摘 要：
梢小蠹属(Cryphalus Er.)自.1836年爱里逊(Erichson) 命名以来,已历百余年。其间,林特曼(ЛиндеманКЭ.)1876年发表的Homoeocryphalus为本属的同物异名。钮司林(Nusslin,O.)在1911—1912年对本属的内部形态特征,主要是咀嚼胃和雄性生殖器,做了基本研究。目前全世界已知155种,在旧北区分布35种,东洋区49种。其中,
译 名：
RESEARCH ON THE CHINESE BARK-BEETLES OF THE GENUS CRYPHALUS ER. WITH DESCRIPTIONS OF NEW SPECIES
作 者：
TSAI PANG-HWA;LI CHAO-LIN Institute of Zoology,Academia Sinica Institute of Forestry and Pedology,Academia Sinica
摘 要：
The present paper contains the results of our work on the collections of bark beetlesof the genus Cryphalus Er. in China during recent years. The whole collection contains23 species and 3 subspecies, among them 11 species, 3 subspecies and two sub-genera are new to science, and 4 species are new records to our Ipidofauna. The typesof new species and all other materials are preserved in the Institute of Zoology, Acade-mia Sinica. A summary with keys to subgenera and species is given below: Key to subgenera1(4) Elytra with more or less scales in both sexes.2(3) Frons nearly uniform in both sexes, without transverse carina in male. Chitinous spinulae on pos- terior part of ejaculatory duct setiform or absent………………………………Cryphalus s. str.3(2) Upper portion of frons with a prominent transverse carina in male. Chitinous spinulae on posterior part of ejaculatory duct triangular or wedge-shaped, not setiform……Jugocryphalus subgen. nov.4(1) Elytra without scales in both sexes, or at least absent in female……Acryphalus subgen. nov. Key to species of subgenus Cryphalus Er.1(12) Insects infest conifers.2(7) First transverse suture on the anterior face of the club nearer to the base. Transverse teeth-band of anterior plate of proventriculus broader than 90% of the plate width.3(4) Tubercular rugosities of pronotum numerous, centripetal arrangement. Lower margin of frons emar- ginated weakly. Elytral striae rather deeper. Penis more slender, with a prominent dividing-margin between the apodemes and penis body. Host: Abies sp.……1. C. (Cryphalus) redikorzevi Berg.4(3) Tubercular rugosities of pronotum sparse. Lower margin of frons with a prominent emargination. Elytral striae rather deeper only at the base and near the scutellum. Penis more stronger, between the apodemes and penis body without dividing-margin.5(6) Top of pronotum located at one-fifth behind. intetstitial of declivity with a series erect bristles much denser in female than male. Lateral margin of penis parallel, penis apex truncated. Host: Abies sp.……………………………………………… 2. C. (Cryphalus) sinoabietis Tsai et Li sp. nov.6(5) Top of pronotum at one-third behind. Interstrial bristles of declivity in female equal to those of male. Posterior part of penis much narrower than the anterior part, penis apex rounded. Host: Abies sp.……………………………… 3. C. (Cryphalus) sinoabietis opienensis Tsai et Li ssp. nov.7(2) First transverse suture on the anterior face of the club not nearer to the base. Transverse teeth- band of anterior plate of proventriculus lesser than 90% of the plate width.8(9) Size larger, lower mangin of frons "?" shaped, Penis stout. Host: Picea asperata Mast.………… ……………………………………………………… 4. C. (Cryphalus) miyalopiceus Tsai et Li sp. nov.9(8) Size smaller, lower margin of frons straight.10(11) Antennal club elliptical. Elytral striae rather prominent. Penis slender, apodemes about 48% of total length of penis body and apodemes combined. Between the apodemes and penis body without margin. Host: Larix dahurica Turcz.………………………………………… 5. C. (Cryphalus) latus Egg. 11(10) Club oval shaped. Elytral striae not prominent. Penis short, apodemes about 32% of total length of penis body and apodemes combined, with a prominent dividing-margin between apodemes and penis body. Host: Picea asperata Mast.……………………………………6. C. (Cryphalus) saltuarius Wse.12(1) Insects infest broad-leaved trees.13(14) Frontal surface finely, longitudinally aciculated…………………… 7. C. (Cryphalus) viburni Stark14(13) Frontal surface coarsely punctuated, not aciculated.15(16) In the mid part of three transverse sutures on anterior face of club somewhat procurved anteriorly. Lower margin of frons emarginated indistinctly. Penis without endplate. Host: Armeniaca sp.…… ………………………………………………………………………… 8. C. (Cryphalus) malus Niis.16(15) Three transverse sutures of the club nearly straight. Lower margin of frons emarginated distinctly. Penis with a large endplate and accessories. Host: Padus a
