Chiridopsis picturata Spaeth, 1939

Świ, Jolanta, 2017, A monograph of the Afrotropical Cassidinae (Coleoptera: Chrysomelidae). Part 4. Revision of the genus Chiridopsis Spaeth, Zootaxa 4316 (1), pp. 1-85 : 50

publication ID

https://doi.org/ 10.11646/zootaxa.4316.1.1

publication LSID

lsid:zoobank.org:pub:B38Feccf-8Ca0-43F8-Ae1C-Bea04F547E59

DOI

https://doi.org/10.5281/zenodo.6004102

persistent identifier

https://treatment.plazi.org/id/03A987E8-FF81-FFCF-FF15-DBF3FC53F99A

treatment provided by

Plazi

scientific name

Chiridopsis picturata Spaeth, 1939
status

 

Chiridopsis picturata Spaeth, 1939 View in CoL

( figs 15 View FIGURE 15 , 18 View FIGURES 17 – 19 , 94, 95 View FIGURES 94 – 101 )

Chiridopsis picturata Spaeth, 1939: 21 View in CoL ; Borowiec, 1999: 302.

Description. Le: 6.10 mm, Wi: 4.10 mm, Lp: 2.25 mm, Wp: 3.55 mm; Le/Wi: 1.49, Wp/Lp: 1.56. Body elongateoval.

Pronotum yellow ( figs 94, 95 View FIGURES 94 – 101 ), disc with four black spots: elongate stripe before scutellum, elliptical in front of median stripe, and square on sides. Scutellum black. Elytra yellow with black suture. Each elytron with 7–8 black spots: 5 along sides, 1 in the middle of anterior margin, 2 along middle of disc, first larger in 1/4, second small in 2/ 3 length of disc; sometimes posterior median spot obsolete, or suture in 2/3 length with narrow spot, slightly reaching behind black sutural margin. Clypeus black, thorax and abdomen mostly black, only abdominal sternites with yellow margins. Legs and antennae yellow.

Pronotum regularly elliptical ( fig. 94 View FIGURES 94 – 101 ), approximately 1.5 times wider than long, with maximum width slightly behind middle, sides rounded. Disc moderately convex, microreticulate but smooth and glabrous. Explanate margin very broad, almost horizontal, smooth and glabrous.

Scutellum triangular, impunctate. Base of elytra distinctly wider than pronotum ( fig. 94 View FIGURES 94 – 101 ), humeri moderately protruding anterad, angulate, margin behind humeral angle not emarginate. Disc moderately, regularly convex ( fig. 95 View FIGURES 94 – 101 ), with top of convexity in 1/3 length, without impressions. Punctation regular, very fine, especially on slope. Additional punctures along sutural rows disturb regularity of rows. Punctures in marginal row approximately twice coarser than on sides of disc. Intervals flat, in sutural half of disc several times, in lateral half of disc approximately twice wider than rows, their surface smooth and glabrous. Explanate margin narrow, in the widest part approximately 3.5 times narrower than width of each disc, distinctly declivous, its surface glabrous, in side-light appears shallowly punctate.

Clypeus broad ( fig. 18 View FIGURES 17 – 19 ), approximately 1.4 times wider than long, slightly convex, along whole length with distinct median groove; deep clypeal lines converging in triangle with blunt top. Surface of clypeal plate microreticulate, only slightly glabrous. Antennal grooves deep and long. Antennae slim, extending behind basal margin of pronotum by two segments, segments 9–10 slightly longer than wide, segment 3 approximately 1.6 times as long as segment 2, segment 4 approximately 1.2 times as long as segment 3.

Prosternal process moderately expanded apically, its surface regular. Prosternal collar moderately long, slightly shorter than length of third antennal segment, on sides distinctly angulate.

Claws with large basal tooth.

Distribution. Kenya and Tanzania ( fig. 15 View FIGURE 15 ).

Remarks. Its dorsal pattern ( figs 94, 95 View FIGURES 94 – 101 ) is similar to that of Ch. tessellata ( figs 100, 101 View FIGURES 94 – 101 ) but Ch. picturata differs in prosternal collar distinctly angulate on sides. In Ch. picturata suture is almost completely black while in Ch. tessellata suture is mostly or completely yellow. Some forms of Ch. aubei ( fig. 40 View FIGURES 37 – 42 ), especially populations from Quitondo in Angola, have similar pattern to Ch. picturata but differ in prosternal collar not angulate on sides.

Types examined. Holotype and paratype: [ KENYA] Makuyu, I–II 1937, C.D. Knight (holotype in BMNH, paratype in MM).

Other specimen examined. TANZANIA: Burigi, 16 V 1954, 1 ( DBET).

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Chrysomelidae

Genus

Chiridopsis

Loc

Chiridopsis picturata Spaeth, 1939

Świ, Jolanta 2017
2017
Loc

Chiridopsis picturata

Borowiec 1999: 302
Spaeth 1939: 21
1939
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