Curculio breviscapus (Heller)

Pelsue, Frank W. & Zhang, Runzhi, 2002, A Review Of The Genus Curculio From China With Descriptions Of New Taxa. Part III. The Curculio subfenestratus Voss Group (Curculionidae: Curculioninae: Curculionini), The Coleopterists Bulletin 56 (1), pp. 1-39 : 17

Curculio breviscapus (Heller)

Figs. 25–26 , 87–90

Balaninus breviscapus Heller 1927:193 .

Curculio breviscapus continentalis Voss 1958:92 .

Curculio tigrinus Morimoto 1960:103 .

Type. Taiwan (Formosa): Holotype male, B. breviscapus, (SMTD) .

Diagnosis. Oval; 4.6–5.7 mm (mean = 5.1 mm, n = 8) in length; 2.4–3.1 mm (mean = 2.4 mm, n = 8) in width; rostrum margins dilated at base to antennal insertion, more pronounced in female than male, then narrowing to more cylindrical tube to apex; rostrum with apicoventral tuft of several elongate setae on both male and female specimens posterior to apex; antennal club robust; scape short in both male and female with scrobe ventral, inserted in basal third of rostrum; pronotum with three vittae, median and lateral, of narrow, elongate, white scales, the lateral macula more diffuse, with indication of basal macula; scutellum very small, dot­like, about as wide as broad; elytra with confused macula of ochroleucus scales with pronounced macula on subapical callus; hind femur not reaching abdominal apex; male metauncus bifid, female simple, short. Genitalia: median lobe of aedeagus 0.8 mm (n = 1) in length; 0.24 mm (n = 1) in width; in dorsal view margins broader at base for ¾ of length, then narrower to apex, in lateral view thicker at base, narrowing to apex, with apical deflection short; apodeme 1.1 mm (n = 1) in length (Figs. 87–89); female spermatheca ‘‘C’’ shaped, ramus obliquely erect and collum united with ramus, cornu broad at base narrowing to up­turned truncated apex (n = 1) (Fig. 90).

Distribution. Japan; Formosa (Taiwan); China: Fujian Province, Jianyang, Shaowu, Kuatun, Congan; Zhejiang Province: Tianmushan.

Remarks. Scale pattern and general form distinguish C. brevicapus from the species in this group. Base of rostrum similar to C. lobatibasis , broad at base to antennal insertion, then cylindrical to apex.

Figures

Figs. 25–26. Curculio breviscapus (Heller) Male, habitus dorsal and lateral views. Figs. 27–28. Curculio balmeri n. sp. Male, habitus dorsal and lateral views, holotype. Figs. 29–30. Curculio maculanigra (Roelofs) Male, habitus dorsal and lateral views. Various scales.