Doryscus scapus Mohamedsaid, 1999

Lee, Chi-Feng, 2017, Revision of the genus Doryscus Jacoby (Coleoptera: Chrysomelidae: Galerucinae), Zootaxa 4269 (1), pp. 1-43: 38-39

publication ID

https://doi.org/10.11646/zootaxa.4269.1.1

publication LSID

lsid:zoobank.org:pub:2AFC0D53-B439-4BBB-BC22-A0C90C08D65D

persistent identifier

http://treatment.plazi.org/id/0A03A20C-FFB6-FF91-FF24-FCBD537AEBF1

treatment provided by

Plazi

scientific name

Doryscus scapus Mohamedsaid, 1999
status

 

Doryscus scapus Mohamedsaid, 1999 

( Figs 20View FIGURE 20 B –20C, 22)

Doryscus scapus Mohamedsaid, 1999: 101  .

Type. Paratype ♀ ( UKM): “ SABAH, Kinabalu Park, / H.Q.- Power Station / (1700m) night / 3.X, 1987 / Gunik Gunsalam leg. [p, w] // PARATYPE [p] / Doryscus  / scapus  n. sp [h] / des. Mohamedsaid 199 [p] 8 [h, w, with red border]”. 

Additional specimens (n= 2). MALAYSIA. Sabah: 1♂ ( NHMB), Km 53 Road KK-Tabunan, E slope Gn. Emas, 700 m, 1–5.IV.2000, Bolm  ; 1♀ (NHMB), Km 53 Road KK-Tabunan, Gn. Emas, 1650 m, 22.III.–6.IV.2000, Bolm.

Redescription. Length 4.0– 4.8 mm, width 1.6–1.8 mm. General color yellow brown; antennae dark brown; pronotum with one median, longitudinal, wide dark band; elytra with subapical and sub-basal transverse, illdefined, dark stripes ( Fig. 20View FIGURE 20 B) that are sometimes reduced. Antennae filiform, antennomere I strongly swollen in males ( Fig. 22View FIGURE 22 A), length ratios of antennomeres I –XI 1.0: 0.3: 0.6: 0.7: 0.6: 0.6: 0.7: 0.6: 0.6: 0.6: 0.7, length to width ratios of antennomeres I –XI 2.3: 2.0: 3.4: 4.1: 3.9: 4.1: 4.6: 4.3: 4.1: 3.8: 4.4; antennomere I normal in females ( Fig. 22View FIGURE 22 B), length ratios of antennomeres I –XI 1.0: 0.3: 0.6: 0.7: 0.7: 0.7: 0.8: 0.8: 0.8: 0.7: 0.9; length to width ratios of antennomeres I –XI 4.6: 1.8: 3.3: 4.1: 4.2: 4.3: 4.4: 4.4: 4.4: 4.2: 5.0. Elytra 1.8 x longer than wide, disc with erect setae dense and elongate, and fine punctures. Apical margin of last abdominal ventrites with two shallow incisions in males ( Fig. 22View FIGURE 22 G); slightly medially depressed in females ( Fig. 22View FIGURE 22 H). Penis ( Figs 22View FIGURE 22 C –22D) slender, 8.9 x longer than wide, gradually narrowed towards apex; apex of dorsal surface with moderately deep notch, below apex of ventral surface; apex of ventral surface with shallow notch; straight in lateral view, deep notch between dorsal and ventral surface; ventral surface smooth. Internal sac with endophallic spiculae short, about 0.4 x as long as penis, main spicula recurved and with a cluster of setae at apical 1/4; two pairs of elongate spiculae at middle basally joined, apices swollen and sphere-shaped; one pair of elongate spiculae at basal 1/6, apices horn-like and curved dorsally in lateral view; one pair of oblique and short spiculae at base, apices hornlike and curved ventrally in lateral view. Gonocoxae ( Fig. 22View FIGURE 22 E) extremely slender, 6.9 x longer than wide, sides slightly narrowed at apical 1/10; apices narrowed rounded; inner margins narrowly approximate from apex to midpoint, apex with nine setae; extremely slender from midpoint to base but abruptly widened at base. Ventrite VIII ( Fig. 22View FIGURE 22 E) well sclerotized; spiculum elongate; apex square, apical margin truncate, with dense short setae; disc with several long setae at sides. Receptacle of spermatheca ( Fig. 22View FIGURE 22 F) as wide as pump, narrowly separated from pump; pump strongly curved and not apically narrowed; proximal spermathecal duct elongate, shallowly projecting into receptaculum.

Color variability. Females have yellow bodies and a wide, transverse black band on the base of the elytra ( Fig. 20View FIGURE 20 C).

Differential diagnosis. See diagnosis of Doryscus wangi  sp. nov. Distribution. East Malaysia (Sabah). 

UKM

Universiti Kebangsaan Malaysia

NHMB

Naturhistorisches Museum, Basel

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Chrysomelidae

Genus

Doryscus

Loc

Doryscus scapus Mohamedsaid, 1999

Lee, Chi-Feng 2017
2017
Loc

Doryscus scapus

Mohamedsaid 1999: 101