1. There are numerous data that support the trade‐off between flight capability and reproduction in female wing polymorphic insects, but relationship form fitness remains poorly investigated males. 2. In present study, development of muscle gonads, spermatophore size, multiple copulation ability were both long‐winged (LW) short‐winged (SW) males to verify this trade‐off, using a dimorphic cricket species Velarifictorus aspersus (Walker). 3. The LW had better‐developed muscles than SW on day...

Abstract Morphology, flight muscles, and reproductive development were compared between long‐winged (LW) short‐winged (SW) morphs of the cricket Velarifictorus ornatus (Shiraki) (Orthoptera: Gryllidae). There was no difference in body weight pre‐oviposition two morphs, but LW individuals had better‐developed muscles than SW during after emergence adult. The at adult represented 11.9% total female 4.9% female. In addition, muscle females increased by 50% first 5 days, whereas variant only...

Sexual selection allows male individuals to adopt different evolutionary strategies in mating system. In this study, we determined whether dominance affected reproductive fitness of crickets Velarifictorus aspersus during both pre-copulatory and post-copulatory when excluded male-male competition. The results showed that females mated more often with winners only the first 2 h after a fight were likely produce courtship songs than losers. However, did not retain attached spermatophores...

Abstract In wing dimorphic cricket Velarifictorus micado Saussure, group rearing could induce macropters, but density had a nonlinear effect on the incidence of macroptery. Frequency macropters increased along with under low-density conditions, it decreased gradually high densities, especially for females. This result indicates that flight ability is required to escape from crowded there factor would suppress development high-population in V. micado. Investigation body injury showed density,...

Abstract We examined whether body size, development time, and wing dimorphism are affected by latitude in the cricket, Velarifictorus micado (Saussure).Wefound that number of days required for nymphal decreased with increasing latitude, suggesting shorter periods warm temperatures north resulted faster development. Body size varied between populations, followed converse to Bergmann's rule, indicating limited time at higher latitudes smaller size. Wing V. was influenced both photoperiod...

Abstract The cricket Velarifictorus aspersus (Walker) (Orthoptera: Gryllidae) exhibits a wing dimorphism mediating two distinct life‐history strategies during early adulthood; long‐winged (LW) females mainly invest resources in flight, whereas short‐winged (SW) more heavily reproduction than LW females. To understand the relationships among juvenile hormone (JH), flight capacity, and energy accumulation, daily rhythm of JH titer activity, concentrations substances, influence exogenous on...

Dryocosmus kuriphilus (Hymenoptera: Cynipidae) is a gall wasp that induces insect galls on chestnut trees and results in massive yield losses worldwide. Fungi can cause the necrosis of death wasps. The aim this research was to investigate potential role D. transmission fungi. We sequenced ribosomal RNA internal transcribed spacer region 1 fungi adults, associated galled twigs Castanea mollissima, using high-throughput sequencing. compared species richness, α-diversity community structure...

The classical model of juvenile hormone (JH)-mediated wing polymorphism was proposed in the early 1960s, and numerous studies have tested this using exogenous treatment. However, indirect method may yield misleading results, necessitating direct quantification JH titers insects. In study, effects application on development comparisons hemolymph between presumptive long-winged (LW) short-winged (SW) nymphs cricket Velarifictorus aspersus (Walker) are investigated. results show that treatment...

Abstract V elarifictorus ornatus ( S hiraki) O rthoptera: G ryllidae) display distinct wing variation, and a physiological trade‐off between reproduction flight muscles has been observed in long‐winged LW ) short‐winged SW females. To understand the basis of this trade‐off, we investigated difference food digestion capability digestive enzyme activity We found that efficiency conversion digested into body matter females was significantly higher than females, although there no approximate...

1. Female insects of many species lay both fertilised and unfertilised eggs, with the latter accounting for up to 50% total number laid. These eggs do not hatch so their relevance is unclear. 2. In present study, it was found that nymphs cricket Velarifictorus aspersus ate regardless whether there other food available. This provision enabled develop successfully when no provided, gain additional body mass available under crowded conditions. results suggest have an important role in survival...

HomePlant DiseaseVol. 103, No. 5First Report of Neofusicoccum parvum Associated with Blotch Trunk Disease Koelreuteria paniculata in China PreviousNext DISEASE NOTES OPENOpen Access licenseFirst ChinaX. M. Fang, Y. L. Zeng, Z. J. Li, S. and T. H. ZhuX. FangCollege Forestry, Sichuan Agricultural University, Chengdu, Province, 611130, P.R. China, ZengCollege LiCollege Li†Corresponding author: Li; E-mail Address: lishujiangsumer@163.comhttp://orcid.org/0000-0002-6573-9733College ZhuCollege...

Abstract Wolbachia (Hertig) (Rickettsiales: Anaplasmataceae) are maternally inherited endosymbiotic bacteria that widely present in nematodes and arthropods. These endosymbiont receive significant research attention because they can have important effects on the biology of their hosts. Here, we first detailed analyses crickets from China, with screening 23 species eight genera. In total, 21 genera were positive for Wolbachia. Significant diversity was observed among strains based five...

Abstract A trade‐off between flight and reproduction has been well studied in wing dimorphic female insects but less attention given to this males. In study, the authors analysed differences calling behaviours of long‐winged (LW) short‐winged (SW) male Velarifictorus aspersus crickets. Furthermore, examined effects dealation on behaviour LW males, as preferences regarding songs The results showed that SW males sang more often than during first 9 days after emergence, there were no...

A new species of gall inquiline, Synergus dilatatus sp. nov. , is described from Hubei Province, China. Morphological descriptions, photographs and biological information are provided. Mitochondrial cytochrome oxidase (COI) sequences the were newly obtained a molecular delimitation analysis 12 performed using ASAP method recovered 16 operational taxonomic units, providing support for recognition species. The results also highlight few conflicts between morphological delimitations in .

A new species of inquiline gall wasp, Synergus nanlingensis Wang & Zeng, sp. nov. , which was reared from galls on Castanopsis eyrei Tutch (Fagaceae) collected in Guangdong Province, China, is described and illustrated herein along with its mitochondrial genome. The mitogenome S. 16,604 base pairs length comprises 37 genes, typical mitogenomes. One large control region detected the mitogenome, differed that reported for other Cynipidae species. Similar to species, has same four common...

A new species of gall wasp, Andricus wugangensis Zeng, Liu, & Zhu sp. nov. is described and illustrated herein from Hunan Province, China. The most similar to A. wuhanensis Ide, Abe, Su xishuangbanaensis Melika Tang in morphology but can be easily distinguished by having 1) a large V-shaped carina on the lower face 2) broad transverse depression spanning region between inner margin eyes upper face. results phylogenetic analysis pairwise genetic distance comparison, based COI sequences,...

A trade-off between the capacity for flight and reproduction has been documented extensively in wing polymorphic female insects, thereby supporting possible fitness gain due to flightlessness. However, most of these studies were conducted without considering effect behavior. In present study, we assessed duration by long-winged (LW) females cricket species Velarifictorus aspersus on different days after adult emergence examined ovarian development LW with capacities. Our results showed that...