Agnesiella Dworakowska, 1970

Wang, Junjie, Liu, Jialing, Zhang, Yalin & Huang, Min, 2024, Eight new species and four new records of the leafhopper genus Agnesiella Dworakowska (Hemiptera: Cicadellidae: Typhlocybinae) from China, Zootaxa 5537 (1), pp. 49-75 : 50-52

Agnesiella Dworakowska, 1970

Agnesiella Dworakowska, 1970: 211

Type species: Typhlocyba aino Matsumura, 1932 , by original designation.

Description. Body with ground color ivory to brownish. Vertex and face junction usually with 2 sesame-like whitish patches; vertex usually with a pair of roundish black patches near eye inner margins. Pronotum usually with an oval dark longitudinal patch near center of anterior margin and 1 or 2 pairs of dark patches laterally. Forewing basal 2/3 generally with brownish patches, patches at distal end of ScP+RA and MP''+CuA' veins, and 3rd apical cell usually brownish; brochosome area semi-transparent to reddish-brown with patches at both ends brownish to black.

Crown obtusely protruding medially, narrower than pronotum with length about 1/2 that of pronotum, and with anterior and posterior margins approximately parallel. Pronotum with anterior margin arched and posterior margin straight. Apical half of forewing narrowing gradually, with RP and MP' veins confluent at the base and 3rd apical cell subtriangular. Hind wing transparent with R and MP veins confluent terminally.

Abdominal 2S apodemes developed and usually reaching 5th or 6th abdominal sternite. Male pygofer generally with 2 setal groups, posterior margin generally with digitiform process extended dorsad or backwards and a small protrusion bearing small rigid setae on upper part. Length of genital valve approximately 1/5 to 1/4 length of subgenital plate. Subgenital plate club-shaped, usually with slightly expanded distal end, outer margin usually narrowed subapically with a protrusion generally bearing few peg-like setae; apical half usually with small rigid setae and fine setae. Style usually with subapical processes varying in length, number and angle; caudal half with row of microsetae on outer side and row of sensilla pores on inner side. Connective Y-shaped with stem well developed. Aedeagal shaft slender, usually with tooth-like end curling inwards and lamellar or digitiform ventral processes; gonopore apical.

This genus resembles Linnavuoriana Dlabola, 1958 in having paired spots on the head and pronotum and lacking macrosetae on the subgenital plate, but differs in having a pair of black submarginal spots on the vertex and one or more spinelike processes on the male pygofer.

Distribution. Palaearctic and Oriental regions.

Key to males of the genus Agnesiella

1. Setae not clustered on pygofer side.......................................................... A. ( Agnesiella ), 2

- Setae clustered and usually divided into 2 groups on pygofer side................................ A. (Draberiella), 14

2. Pygofer side with a bifurcate process............................................ A. marginata Dworakowska, 1994

- Pygofer side with an unbranched process.................................................................. 3

3. Pygofer process without setae................................................... A. polita Huang & Zhang, 2022

- Pygofer process with setae.............................................................................. 4

4. Style without subapical protrusion.............................................. A. recurva Huang & Zhang, 2022

- Style with subapical protrusion.......................................................................... 5

5. Style with a subapical protrusion......................................................................... 6

- Style with 2 subapical protrusions........................................................................ 8

6. Style with a subapical process directed away from apical part ( Fig. 95 )............ A. hamaculeata Wang & Huang sp. nov.

- Style with a subapical process forming an obtuse angle with apical part.......................................... 7

7. Pygofer with a longitudinal sclerotized band near posterior margin ( Fig. 100 )......... A. nigroflava Wang & Huang sp. nov.

- Pygofer without a longitudinal sclerotized band near posterior margin....................... A. aino ( Matsumura, 1932)

8. Style with caudal apex angle with upper subapical protrusion nearly equal to 90°........... A. juglandis Chou & Ma, 1981

- Style with caudal apex angle with upper subapical protrusion slightly less than 180°................................ 9

9. Aedeagal shaft with incision on dorsal margin subapically............................... A. buysi Dworakowska, 1982

- Aedeagal shaft without incision on dorsal margin subapically................................................. 10

10. Pronotum with blackish patches on central area near posterior margin........................................... 11

- Pronotum without blackish patches on central area near posterior margin........................................ 13

11. Abdominal apodemes extending to end of 5th abdominal sternite....................... A. nitobella ( Matsumura, 1932) - Abdominal apodemes extending to 6th abdominal sternite.................................................... 12

12. Forewing with patches separately at basal and apical cell areas....................... A. lyraeformis ( Matsumura, 1932)

- Forewing with patches separately at basal, middle, and cross-veins areas............. A. matsumurai Dworakowska, 1982

13. Pronotum with pair of lateral blackish patches................................... A. protensa Huang & Zhang, 2022

- Pronotum with 2 pairs of lateral blackish patches..................................... A. giranna ( Matsumura, 1932)

14. Pygofer process arising from posteroventral angle.......................................................... 15

- Pygofer process arising from posterior margin............................................................. 36

15. Pygofer process with 2 branches........................................................................ 16

- Pygofer process unbranched............................................................................ 17

16. Style with a subapical process measuring approximately half the length of caudal apex......... A. rita Dworakowska, 1982

- Style with subapical process very small............................................. A. fatima Dworakowska, 1994

17. Style with 2 subapical protrusions................................................ A. roxana Dworakowska, 1982

- Style with 1 subapical protrusion........................................................................ 18

18. Aedeagal shaft without distinct ventral process............................................................. 19

- Aedeagal shaft with distinct ventral process............................................................... 20

19. Forewing with V-shaped patches in the middle......................................... A. innota Yan & Yang, 2019

- Forewing with patches separately at the basal and cross-vein areas..................... A. glabra Huang & Zhang, 2022

20. Ventral process of aedeagal shaft with 2 branches........................................................... 21

- Ventral process of aedeagal shaft with 1 branch............................................................ 26

21. Style with a subapical protrusion nearly as long as caudal apex................................................ 22

- Style with a subapical protrusion distinctly shorter than caudal apex............................................ 23

22. Two branches of ventral process of aedeagal shaft with a long stalk.......................... A. furca Yan & Yang, 2019

- Two branches of ventral process of aedeagal shaft without a long stalk.................. A. mitrata Huang & Zhang, 2022

23. Two branches of ventral process of aedeagal shaft arising from plate-like posterior extension in lateral view............ 24

- Two branches of ventral process of aedeagal shaft arising directly from shaft in lateral view......................... 25

24. Pygofer process closely appressed to posterior margin of pygofer......................... A. azra Dworakowska, 1994

- Pygofer process not closely appressed to posterior margin of pygofer ( Fig. 80 )......... A. bupa Dworakowska, 1994 n. rec.

25. Ventral process of aedeagal shaft with 2 backward-curved branches ( Fig. 138 ).......... A. hastata Wang & Huang sp. nov.

- Ventral process of aedeagal shaft with 2 branches curved toward the shaft....................... A. aldera Thapa, 1984

26. Ventral process of aedeagal shaft arising from base of the shaft ( Fig. 125 )............. A. elongata Wang & Huang sp. nov.

- Ventral process of aedeagal shaft arising from apical half or middle of the shaft................................... 27

27. Aedeagal shaft with a distinct plate-like expansion dorsally on subapical part..................................... 28

- Aedeagal shaft without a distinct plate-like expansion dorsally on subapical part.................................. 31

28. Aedeagal shaft with end of ventral process curved ventrally................................................... 29

- Aedeagal shaft with end of ventral process curved toward the shaft............................................. 30

29. Aedeagal shaft with a short digitiform end of ventral process.............................. A. erosa Yan & Yang, 2016

- Aedeagal shaft with a long digitiform end of ventral process........................... A. gaura Huang & Zhang, 2022

30. Ventral process of aedeagal shaft with a digitiform end.............................. A. stipitata Huang & Zhang, 2022

- Ventral process of aedeagal shaft with a short horn-like end............................. A. lata Huang & Zhang, 2022

31. Ventral process of aedeagal shaft with serrated posterior margin...................... A. eleganta Huang & Zhang, 2022

- Ventral process of aedeagal shaft with smooth posterior margin................................................ 32

32. Aedeagal shaft with a short horn-like ventral process at the middle...................... A. magda Dworakowska, 1982

- Aedeagal shaft with a long digitiform ventral process directed ventrally......................................... 33

33. Pygofer without setae near basoventral angle............................................ A. distincta Ahmed, 1985

- Pygofer with setae near basoventral angle................................................................. 34

34. Pygofer side without long fine setae near posterior margin................................ A. latusa Yan & Yang, 2016

- Pygofer side with long fine setae near posterior margin...................................................... 35

35. Aedeagal shaft with subapical ventral margin irregularly undulated........................ A. sinuata Yan & Yang, 2019

- Aedeagal shaft with subapical ventral margin not undulated......................... A. apiculata Huang & Zhang, 2022

36. Pygofer process multi-branched......................................................................... 37

- Pygofer process unbranched............................................................................ 40

37. Pygofer process with 3 branches............................................. A. tridigitata Huang & Zhang, 2022

- Pygofer process with 2 branches........................................................................ 38

38. Ventral process of aedeagal shaft with 2 branches ( Fig. 119 )........................ A. chelata Wang & Huang sp. nov.

- Ventral process of aedeagal shaft plate-like................................................................ 39

39. Ventral process of aedeagal shaft with smooth posterior margin........................... A. lidia Dworakowska, 1977

- Ventral process of aedeagal shaft with undulated posterior margin ( Fig. 70 )......... A. kamala Dworakowska, 1982 n. rec.

40. Ventral process of aedeagal shaft multi-branched........................................................... 41

- Ventral process of aedeagal shaft unbranched.............................................................. 53

41. Ventral process of aedeagal shaft with 3 branches........................................................... 42

- Ventral process of aedeagal shaft with 2 branches........................................................... 45

42. Two outer branches of ventral process of aedeagal shaft with common stem separate from innermost branch............ 43

- Three branches of ventral process of aedeagal shaft each arising separately from common stem...................... 44

43. Apex of ventral process of aedeagal shaft with innermost branch reaching apex of the shaft ( Fig. 75 ).......................................................................................... A. savita Dworakowska, 1982 n. rec.

- Apex of ventral process of aedeagal shaft with innermost branch reaching subapical part of the shaft................................................................................................. A. irma Dworakowska, 1977

44. Base of ventral process of aedeagal shaft at near the base of shaft................ A. longisagittata Huang & Zhang, 2022

- Base of ventral process of aedeagal shaft at near the middle of shaft..................... A. lavanya Dworakowska, 1982

45. All branches of ventral process of aedeagal shaft directed dorsally............................................. 46

- Two branches of ventral process of aedeagal shaft separately directed dorsally and ventrally......................... 48

46. Apex of ventral process of aedeagal shaft with innermost branch extending beyond apex of the shaft................................................................................................ A. olena Dworakowska, 1977

- Apex of ventral process of aedeagal shaft with innermost branch reaching subapical part of the shaft.................. 47

47. Ventral process of aedeagal shaft with lower branch near middle ( Fig. 112 ).......... A. biprotrusa Huang & Zhang sp. nov.

- Ventral process of aedeagal shaft with lower branch near base......................... A. exigua Huang & Zhang, 2022

48. Aedeagal shaft with middle part of dorsal margin serrated................................ A. ela Dworakowska, 1977

- Aedeagal shaft with dorsal margin smooth................................................................ 49

49. Pygofer with a long digitiform pygofer process............................................................. 50

- Pygofer with a short horn-like pygofer process............................................................. 51

50. Ventral process of aedeagal shaft with a lower branch curved toward the side of shaft.......... A. digita Yan & Yang, 2019

- Ventral process of aedeagal shaft without a lower branch curved toward the side of shaft ( Figs 64, 65 )..................................................................................... A. quinquemaculata ( Distant, 1918) n. rec.

51. Ventral process of aedeagal shaft with a lower branch curved toward the left side of shaft...... A. xantha Yan & Yang, 2016

- Ventral process of aedeagal shaft with a lower branch curved toward the right side of shaft.......................... 52

52. Ventral process of aedeagal shaft with an upper branch slightly shorter than the lower branch................................................................................................... A. alni Sharma & Malhotra, 1981

- Ventral process of aedeagal shaft with an upper branch distinctly shorter than the lower branch..................................................................................................... A. farida Dworakowska, 1994

53. Branch of ventral process of aedeagal shaft directed ventrally.................. A. jammuensis Sharma & Malhotra, 1981

- Branch of ventral process of aedeagal shaft directed dorsally.................................................. 54

54. Aedeagal shaft with apex of ventral process reaching subapical part of shaft ( Fig. 145 )................................................................................................ A. singuliprotrusa Huang & Zhang sp. nov.

- Aedeagal shaft with apex of ventral process reaching apex of shaft............................................. 55

55. Pygofer with end of pygofer process curved ventrally ( Fig. 129 )..................... A. galeata Wang & Huang sp. nov.

- Pygofer with end of pygofer process curved dorsally.................................... A. decorata ( Ghauri, 1974)

Figures

FIGURES 91–97. A. (A.) hamaculeata Wang & Huang sp. nov. 91. abdominal apodemes; 92. male pygofer and anal tube, lateral view; 93. hind part of male pygofer, lateral view; 94. style, connective, subgenital plate and sternite IX, dorsal view; 95. caudal end of style, lateral view; 96. aedeagus, lateral view; 97. aedeagus, posterior view.

FIGURES 98–105. A. (A.) nigroflava Wang & Huang sp. nov. 98. abdominal apodemes; 99. male pygofer and anal tube, lateral view; 100. hind part of male pygofer, lateral view; 101. style, connective, subgenital plate and sternite IX, dorsal view; 102. end of subgenital plate, lateral view; 103. caudal end of style, lateral view; 104. aedeagus, lateral view; 105. aedeagus, posterior view.

FIGURES 77–81. A. (D.) bupa Dworakowska, 1994 n. rec. 77. abdominal apodemes; 78. male pygofer, lateral view; 79. style, connective, subgenital plate and sternite IX, dorsal view; 80. aedeagus, lateral view; 81. aedeagus, posterior view.

FIGURES 134–139. A. (D.) hastata Wang & Huang sp. nov. 134. abdominal apodemes; 135. male pygofer, lateral view; 136. style, connective, subgenital plate and sternite IX, dorsal view; 137. connective, dorsal view; 138. aedeagus, lateral view; 139. aedeagus, posterior view.

FIGURES 121–126. A. (D.) elongata Wang & Huang sp. nov. 121. abdominal apodemes; 122. male pygofer, lateral view; 123. style, connective, subgenital plate and sternite IX, dorsal view; 124. connective, dorsal view; 125. aedeagus, lateral view; 126. aedeagus, posterior view.

FIGURES 114–120. A. (D.) chelata Wang & Huang sp. nov. 114. abdominal apodemes; 115. male pygofer, lateral view; 116. style, connective, subgenital plate and sternite IX, dorsal view; 117. end of subgenital plate, dorsal view; 118. style, lateral view; 119. aedeagus, lateral view; 120. aedeagus, posterior view.

FIGURES 66–71. A. (D.) kamala Dworakowska, 1982 n. rec. 66. abdominal apodemes; 67. male pygofer, lateral view; 68. style, connective, subgenital plate and sternite IX, dorsal view; 69. connective, dorsal view; 70. aedeagus, lateral view; 71. aedeagus, posterior view.

FIGURES 72–76. A. (D.) savita Dworakowska, 1982 n. rec. 72. abdominal apodemes; 73. male pygofer, lateral view; 74. style, connective, subgenital plate and sternite IX, dorsal view; 75. aedeagus, lateral view; 76. aedeagus, posterior view.

FIGURES 106–113. A. (D.) biprotrusa Huang & Zhang sp. nov. 106. abdominal apodemes; 107. male pygofer, lateral view; 108. hind part of male pygofer, lateral view; 109. style, connective, subgenital plate and sternite IX, dorsal view; 110. end of subgenital plate, dorsal view; 101. caudal end of style, ventral view; 112. aedeagus, lateral view; 113. aedeagus, posterior view.

FIGURES 61–65. A. (D.) quinquemaculata (Distant, 1918) n. rec. 61. abdominal apodemes; 62. male pygofer, lateral view; 63. style, connective, subgenital plate and sternite IX, dorsal view; 64. aedeagus, lateral view; 65. aedeagus, posterior view.

FIGURES 140–146. A. (D.) singuliprotrusa Huang & Zhang sp. nov. 140. abdominal apodemes; 141. male pygofer, lateral view; 142. style, connective, subgenital plate and sternite IX, dorsal view; 143. end of subgenital plate, dorsal view; 144. caudal end of style, dorsal view; 145. aedeagus, lateral view; 146. aedeagus, posterior view.

FIGURES 127–133. A. (D.) galeata Wang & Huang sp. nov. 127. abdominal apodemes; 128. male pygofer and anal tube, lateral view; 129. hind part of male pygofer, lateral view; 130. style, connective, subgenital plate and sternite IX, dorsal view; 131. caudal end of style, lateral view; 132. aedeagus, lateral view; 133. aedeagus, posterior view.