Celyphoma quadrupla, Meng, Rui & Wang, Yinglun, 2012

Meng, Rui & Wang, Yinglun, 2012, Two new species of the genus Celyphoma Emeljanov, 1971 (Hemiptera: Fulgoromorpha: Issidae) from China, Zootaxa 3497, pp. 17-28 : 19-20

Celyphoma quadrupla , sp. nov.

( Figs 1–5 , 11–24 , 36–39 )

Description. Length, male (N=71) (including tegmen): 3.6–3.8 mm, length of tegmen: 2.4–2.6 mm; female (N=56) (including tegmen): 3.8–4.0 mm, length of tegmen: 2.6–2.8 mm.

Coloration. Body light brown with fuscous maculae ( Fig. 1 ). Vertex brown with pale median carina ( Figs 1, 2 ). Eyes dark brown. Frons light brown with pale median carina, two small light spots in middle and two dark red oblong spots above frontoclypeal suture, lateral areas pale yellow with dark brown spots ( Fig. 3 ). Clypeus pale with brown oblique stripes ( Fig. 3 ). Pronotum pale yellow suffused with numerous brown spots, and two red pits in middle ( Fig. 2 ). Mesonotum fuscous, with bright carinae. Tegmen fulvous with a subobsolete fuscous oblique fascia near middle from costal margin to posterior margin. Legs brown with dark brown stripes. Abdomen pale ventrally and dorsally.

Head and Thorax: Vertex subquadrate, anterior margin slightly convex, hind margin concave angularly, 1.4× wider at apex than length in midline ( Figs 1, 2 ). Frons 1.3× longer than widest part, 1.1× wider at widest part than at upper margin; with inverted U-shaped area at disc ( Fig. 3 ). Pronotum with anterior margin convex and posterior margin nearly straight ( Fig. 2 ). Mesonotum 3.0× wider at widest part than length at midline. Tegmen 2.3× longer than widest part, costal margin nearly parallel to sutural margin ( Figs 5 , 40 ). Spinal formula of hind leg: 6–8–2.

Male genitalia: Pygofer with hind margin slightly curved, ventral margin wide, narrowing to dorsal margin ( Fig. 38 ). Suspensorium membranous and short ( Fig. 37 ). Connective thick but faintly pigmented ( Fig. 37 ). Aedeagus very slightly U-shaped ( Figs 13 , 37, 39 ). Dorso-lateral lobes of phallobase fused dorsally, apical margin obtusely rounded and reflected upward, with one pair of long knobbed processes at apex. Ventral lobe of phallobase short, apex obtuse. Phallus sclerotized, apical portion of phallus slender in lateral view, tapering into hook and curved cephalad, with one pair of long processes which almost encircle the dorso-lateral lobe of phallobase at middle. Genital style with hind margin convex ( Fig. 38 ). Capitulum of style short, slightly narrowing apically in dorsal view, with a large lateral tooth directed ventrally ( Fig. 12 ).

Male internal reproductive system: Testes ellipsoidal, enclosed by a red sheath, each testis with eight tubeshaped testicular follicles. Vas deferens divided into two portions, the upper portion linking testis and seminal vesicle is slender, covered with yellow color sheath; the lower portion linking seminal vesicle and ejaculatory duct is white and thicker than upper portion. Seminal vesicle is slender and spiraling, with a yellow surface. Ejaculatory duct elongate but expanded at end. Accessory gland is much developed, usually coiled in the genital chamber ( Fig. 21 ).

Female genitalia: Sternum VII with apical margin strongly concave. Gonoplac slightly elevated in the median area, the third gonoplac lobes faintly sclerotized and pigmented, indistinctly forked in dorsal view ( Figs 16, 17 ). Posterior connective lamina of gonapophyses IX strongly sclerotized at basal half and faintly sclerotized at apical half, lateral fields flat and narrow, median field with single lobe ( Figs 15, 18 ). Anterior connective lamina of gonapophyses VIII with a digitiform appendage at base, with three teeth in apical group, and three large teeth with carinae in lateral group ( Figs 19, 20 ).

Female internal reproductive system: Both bursa copulatrix and vagina with double membrane. Bursa copulatrix pouched at apical half and tubular at basal half. Posterior vagina thick and straight. Relatively, anterior vagina thinner and curved. Oviductus lateralis long, with numerous elongate glandula oviducti lateralis ( Fig. 22 , see arrow) at base. Oviductus communis short. Ovary small with four ovarioles. Spermatheca well-developed, ductus receptaculi short, diverticulum ductus long and in capsule form, spermathecal pump yellow and smaller than diverticulum ductus, glandula apicalis short and thin ( Figs 22, 23 ).

Eggs: Egg orangish and oval, length 0.88 mm –1.00 mm, 2.1 x longer than widest part. Respiratory horn white ( Fig. 24 ).

Material examined. Holotype: 3, Luo Mountain, Tongxin County, Ningxia Hui Autonomous Region, China, 22 August 2011, coll. Silong Xu. Paratypes: 22 3, 16 Ƥ, same data as holotype; 11 3, 7 Ƥ, 21 July 1980, coll. Jikun Yang; 16 3, 21 July 1980, coll. Fasheng Li; 3 3, 21 July 1980, coll. Chunhua Yang; 3 3, 12 Ƥ, 1988, coll. Xincheng Li; 1 3, 1 Ƥ, Haiyuan County, 22 August 1986, coll. Guodong Ren; 1 Ƥ, Shuichongshi, Haiyuan County, 25 August 1986, coll. Gongdong Ren, Ho-lan Mountain, Ningxia Hui Autonomous Region, China. 12 3, 15 Ƥ, Halawu, Ho-lan Mountain, 8 August 2011, coll. Silong Xu; 2 3, 4 Ƥ, Tuyouqi, 23 July 1978, coll. Heming Chen, Inner Mongolia Autonomous Region, China.

Remarks. This species resembles C. modesta Lukyanova, 1992 , but differs from the latter in the following: 1) tegmen fulvous with a subobsolete fuscous oblique fascia near middle from costal margin to posterior margin (tegmen opaque, with a light stripe in the middle in C. modesta ); 2) apical margin of male anal tube straight (convex in C. modesta ); 3) aedeagus with one pair of curved median ventral processes, almost encircling the phallobase (a pair of straight ventral processes in C. modesta ).

Etymology. The specific epithet is derived from the Latin root prefix “quadri-”, referring to the aedeagus with four processes.

Figures

FIGURES 1 – 10. Celyphoma quadrupla, sp. nov. (1 – 5) and C. bifurca, sp. nov. (6 – 10) 1. adult, dorsal view; 2. head and thorax, dorsal view; 3. frons and clypeus; 4. wing; 5. adult, lateral view. 6. head and thorax, dorsal view; 7. adult, dorsal view; 8. frons and clypeus; 9. wing; 10. adult, lateral view. Scale bars = 1 mm.

FIGURES 11 – 20. Celyphoma quadrupla, sp. nov. 11. male anal tube, dorsal view; 12. capitulum, dorsal view; 13. aedeagus, dorsal view; 14. female anal tube, dorsal view; 15. gonapophysis IX and gonaspiculum bridge, dorsal view; 16. gonoplac, dorsal view; 17. gonoplac, left view; 18. gonapophysis IX and gonaspiculum bridge, left view; 19. gonocoxa VIII and gonapophysis VIII, left view; 20. gonocoxa VIII and gonapophysis VIII, ventral view. Scale bars = 0.1 mm.

FIGURES 21 – 24. Celyphoma quadrupla, sp. nov. 21. male reproductive system; 22. female reproductive system; 23. bursa copulatrix; 24. egg, lateral view.

FIGURES 36 – 43. Celyphoma quadrupla, sp. nov. (36 – 39) and C. bifurca, sp. nov. (40 – 43) 36. tegmen; 37. aedeagus, left view; 38. male genitalia, left view; 39. aedeagus, ventral view. 40. tegmen; 41. aedeagus, ventral view; 42. aedeagus, left view; 43. male genitalia, left view. Scale bars = 0.5 mm.