Chilocorus hauseri Weise, 1895

POORANI, J., 2023, An illustrated guide to the lady beetles (Coleoptera: Coccinellidae) of the Indian Subcontinent. Part II. Tribe Chilocorini, Zootaxa 5378 (1), pp. 1-108 : 39

Chilocorus hauseri Weise

( Figs 32 , 33 )

Chilocorus hauseri Weise, 1895a: 135 .

Chilocorus hauseri : Sicard 1913: 500; Korschefsky 1932: 243; Liu 1963: 77; Nagaraja & Hussainy 1967: 250; Pang & Mao 1979: 82; Hoáng 1983: 21; Cao et al. 1992: 156; Pang et al. 2002: 318, 2004: 28; Poorani 2002: 311; Kovář 2007: 593; Ren et al. 2009: 130; Li et al. 2018: 14 .

Diagnosis. Length: 4.20–4.45 mm; width: 3.70–4.08 mm. Form elongate oval, elytra distinctly narrowed towards apex in posterior half; dorsum strongly convex and glabrous ( Fig. 32a–c ). Head and pronotum black. Elytra ochreous yellow or reddish brown, lateral margins with black borders, almost twice as broad as those of C. circumdatus , about 2/10 th of elytral width. Abdominal postcoxal lines incomplete ( Fig. 32d ). Male genitalia ( Fig. 32e–h ) and spermatheca ( Fig. 32i ) as illustrated.

Life stages. Life stages ( Fig. 33 ) as illustrated.

Distribution. India: Restricted to eastern Himalayan region (Sikkim; West Bengal) and parts of north-eastern region (Manipur). Myanmar. China. Laos. Vietnam.

Prey/associated habitat. Hemiptera : Diaspididae : Aonidiella aurantii (Maskell) , Aonidiella orientalis (Newstead) , and Chrysomphalus aonidum (Linnaeus) infesting mulberry, rose and citrus. Collected on tea (label data). Devi (1989) and Shantibala & Singh (1991) reported it as feeding on an aphid, Aphis odinae (van der Goot) [= Toxoptera odinae (van der Goot) infesting Wendlandia glabrata ( Rubiaceae )], from an altitude of 150–500 m from Manipur and Nagaland in north-eastern India.

Seasonal occurrence. Collected during July and September-October in eastern India (label data).

Notes. More illustrations / details can be found in the following works: Nagaraja & Hussainy 1967; Ren et al. 2009.

Figures

FIGURE 32. Chilocorus hauseri Weise: a. adult, dorsal view; b. adult, lateral view; c. adult, frontal view; d. abdomen, male; e–h. male genitalia: e. tegmen, lateral view; f. tegmen, ventral view; g. penis; h. penis apex; i. spermatheca.

FIGURE 33. Chilocorus hauseri Weise, life stages: a. eggs; b. early stage larva; c. full grown larva; d. pupa; e. adult.