Kingsolverius malaccanus ( Pic, 1913 )

You, Li, Jianjun, Guo, Prena, Jens & Runzhi, Zhang, 1913, Kingsolverius malaccanus (Pic, 1913) (Coleoptera: Chrysomelidae: Bruchinae), New to China and a Key to the Chinese Genera of Bruchini, The Coleopterists Bulletin 68 (1), pp. 97-102 : 97-102

Kingsolverius malaccanus ( Pic, 1913)

Kingsolverius malaccanus ( Pic, 1913)

Bruchus malaccanus Pic, 1913: 8 Kingsolverius gibbicollis Borowiec,1987:147 (synonym)

Diagnosis. Kingsolverius malaccanus is small and almost black. It differs from all other species

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18) Ovipositor, ventral view; 19) Apex of coxite with stylus; 20) Sternite VIII; 21) Spermatheca. Scale bars = 0.5 mm. by the strongly gibbous pronotum. The hind femur is bicarinate ventrally and has one minute spine on the inner (proximal) carina. Species of Callosobruchus Pic are similar and may be closely related but have spines on both carinae.

Redescription. Size: Body length 2.4–2.6 mm; width 1.5–1.7 mm. Color: Integument black, antennal articles 1–3 and fore legs brown ( Figs. 1, 2 ). Vestiture of white, gray, and brown setae conspicuous, especially white setae on posterior side of pronotal gibbosity, scutellum, ventrites, and pygidium. Four gray spots in front of pronotal gibbosity ( Fig. 4 ). Head: Short ( Fig. 3 ); frontal carina present. Eyes rather flat, emarginate to 2/5 length. Postocular lobe absent ( Fig. 3 ). Antennae serrate, extending to humeral callus, not sexually dimorphic. Thorax: Campaniform, strongly gibbous at junction with scutellum ( Figs. 2, 4 ). Scutellum elongate. Elytra: Quadrate, humeral callus distinct, striae indistinct. Striae 3 and 6 and 4 and 5 joined posteriorly. Abdomen: Pygidium large (W/L = 0.82) ( Fig. 5 ). Last sternite emarginate up to base in male ( Fig. 6 ), not emarginate in female ( Fig. 7 ). Legs: Fore and middle legs slen- der; hind femur strongly incrassate, bicarinate ventrally, internal carina with 1 minute spine ( Figs. 8, 9 ). Hind tibia straight, mucronate. Male genitalia: Median lobe rather elongate ( Figs. 10, 11 ), apex pointed; internal sac basally with 2 rows of sharp, slender spines and further distally with many minute, dense denticles ( Fig. 16 ); subdistally with 2 small patches of minute denticles and diamondshaped patch of dense, blunt spines ( Fig. 15 ). Lateral lobes rather elongate, tape-like in basal 2/3, cleft to nearly 1/4 their length ( Fig. 12 ). Sternite VIII rounded (W/L = 0.60) ( Fig. 13 ), pubescent apically; spiculum gastrale Y-shaped ( Fig. 14 ). Female genitalia: Ovipositor 2X longer than wide, weakly sclerotized ( Figs. 17, 18 ). Stylus with 2 short setae ( Fig. 19 ). Sternite VIII Y-shaped ( Fig. 20 ). Spermatheca C-shaped, collum short, ramus and nodulus reduced ( Fig. 21 ).

Distribution. The species occurs in the Oriental Region and has been found in Bhutan, China (Yunnan, Hainan), India, Malaysia, and Vietnam.

Host. Unknown.

Material Examined. CHINA: 1♂ Xiaomengyang District (N 22.49, E 100.89), Yunnan Province, alt. 810 m, 30.iii.1957 , LIU Da-Hua leg., IOZ(E) 632542; 3♂ 1♀ Menglunzhen, Xishuangbanna (N 21.56, E 101.14), Yunnan Province, alt. 580 m, 30.iii.1994 , Yang Long-Long leg., IOZ(E)632524– 632527; 1 ♀ Hainan Province, alt. 640 m, 12.iv.1980, WANG Shu-Yong leg., IOZ(E)1501047; 1 ♂ Wuzhishan Mountain (N 18.88, E 109.66), Hainan Province, alt. 732 m, 9.xii.2007, WANG Rong- Rong leg., IOZ(E)1854536; 1♀ Wuzhishan Mountain (N 18.90, E 109.69), Hainan Province, alt. 997 m ,

28.xi.2009, HUANG Xin-Lei leg, IOZ(E)1879633; 1 ♀ Yingge Ridge (N 19.08, E 109.50), Hainan Province, alt. 525 m , 25.xi.2009, ZHANG Kui-Yan leg, IOZ(E)1879625. New country record .

KEY TO THE GENERA OF BRUCHINI IN CHINA

The following key includes all established genera known to occur in China. Quarantine interceptions of other genera are excluded because they are numerous and do not represent established species. All genera are native in China except Specularius Bridwell.

1. Pronotum with distinct gibbosities...............2

1′. Pronotum without distinct gibbosities..........4

2. Hind femur with 1 large and 2–3 smaller adjacent spines on internal margin of ventral sulcus....... .......................................... Specularius Bridwell

2′. Hind femur with 1 spine on internal margin of ventral sulcus................................................3

3. Body length> 4 mm; pronotum with 2 hornlike gibbosities .... Horridobruchus Borowiec

3′. Body length <3 mm; pronotum with median gibbosity.................. Kingsolverius Borowiec

4. Pronotum conical with distinctly concave sides ...................................... Conicobruchu s Decelle

4′. Pronotum conical with slightly concave sides at most...........................................................5

5. Lateral pronotal margin smoothly concave to convex; hind femur either without tooth or at least internal margin of ventral sulcus toothed ...................................................................... 6

5′. Lateral pronotal margin with blunt tubercle (may be obscured by setae); hind femur with large preapical tooth on outer margin of ventral sulcus .................................... Bruchus L.

6. Hind femur with outer margin of ventral sulcus edentate............................................................ 7

6′. Hind femur with tooth on both internal and outer margins of ventral sulcus, sometimes denticle on distal margin blunt.....................9

7. Hind femur ventrally with 3 distinct preapical teeth, proximal tooth much larger than others ............................... Acanthoscelides Schilsky

7′. Hind femur ventrally edentate or with 1–2 preapical teeth ...................................................... 8

8. Pygidium sexually dimorphic, female with large, oval, bare foveae; host Gleditsia sp ..... ............................ Megabruchidius Borowiec

8′. Pygidium not sexually dimorphic; other hosts ...................................... Bruchidius Schilsky

9. Posterior margin of pronotum bilobed at junction with scutellum and feebly gibbose there; male internal sac with at least 1 pair of more or less toothed basal plates .................. ....................................... Callosobruchus Pic

9′. Pronotum not bilobed at junction with scutellum; male internal sac with pair of hinged sclerites at apical orifice of median lobe ......... ............................................ Borowiecius Anton

Figures

Figs. 1–9. Kingsolverius malaccanus. 1) Male, dorsal view; 2) Male, lateral view; 3) Head; 4) Pronotum with gibbosity; 5) Pygidium; 6) Male, distal sternites, ventral view; 7) Female, distal sternites, ventral view; 8) Hind leg, external view; 9) Hind leg, bicarinate ventrally, internal, inside view. Scale bars = 1.0 mm.

Figs. 10–16. Kingsolverius malaccanus, male genitalia. 10) Entire genital tract, dorsal view; 11) Median lobe; 12) Lateral lobes; 13) Tergite VIII; 14) Spiculum gastrale; 15) Spines in middle of internal sac; 16) Denticles and spines at base of internal sac. Scale bars = 0.5 mm.

Figs. 17–21. Kingsolverius malaccanus, female genitalia. 17) Entire genital tract with rectum, ventral view;