Protohermes orientalis, Liu, Xingyue, Hayashi, Fumio & Yang, Ding, 2007

Liu, Xingyue, Hayashi, Fumio & Yang, Ding, 2007, Systematics of the Protohermes costalis species-group (Megaloptera: Corydalidae), Zootaxa 1439, pp. 1-46 : 33-34

Protohermes orientalis sp. nov.

( Figs. 17 , 101–107 )

Diagnosis: Head with three blackish markings on each side of vetex; antenna entirely black; pronotum with two blackish markings on each side; legs almost dark; male ninth sternum with extremely shallow trapezoidal posterior incision.

Body length 25–32 mm (male) and 32–35 mm (female); forewing length 31–39 mm (male) and 41–45 mm (female), hindwing length 30–31 mm (male) and 36–38 mm (female).

Head ( Fig. 101 ) yellowish brown, without post-ocular spine; vertex with three blackish markings on each side, anterior marking large and subquadrate, posterolateral marking cuneiform, posteromedial marking punctuate. Compound eyes brown; ocelli yellowish brown, darkly margined medially. Antennae black. Mouthparts yellowish brown; maxillary palpus and labial palpus dark brown, mandible with distal half black.

Prothorax ( Fig. 101 ) yellowish brown; pronotum with two blackish markings on each side. Meso- and metathorax dark, dorsally with each center pale yellow. Thoracic pilosity yellow, much longer on meso- and meta thorax. Legs dark with dense yellowish short setae; fore and mid legs with trochanters and dorsal surface of femora black; tarsal claws reddish brown. Forewings ( Fig. 17 ) pale smoky brown, with 1 yellowish marking at base, 3–4 yellowish markings at middle and 1 round yellowish markings on apical 1/3; costal cellules with brownish stripes; veins dark except veins in yellowish markings pale yellow. Hindwings much paler than forewings, respectively with 1 yellowish marking at middle and apical 1/3; veins dark, except veins in yellowish markings and at base pale yellow. Rs 9 to 10-branched, last branch bifurcate; 9–11 crossveins between R1 and Rs; M1+2 6 to 7-branched, M3+4 2 to 3-branched; 1A 3-branched.

Abdomen dark with yellowish short setae. Male ninth tergum ( Fig. 102 ) subquadrate, with arched anterior margin and truncate posterior margin. Ninth sternum ( Fig. 103 ) subquadrate, posterior margin with extremely shallow incision, leaving a pair of small widely separated subtriangular posterior processes; central portion inflated. Ninth gonostylus ( Fig. 104 ) unguiform and slightly curved dorsomedially. Tenth tergum ( Fig. 102– 103 ) short and subcylindrical, ventrally with one feebly developed tufted tubercle at posteromedial corner; posterolateral corner distinctly and acutely produced; tip slightly incised and densely setose. Tenth sternum ( Fig. 105 ) arched, anteriorly slightly elevated at middle; posterior incision extremely small and V-shaped; lateral lobes elongated and digitiform, distally incurved. Female eighth sternum ( Figs. 106–107 ) strongly sclerotized, subtriangular in lateral view, and subtrapezoidal in ventral view, posterior margin slightly incised, forming pair of obtuse processes; ninth segment ( Fig. 106 ) laterally inflated in one pair of small sac-like lobes; ninth gonocoxite valvate and membranous with one digitiform process at tip; tenth tergum short, with posterior margin medially incised, leaving one somewhat long digitiform upper and one short lower lobe.

Type materials. Holotype ɗ, CHINA: Fujian, Jiangle, Longqishan, 11.V.1999, Jian Yao ( IZCAS). Paratypes ɗ, CHINA: same data as holotype ( IZCAS); ɗ, CHINA: Fujian, Jiangle, Longqishan, 28.IV.1999, Wanyu Zhang ( IZCAS); Ψ, CHINA: Fujian, Jiangle, Longqishan, 11.V.1999, Chunmei Huang ( IZCAS); Ψ, CHINA: Fujian, Jiangle, Longqishan, 11.V.1999, Runzhi Zhang ( IZCAS); ɗ, CHINA: Fujian, Jiangle, Longqishan, 15.V.1999, Jian Yao ( IZCAS); Ψ, CHINA: Fujian, Jiangle, Longqishan, 16.V.1999, Jian Yao ( IZCAS); Ψ, CHINA: Guangxi, Jinxiu, Luoxiang, 200 m, 14.V.1999, Xuezhong Zhang ( IZCAS); ɗ Ψ, CHINA: Guangxi, Maoershan, Tongren, 350 m, 2.V.2004, Ding Yang ( CAU); 6 ɗ 10 Ψ, CHINA: Jiangxi, Jiulianshan, 400 m, VII.1986, Zuyao Liu (SEMCAS).

Etymology. The specific epithet ‘ orientalis ’ refers to the oriental distribution of this species.

Distribution. China (Fujian, Guangxi, Jiangxi).

Remarks. The new species appears to be closely related to P. acutatus in having a similar appearance, but can be easily separated by the male ninth sternum which has extremely shallow posterior incision. In P. acutatus , the male ninth sternum is deeply incised posteriorly.

Figures

FIGURES 16 – 23. Habitus of the species in the P. costalis group. 16. P. niger Yang & Yang (Holotype), male. 17. P. o r i - entalis sp. nov. (Holotype), male. 18. P. similis Yang & Yang (Holotype), male. 19. P. s i n e n s i s Yang & Yang (Holotype), male. 20. P. stigmosus sp. nov. (Holotype), male. 21. P. triangulatus sp. nov. (Holotype), male. 22. P. y a n g i sp. nov. (Holotype), male. 23. P. yunnanensis Yang & Yang (Holotype), male. Scale bars = 5 mm.

FIGURES 101 – 107. Protohermes orientalis, sp. nov. 101. Male head and pronotum, dorsal view. 102. Male genitalia, dorsal view. 103. Male genitalia, ventral view. 104. Male ninth gonostylus, caudal view. 105. Male tenth sternum, ventral view. 106. Female genitalia, lateral view. 107. Female eighth sternum, ventral view. Scale lines = 1.0 mm.