Neochauliodes guangxiensis Ya

Liu, Xingyue & Yang, Ding, 2005, Notes on the genus Neochauliodes from Guangxi, China (Megaloptera: Corydalidae), Zootaxa 1045, pp. 1-24 : 12-13

Neochauliodes guangxiensis Ya n g & Ya n g

( Figs. 5 , 25–27 )

Neochauliodes guangxiensis Yang & Yang, 1997: 32 .

Diagnosis. Head and prothorax orange. Wings hyaline with brown marks. Aedeagus slender and elongated. Female gonapophyses strongly elongated.

Description. Forewing length 29–36 mm, hindwing length 26–32 mm.

Head orange. Compound eyes brown, ocelli yellow with black inner margin. Antenna black. Mouthparts pale yellow; maxillary palpus and labial palpus dark, mandible with apical half brown.

Prothorax orange; meso­ and meta thorax pale brown, dorsally with lateral margins brown. Legs brown with short, dense, yellowish brown setae; tarsal claws reddish brown. Wings hyaline with brown marks; pterostigma indistinct. Forewing with intercostal area brown except for hyaline basal half; basal marks somewhat connected; median transverse band diffuse and surrounded by several small spots; apical margin with several spots along longitudinal veins. Hindwing similarly marked, but costal area entirely brown and basal half mostly hyaline. Veins pale brown. Rs 5­branched, R2 apically 3­branched, R3 and R4 curved backward at tip; 3 crossveins between R1 and Rs; M 2­branched; 1A 2­branched.

Abdomen brown. Male tenth tergum ( Fig. 25 ) in lateral view subquadrate with round apical corners. Aedeagus ( Figs. 25–26 ) strongly sclerotized, slender and elongated, in ventral view slightly narrowing toward round tip; in lateral view distinctly curved dorsad. Female eighth sternum subtrapezoidal with posterior margin prominent; tenth tergum ( Fig.

27) short, claviform, with pointed tip, directed dorsally; gonapophyses ( Fig. 27 ) slightly sclerotized, directed dorsally, and strongly elongated with slightly narrowing apex.

Material examined. Holotype ɗ, CHINA: Guangxi, Guilin, Yanshan, 1963. V.31, C.K. Yang ( CAU); 1 ɗ, CHINA: Guangxi, Jinxiu, Yonghe, 500 m, 1999. V.12, H.X. Han ( IZCAS); 1 Ψ, CHINA: Guangxi, Jinxiu, Dayaoshan, 1982. VI.14 ( CAU).

Distribution. China (Guangxi).

Remarks. This species is a member of the N. sinensis complex and seems to be closely related to N. meridionalis in having the head and prothorax entirely yellow and the aedeagus somewhat elongated. However, it can be easily separated from N. meridionalis by the narrower aedeagus and elongated gonapophyses, while in N. meridionalis the aedeagus is much wider and the gonapophyses are not elongate.

Figures

FIGURES 1 – 10. Habitus photos of the Neochauliodes species from Guangxi. 1. N. acutatus sp. nov. (Holotype). 2. N. bowringi (McLachlan), male. 3. N. fraternus (McLachlan), male. 4. N. fuscus sp. nov. (Holotype). 5. N. guangxiensis Yang & Yang (Holotype). 6. N. latus Yang, Gao & An (Holotype). 7. N. meridionalis Weele, male. 8. N. nigris sp. nov. (Holotype). 9. N. umbratus Kimmins, male. 10. N. wuminganus Yang & Yang (Holotype).

FIGURES 25 – 27. Genitalia of Neochauliodes guangxiensis Yang & Yang. 25. Male genitalia, lateral view. 26. Aedeagus, ventral view. 27. Female genitalia, lateral view.