Three species of Amphicorina (Annelida, Sabellida, Sabellidae) from Japan, with descriptions of two new species

We describe two new species and redescribe one in the polychaete genus Amphicorina Claparède, 1864 (Sabellidae) from Hokkaido, Japan. Amphicorina ascidicolasp. n. differs from its 38 congeners chiefly in the reduction of the collar, but also in having three pairs of radioles, one pair of ventral radiolar appendages, a bifurcate ventral lobe on the anterior peristomial ring, six abdominal chaetigers, and a large anterior tooth on the abdominal uncini. Amphicorina ezoensissp. n. has a crenulated collar, three pairs of radioles, and more than eight (12) abdominal chaetigers; Amphicorina ezoensis shares these character states with Amphicorina anneae (Rouse, 1994), Amphicorina eimeri (Langerhans, 1880), and Amphicorina persinosa (Ben-Eliahu, 1975), but differs from them in having two pairs of ventral radiolar appendages and a non-oblique collar. Amphicorina mobilis (Rouse, 1990) was previously known only from the type locality (New South Wales, Australia), but we identify our Japanese material as conspecific on the basis of morphological and molecular similarity.     

NOTES ON CARBONARIA SPECIES GROUP OF GENUS FANNIA ROBINEAU-DESVOIDY (DIPTERA: FANNIIDAE), IN CHINA

Abstract  The present paper deals with the Fannia carbonaria species group (Diptera: Fannidae) in China. Eight species are recorded, 2 of them are described as new to science, i.e. F. antilocera sp. nov. and F. tauricornis sp. nov., and F. imperatoria Nishina 2002 is recorded for the first time in China. Fannia antilocera sp. nov. is most closely related to F. minutipalpis (Stein, 1895), but can be identified by the third antennal segment 2.5 times as long as broad, scutum with brownish-grey, hind femur with a row of pv setae only at basal half. F. tauricornis sp. nov. is very close to F. capricornis Xue, 1996, but is separated on the third antennal segment 3 times as long as wide, basicosta yellow, legs dark brown, the first sternite with hairs, surstylus without expansion on median dorsal; bacilliform process with 2 short processes. In addition, F. tauricornis sp. nov. is fairly related to F. trigonfera Chillcott, 1961, F. japonica japonica Nishida, 1974, F. japonica amamiensis Nishida, 1975, but sets apart by several distinctive characters: cereal plate with longer arm of outside projection, surstylus without expansion on median dorsal, and bacilliform process with 2 short processes. The paper also reports the characters of the F. carbonaria species group. The group as a whole can be recognized by the hind femur without rows of pv setae at apex, the mid tibia with 2 ad and 2 pd setae and the single strong prealar seta.     

中国厕蝇属炭色厕蝇种团记述（双翅目：厕蝇科）

炭色厕蝇种团Fannia carbonaria group是厕蝇属Fannia中的12个种团之一。该种团全世界已知20种,主要分布于全北界。报道了产自中国的该种团8个种的名录及分布,编制了该种团分种检索表,对其中2个新种F.antilocera sp．nov．,F.tauricornis sp．nov．和1个国内新记录种F.imperatoria Nishina,2002分别予以记述。新种F.antilocerasp．nov．同小须厕蝇F.minutipalpis(Stein,1895)相近缘,但后触角第三节长为宽的3倍,盾片具灰色粉被,后足股节后腹鬃列分布到基部2／3处,尾器明显不同等可予以区别。新种F.tauricornis sp．nov．同羊角厕蝇F.capricornis Xue,1996相近缘,但新种触角第三节长为宽的3倍,前缘基鳞黄色,足暗棕色;第一腹板具毛,侧尾叶后缘中部无角形突出,杆状突分为两个短突等即可区别;另与本亚种团的F.trigonfera Chillcott,1961,F．japonica japonica Nishida,1974,F．japonica amamiensis Nishida,1975亦相近,但新种肛尾叶外侧突横臂较长,侧尾叶后缘中部无角形突出,杆状突分为2个短突等亦可区别。新种模式标本和其它研究标本均保存于沈阳师范大学昆虫研究所昆虫标本室。     

Comparative internal structure of dorsal lips and radiolar appendages in sabellidae (Polychaeta) and phylogenetic implications

Fan worms (Sabellidae) possess paired modified prostomial structures at the base of the radiolar crown, dorso‐lateral to the mouth, called dorsal lips. The dorsal lips are involved in the sorting of particles collected by the radiolar crown. The range of variation in the morphology of dorsal lips is extensive, and probably this is not only due to adaptations to different environments and feeding preferences but also due to phylogenetic constraints. In this study, we describe and compare the morphology of dorsal lips in a range of sabellid taxa based on histological cross‐sections of these structures, and compare our data and terminology with those of previous studies. Dorsal lips are maintained erect in most taxa by a modified radiole fused to them known as dorsal radiolar appendage. We suggest that dorsal radiolar appendages with an internal supporting axis (cellular or acellular) and probably also the ventral lips are synapomorphies of the family. J. Morphol., 2011. © 2010 Wiley‐Liss, Inc.     

Parasabella Bush, 1905, replacement name for the polychaete genus Demonax Kinberg, 1867 (Annelida, Polychaeta, Sabellidae)

Parasabella Bush, 1905 is reintroduced as a replacement name for Demonax Kinberg, 1867 (Annelida: Polychaeta: Sabellidae) which is a junior homonym of Demonax Thomson, 1860 (Insecta: Coleoptera: Cerambycidae).     

寄螨属1新种和新革螨属1新种(蜱螨亚纲:中气门目:寄螨科)

记述寄螨属1新种:棒毛寄螨Parasitus clavasetosus sp.nov.和新革螨属1新种:丛枝新革螨Neogamasus fasciculus sp.nov.     

中国宁夏图属一新种(弹尾纲,等节科)(英文)

记述了采自中国西北部宁夏省六盘山自然保护区的图姚属1新种,六盘山图姚Tuvia liupanensis sp.nov..文中给出了图姚属已知种类检索表.模式标本保存于中国科学院上海生命科学研究院植物生理生态研究所昆虫标本馆.     

维螨属2新种记述(蜱螨亚纲:中气门目:维螨科)

记述维螨属2新种:河南维螨Veigaia henanensis sp.nov.和福建维螨Veigaia fujianensis sp.nov.     

革板螨属3新种和派伦螨属1新种（蜱螨亚纲：中气门目：派盾螨科）

记述革板螨属3新种和派伦螨属1新种：井冈山革板螨Gamasholaspis jinggangshanensis sp．nov．,何氏革板螨Gamasholaspis hochyicheni sp．nov．,新阿革板螨Gamasholaspis novakimotoi sp．nov．和沙县派伦螨Parholaspulus shaxianensis sp．nov．     

下盾螨属一新亚种和龚氏钝革螨后若虫形态描述(蜱螨亚纲,厉螨科,寄螨科)

记述下盾螨属 Hypoaspis Canestrini,1885的1新亚种,柔弱下盾螨宁夏亚种Hypoaspis debilis ningxiaensis Bai,ssp. nov.和龚氏钝革螨 Amblygamasus gongzhengdai Bai,2010后若螨形态,标本分别采自银川市南郊地表柳叶腐植层及银川花卉市场的高山榕盆景土壤表层。模式标本保存于军事医学科学院微生物流行病研究所昆虫标本馆和宁夏回族自治区疾病预防控制中心。     

盲蝽科一新种及中国四新纪录种(半翅目,盲蝽科)

记述了盲蝽科1新种,金毛束盲蝽Pilophorus fulvicomus sp.nov.。报道了中国4新纪录种:印度蚁叶盲蝽Hallodapus indicus(Poppius,1911),九州蚁叶盲蝽Hallodapus kyushuensis M iyamoto,1966,贝克束盲蝽Pilophorus bakeriSchuh,1984和印支宽敖盲蝽Wygomiris indochinensis(Schuh,1984)。提供了新种和新纪录种雄性生殖器特征图。模式标本保存于南开大学昆虫学研究所。     

斜脉蝠蛾幼虫分类特征研究

本文研究报道了冬虫夏草主要寄主之一斜脉蝠蛾Hipialus oblifurcus Chu et Wang幼虫头、胸、腹各部分的形态特征、颜色、毛序及各龄幼虫的头宽和体长,可作为鉴别种类的依据。     

Scanning electron microscopy of Drosophila melanogaster embryogenesis: III. Formation of the head and caudal segments

The formation of both the anterior most and posterior most segments in higher dipteran embryos involves complex movements of primordia which can be best visualized with the scanning electron microscope. During head formation, the gnathocephalic segments partially involute through the stomodeum. The labial segment forms the floor of the mouth, and the fused maxillary and mandibular segments form the lateral sides of the mouth. The involuted clypeolabrum forms the roof of the mouth. Invaginations of cells for segmentally derived sense organs can be found prior to involution on all the gnathocephalic and thoracic segments as well as on the labrum. The antennal sense organ derives from the lateral surface of the procephalic lobe. Following involution of the mouth parts, the dorsal ridge, which arises just anterior to the first thoracic segment, is drawn over the dorsal procephalic lobe producing the deep dorsal sac. The optic lobes of the brain invaginate anterior to the dorsal ridge just prior to the covering over of the head. The formation of the anal segment is similarly complex. Two rudimentary segments are found posterior to the eighth abdominal segment. During shortening of the germ band, the posterior most segment is drawn around the posterior tip of the embryo to lie ventrally. Two large anal pads form lateral to the anus from this segment. The next segment, following dorsal closure, produces a pair of anal sense organs and a central tuft of setae. Finally, the eighth abdominal segment gives rise to the posterior spiracles. Following dorsal closure these three segments fuse to produce the terminal (anal) segment of the larva.     

Marine Oligochaeta from the Koster Area, West Coast of Sweden, with Descriptions of Two New Enchytraeid Species

A total of 28 species of marine Oligochaeta (belonging to the families Naididae, Tubificidae and Enchytraeidae) are reported from eulittoral and sublittoral sediment samples taken in the Koster area on the Swedish West Coast. Lumbricillus algensis sp.n. and Grania ovitheca sp.n. are described and their morphological and taxonomical relations to other enchytraeids are discussed. L. algensis is characterized mainly by its spermathecae, which project into segment VI, and by its very large penial bulbs. G. ovitheca possesses no dorsal setae, the ventral setae being present posterior to the clitellum only, and its spermathecae consist of a narrow duct and a large egg-shaped to oval ampulla, filling most of the coelom of segment V. Four sublittoral species, Limnodriloides barnardi (Tubificidae), Lumbricillus semifuscus, Marionina sublitoralis and Grania roscoffensis (all Enchytraeidae) are reported as new to the Swedish fauna.     

Deep-sea Kinorhyncha: two new species from the Guinea Basin,with evaluation of an unusual male feature

Two new species of homalorhagid kinorhynchs from the deep-sea Guinea Basin are described. Pycnophyes nubilis sp. nov. is easily recognized by the presence of paradorsal setae on segment 1; middorsal processes on segments 1–10, progressively increasing in length towards the posterior segments; and middorsal process on segment 10 extending over the last trunk segment. Pycnophyes farinellii sp. nov. is distinguished by middorsal elevations on segments 2–9 and laterodorsal and ventromedial setae on segments 2 and 9 only. Moreover, males of the latter species lack ventromedial tubes on segment 2—a very uncommon feature among the genus. The systematic significance of this character is discussed in detail.     

中国美绥螨属1新种和大陆1新记录（蜱螨亚纲：中气门目：美绥螨科）

记述中国美绥螨属1新种：拟筐美绥螨Ameroseius imitocorbiculus sp．nov．和大陆1新记录：越南美绥螨Ameroseius vietnamensis Micherdzinski,1955。