Chiridopsis irrorata Spaeth, 1917

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: 32-34

publication ID

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

publication LSID

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

persistent identifier

http://treatment.plazi.org/id/03A987E8-FFAF-FFDF-FF15-D998FEADFD80

treatment provided by

Plazi

scientific name

Chiridopsis irrorata Spaeth, 1917
status

 

Chiridopsis irrorata Spaeth, 1917 

( figs 7View FIGURE 7, 62–64View FIGURES 62 – 67)

Chirida irrorata Spaeth, 1917: 443  .

Chiridopsis irrorata: Spaeth, 1924: 351  ; Borowiec, 1985 a: 242, 1999: 299.

Description. Le: 5.90–7.90 mm, Wi: 4.70–6.00 mm, Lp: 2.20–2.90 mm, Wp: 3.55–4.40 mm, Le/Wi: 1.22–1.32, Wp/Lp: 1.54–1.67.

Ground colour of dorsum rusty-yellow to rusty ( figs 62–64View FIGURES 62 – 67). Pronotum on disc and lateral parts of explanate margin usually with darker rusty spots of diffused borders. Elytral disc with darker rusty to rusty-brown marble pattern of diffused borders, explanate margin unicolourous rusty-yellow to rusty-brown but often with darker rusty humeral and postero-lateral spots of various size Head rusty-yellow to rusty, thorax rusty-yellow to rusty but often with darker rusty-brown infuscations, abdomen rusty-yellow to rusty black but often in the middle with rustybrown spots of diffused borders. Legs rusty-yellow to rusty, apex of femora sometimes slightly infuscate. Antennal segments 1–8 yellow to rusty-yellow, segments 9–11 more or less infuscate.

Pronotum elliptical ( figs 62, 63View FIGURES 62 – 67), with maximum width slightly in front of the middle, anterior margin softly convex, sides rounded, no basal corners. Surface of disc often with small lateral impressions, impunctate, shiny. Explanate margin broad, impunctate, shiny, semi-transparent with more or less visible honeycomb structure.

Base of elytra much wider than base of pronotum ( figs 62, 63View FIGURES 62 – 67), humeral angles distinctly protruding anterad, subrounded. Disc softly convex in profile ( fig. 64View FIGURES 62 – 67), usually with shallow postscutellar and principal impressions. Punctation fine to moderate but often in impressed hole, on sides coarser than on top of disc, arranged in regular rows, on sides of disc rows often impressed, on top of disc distance between punctures from as wide as to five times wider than puncture diameter, on sides of disc punctures denser with distance between punctures from sligtly narrower to twice wider than puncture diameter. Marginal row distinct, its punctures as coarse as punctures in lateral rows. Intervals flat, on top of disc twice to thrice, on sides as wide as to twice wider than rows, marginal interval in humeral half twice wider than submarginal one, no humeral or lateral folds. Explanate margin moderately broad, moderately declivous, in the widest part five times narrower than disc, below humerus with few additional coarse punctures, surface with shallow and moderately dense punctation, slightly irregular, shiny, semitransparent with more or less visible honeycomb structure.

Eyes very large, gena obsolete. Clypeus very broad, approximately 1.5 times as wide as long. Clypeal grooves very fine, in basal half almost invisible, running close to margin of eye, on top converging in broad arch, surface of clypeus moderately convex, microreticulate but shiny with few small, setose punctures. Labrum distinctly emarginate to 1/4 length. Antennae slim, segments 9–10 approximately 1.6 times as long as wide. Length ratio of antennal segments: 100:45:79:81:71:52:60:55:57:57:100. Segment 3 approximately 1.7 times as long as segment 2 and only slightly shorter than segment 4.

Prosternum broad in the middle, strongly expanded apically, area between coxa canaliculate with mirror surface and only few small setose punctures, expanded apex flat, with median circular impression and partly impressed lateral lobes, shiny, with few small setose punctures.

Claws with small basal tooth, apex of last tarsomere expanded, dentiform thus claws appear more dentate than in reality.

Distribution. Africa south of Zaire ( fig. 7View FIGURE 7).

Remarks. Chiridopsis irrorata  with Ch. tanzaniensis  form a very distinct group of species with unique elytral pattern ( figs 62–67View FIGURES 62 – 67). Both species have rusty-yellow to rusty ground-colour of pronotum and elytra, without black spots, stripes or bands but elytral punctures with broad rusty-brown areolae, partly coalescent, thus pattern appears marbled. Chiridopsis irrorata  distinctly differs in surface of explanate margin of elytra slightly irregular, below humerus with a few additional coarse punctures while in Ch. tanzaniensis  surface of explanate margin of elytra is completely smooth, regular, without any additional coarse punctures below humerus.

Types examined. 8 syntypes: Zambesi, 1878, 8, Bradshaw (ITZ); 1 syntype: [ TANZANIA] Manjoni ( ZMHUAbout ZMHU). Other specimens examined. BOTSWANA: Kasane, 1 I 1994, 3, M. Snižek (MS). 

MALAWI: Chikwawa env., 50 km SW Blantyre, 20 XII 2001, 2, F. & L. Kantner (FK); S Prov., Nkopola Forest Res., 500 m, 20–21 I 1985, 7, Bellamy et al. (TM, EG, DBET). 

MOZAMBIQUE: Porto Amelia , V 1959, 1, F. Gomes (TM). 

SOUTH AFRICA: Transvaal , Punda Milia, Kruger P., 22 II 1969, 2, R.T. Simon-Thomas (ITZ). 

TANZANIA: Iringa Mts., IV 1992, 1, Werner (DS)  ; Morogoro, I 1963, 2, E. Haaf (1 NHMBAbout NHMB, 1 LSCAbout LSC)  ; Usandawi , XII 1929, 1, H. Fliegner ( ZMHUAbout ZMHU)  .

ZAMBIA: Kashitu, N of Broken Hill, IX 1915, 1, H.C. Dollman ( BMNH)  ; Livingstone, 21 I 1947, 10, W. Eichler (IZPAS, DBET); Lonely, 27 IV 1913, 1, H. Swale (BMNH); Lukendo, 21 X 1913, 1, H. C. Dollman (BMNH); Mwengwa, 27°40′E, 13°00′S, 1 V 1913, 1, 7 V 1913, 10, 15 V 1913, 1, 1 VIII 1914, 1, 2 VIII 1914, 3, 17 VIII 1914, 2, H.C. Dollman ( BMNH, 4 LS); Victoria Falls , 16 II 1913, 4, H.C. Dollman ( BMNH), 6–13 XI 1938, 1, D.L. Uyttenboogaart (ITZ).GoogleMaps 

ZIMBABWE: Hwange National Park , Sinamatella, 18.35 S 26.18 E, 1100 m., 16 III 2000, 1, R. Beenen (RB); Kariba, 1965, 1, H. Mathes ( DBET)GoogleMaps  ; Rukomechi , Game Res. Marangora, 550 m, 6–7 II 1987, 3, W. Wittmer ( NHMBAbout NHMB)  .

ZMHU

Zoologisches Museum der Humboldt Universitaet

NHMB

Naturhistorisches Museum, Basel

LSC

Lyndon State College

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Chrysomelidae

Genus

Chiridopsis

Loc

Chiridopsis irrorata Spaeth, 1917

Świ, Jolanta 2017

2017
Loc

Chiridopsis irrorata: Spaeth, 1924 : 351

Borowiec 1985: 242Spaeth 1924: 351

1985
Loc

Chirida irrorata

Spaeth 1917: 443