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1.
One new species of Riethia Kieffer, Riethia manauara n. sp., is described and figured as male, pupa and larva. The generic diagnosis for pupae and larvae are emended. The specimens were collected from water systems in the Amazon Rainforest in northern Brazil.  相似文献   

2.
Two new species of Parapentaneura Stur, Fittkau et Serrano, 2006 (Diptera: Chironomidae: Tanypodinae) from southeastern Brazil are described and figured as male, pupa and larva: P. brunnescens and P. flavescens. Keys to the males, pupae and larvae of known species of Parapentaneura are provided.

http://www.zoobank.org/urn:lsid:zoobank.org:pub:E6860EBE-B781-4DDA-9650-6E6EA3A0309E  相似文献   

3.
Wiedemannia pieninensis spec. nov., a new aquatic dance fly (Diptera, Empididae, Clinocerinae) from Poland is described and figured.  相似文献   

4.
Five new genera and five new species of alpine soil algae from S. Tyrol are described from cultures and figured. One of them belongs to theXanthophyceas:Heterothrix sessilis, spec. nova, the remaining to theChlorophyceae:Scotiellopsis rubescens, gen. et spec. nov.,Pseudodictyochloris dissecta, gen. et spec. nov.,Chlorozebra cohaerens, spec. nova,Neochloris bilobata, spec. nova,Myrmecia astigmatica, spec. nova,Trochisciopsis tetraspora, gen. et spec. nov.,Pseudotrochiscia areolata, gen. et spec. nov.,Stichococcus undulatus, spec. nova, andHormidiospora verrucosa, gen. et spec. nov.  相似文献   

5.
A new species of Neotropical Psychodidae, Alepia apexalba sp. nov., is described from dry-forest tank bromeliads in Saba, Netherlands Antilles. Larvae, pupae and adults are described and figured. It is possible to relate larvae and adults because the latter were reared from pupae collected from the bromeliads (Tillandsia utriculata) that also contained larvae. Bromeliads are adapted to intercept canopy litter and throughfall water, and decaying litter is washed into and retained by the leaf bases. It is from this aquatic habitat that the larvae and pupae were collected.  相似文献   

6.
ABSTRACT. Pupal attendance by adult males of the crabhole mosquito, Deinocentes cancer Theobald, was videotaped in the laboratory. The relationship between pupal attendance time and the sex and age of the attended pupa was clarified by quantitative analysis of the videotapes. Male D. cancer distinguish between male and female pupae if the pupae are within approximately 14 h of eclosion and males spend significantly more time attending such female pupae. The attendance time of female but not of male pupae increased exponentially as they approached eclosion.  相似文献   

7.
记述中国肛脊摇蚊属5种,包括3新种M.apsensis sp.nov.、M.brevae sp.nov.和M.gracila sp.nov.,中国1新记录种M.acutistyla Sther。编制了中国该属5种雄虫检索表。模式标本保存于南开大学生命科学学院摇蚊学研究室。  相似文献   

8.
Adults and immatures of Novonothrus kethleyi spec. nov. are described. These Oribatid specimens originate from a forest litter sample collected in Chile. The mite is distinguished from all congeneric species by a trilobed posterior notogastral margin, monodactylous legs, short, broad and distally rounded posterior notogastral setae, and a thick, scale-like seta it' on tarsi II–IV in the adults. Se describen los inmaduros y adultos de la nueva especie Novonothrus kethleyi spec. nov., para Chile. Esta especie se distingue del resto de las especies del género por presentar el margen posterior del notogáster trilobulado; patas con una uña; setas notogastrales anchas, cortas y distalmente redondeadas, y por poseer seta it' grande y escamiforme en los tarsos II–IV de los adultos.  相似文献   

9.
A new species of Denopelopia from Brazil is described based on adult male and pupa. The male of the new species can be distinguished from all other species of the genus by the genitalia and fore-tibial spur morphology. The pupa is very similar to those of Denopelopia atria, but it can be distinguished by the absence of distinct constrictions in the respiratory atrium of the thoracic horn. Generic diagnosis to male and pupa of Denopelopia is emended and keys to male and pupae of known species are provided.  相似文献   

10.
Wang  X. H.  S  sgmaelig;ther  O. A. 《Hydrobiologia》1997,362(1-3):103-106
Quiniella lii gen. nov., sp. nov. from China is describedas male imago. The genus share bare eyes, wing and squama and extended costa with most members of the Parakiefferiella group sensu S\sgmaelig;ther (1983), and the absence of a scutaltubercle, hump or microtrichial tuft and strongly developedvirga with Krenosmittia Thienemann & Krüger, but isamong other distinguished by a unique trifid gonostylus. This revised version was published online in July 2006 with corrections to the Cover Date.  相似文献   

11.
记述了分布于中国东洋区的拟花托摇蚊属Stempellinella 1新种:裸拟花托摇蚊 Stempellinella depilisa sp.nov.正模♂,福建省上杭县步云山,1993-05-05,王新华采.本种与本属已知种的主要区别特征在于肛节(第9)背板不具有中区长刚毛.同时本种个体小;触角比只有0.47.文中对Cranston等(1989)提出的属级鉴别特征作了修订.新种模式标本保存于南开大学生命科学学院.  相似文献   

12.
13.
A very diverse ciliate community was found in nine soil samples from the Shimba Hills Nature Reserve in Kenya, equatorial Africa. The ciliates, respectively, their resting cysts, were re-activated from air-dried samples using the non-flooded Petri dish method. Species were determined from life and by silver impregnation. 34 (27%) of the 125 taxa identified had not yet been described in 1985, when the samples were collected and investigated. The richest samples, each containing 59 species, were those from a deciduous primary forest and a young secondary pine forest. The most remarkable species discovered in the Shimba Hills were Krassniggia auxiliaris, Bresslauides terricola, Gigantothrix herzogi, and Afrothrix darbyshirei. They are flagships with a very distinct morphology and easy to recognise due to their extraordinarily large body size. Krassniggia auxiliaris occurs also in Australia and probably has a restricted Gondwanan distribution, like some other ciliates. Bresslauides terricola was later found in soils from all main biogeographical regions, except for Antarctica. Gigantothrix herzogi and Afrothrix darbyshirei are still unique to the Shimba Hills. The following taxa are described in detail: Sikorops woronowiczae nov. gen., nov. spec., Arcuospathidium multinucleatum nov. spec., Dileptus similis Foissner, 1995, Plagiocampa bitricha nov. spec., Drepanomonas exigua exigua Penard, 1922, D. exigua bidentata nov. sspec., Parafurgasonia protectissima (Penard, 1922) nov. comb., P. terricola nov. spec., Brachyosoma brachypoda mucosa nov. sspec., Gigantothrix herzogi nov. gen., nov. spec., Afrothrix darbyshirei nov. gen., nov. spec., Oxytricha africana nov. spec., and O. elegans nov. spec.  相似文献   

14.
15.
The Japanese species of the genus Syndiamesa are revised. A new species, Syndiamesa longipilosa sp. nov., from Honshu, Japan is described from male and female material. The male of Syndiamesa mira (Makarchenko) from Japan is redescribed and figured. Syndiamesa chuzemagna Sasa is synonymized with Syndiamesa yosiii Tokunaga. Syndiamesa bicolor Tokunaga is transferred to the genus Sympotthastia. A key to males of Japanese Syndiamesa is provided.  相似文献   

16.
Summary The proportion of adult Panolis flammea emerging from the overwintering pupae was markedly affected by pupation substrate, waterlogging, temperature and relative humidty. Pupae which had spent the winter in needle litter had a significantly greater survival rate than those in either soil or peat.The greater the length of time spent waterlogged the greater the mortality rate of P. flammea pupae. At temperatures of-20° C, there was 100% pupal mortality within 24 h of exposure.Pupal weight loss was proportional to the length of time spent as a pupa. Female pupae lost proportionately more weight than male pupae. Pupae of both sexes lost more weight at a low relative humidity than at a high relative humidity. At low relative humidities female pupal mortality was higher than that of male pupae.  相似文献   

17.
Female qualities in males are common in vertebrates but have not been extensively reported in insects. Vitellogenin (Vg) is highly expressed in the female fat body and is generally required for the formation of yolk proteins in the insect egg. Vg upregulation is generally regarded as a female quality in female oviparous animals. In this study, we found that Bombyx mori Vg (BmVg) is especially highly expressed in the female pupa. Downregulation of the BmVg gene in the female pupa by RNA interference (RNAi) interfered with egg formation and embryonic development, showing the importance of BmVg in these processes. So, we used BmVg as a biomarker for female qualities in the silkworm. Hematoxylin-eosin staining and immunofluorescence histochemistry showed that ovary transplants induced BmVg synthesis in the male pupa fat body. Ovaries transplanted into male silkworms produced only a few eggs with deformed yolk granules. These results suggested that the amount of BmVg in the male silkworm was insufficient for eggs to undergo complete embryonic development. After 17-beta-estradiol was used to treat male pupae and male pupal fat bodies, BmVg was upregulated in vivo and in vitro. These findings indicated that the male silkworm has innate female qualities that were induced by a transplanted ovary and 17β-estradiol. However, in silkworms, female qualities in males are not as complete as in females.  相似文献   

18.
The effect of four temperatures (18, 20, 25 and 30°C) on pupa development and sexual maturity of Anastrepha obliqua adults was investigated under laboratory conditions. The results showed that the duration of the pupal stage decreased with an increase in temperature (29, 25, 13 and 12 days, respectively), and maintaining the pupae at 18°C and 20°C results in a low percentage of pupation, pupa weight loss and lesser flying ability. However, it significantly favored sexual behavior, a higher proportion of sexual calls and matings. While enhanced pupa development was observed at a temperature of 30°C, adults had low sexual efficiency, as well as a lower proportion of calls and matings. Gas chromatography-mass spectrometry (GC-MS) analysis of male volatiles showed that the amount of (Z,E)-α-farnesene did not vary among males from pupae reared at different temperatures; however, less (E,E)-α-farnesene was emitted by males obtain from pupa reared at 30°C. Male flies kept at 30°C during their larval stage had more (Z)-3-nonenol and, also, an unknown compound was detected. The fecundity of the females was higher at low temperatures. Regarding fertility, no significant differences were found between temperatures. The optimal temperature on pupa development was 25°C when males displayed ideal attributes for rearing purposes.  相似文献   

19.
Summary From sandy beaches of the Bay of Bengal (Indian Ocean) three interstitial species are described and discussed: Anthohydra psammobionta gen. et. spec. nov., a new solitary hydropolyp (Fig. 1), as well as two Pseudovermis-species, viz. P. soleatus spec. nov. and P. indices spec. nov., the latter of which is closely related to the brazilian P. salamandrops.  相似文献   

20.
Pero rodriguezi sp. nov. is described from Socoroma, at 3000 m of altitude in northern Chile, based on male holotype. This is the first species of Pero described from Chile.  相似文献   

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