligeralis, slide No. LHX14112 (scales = 0.5 mm).