THE INTERTIDAL CHIRONOMIDAE (DIPTERA) OF BRITISH COLUMBIA: I. KEYS TO THEIR LIFE STAGES

1972 ◽  
Vol 104 (7) ◽  
pp. 1093-1098 ◽  
Author(s):  
Richard L. Morley ◽  
Richard A. Ring
Keyword(s):  
British Columbia ◽  
Life Stages ◽  
Taxonomic Character ◽  
Adult Males

AbstractIntertidal Chironomidae (Diptera) are represented on the coast of British Columbia by Paraclunio alaskensis Coquillett and Saunderia pacificus Saunders, S. marinus Saunders, and S. clavicornis Saunders. The larvae, pupae, and adult males can now be easily identified with the aid of the new keys. The mentum of the labium was found to be an especially useful taxonomic character for the separation of the larvae of these four species.

scholarly journals Hide-and-Seek with Tiny Neotenic Beetles in One of the Hottest Biodiversity Hotspots: Towards an Understanding of the Real Diversity of Jurasaidae (Coleoptera: Elateroidea) in the Brazilian Atlantic Forest

Biology ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 420
Author(s):  
Gabriel Biffi ◽  
Simone Policena Rosa ◽  
Robin Kundrata
Keyword(s):  
Atlantic Forest ◽  
Field Research ◽  
Transitional Zone ◽  
Biodiversity Hotspot ◽  
Biodiversity Hotspots ◽  
Brazilian Atlantic Forest ◽  
Life Stages ◽  
Adult Males ◽  
Undescribed Species ◽  
First Time

Jurasaidae are a family of neotenic elateroid beetles which was described recently from the Brazilian Atlantic Forest biodiversity hotspot based on three species in two genera. All life stages live in the soil, including the larviform females, and only adult males are able to fly. Here, we report the discovery of two new species, Jurasai miraculum sp. nov. and J. vanini sp. nov., and a new, morphologically remarkable population of J. digitusdei Rosa et al., 2020. Our discovery sheds further light on the diversity and biogeography of the group. Most species of Jurasaidae are known from the rainforest remnants of the Atlantic Forest, but here for the first time we report a jurasaid species from the relatively drier Atlantic Forest/Caatinga transitional zone. Considering our recent findings, minute body size and cryptic lifestyle of all jurasaids, together with potentially high numbers of yet undescribed species of this family from the Atlantic Forest and possibly also other surrounding ecoregions, we call for both field research in potentially suitable localities as well as for a detailed investigation of a massive amount of already collected but still unprocessed materials deposited in a number of Brazilian institutes, laboratories and collections.

THE STAGES OF ERANNIS VANCOUVERENSIS (LEPIDOPTERA: GEOMETRIDAE) AND LIFE HISTORY NOTES

1973 ◽  
Vol 105 (4) ◽  
pp. 605-612 ◽  
Author(s):  
David Evans
Keyword(s):  
British Columbia ◽  
Life History ◽  
Virus Disease ◽  
Pupal Stage ◽  
Early Spring ◽  
Deciduous Trees ◽  
Life Stages ◽  
Larval Instars ◽  
Central California ◽  
Young Leaves

AbstractErannis vancouverensis Hulst occurs from northern British Columbia to central California, and has been occasionally reported at infestation levels. The larvae feed on young leaves of several species of deciduous trees; winter is passed in the egg or sometimes in the pupal stage; adults emerge during late autumn or occasionally during winter or early spring; females are wingless. The life stages, including larval instars, are described here in detail. Virus disease and parasitism by tachinid flies help control the species.

Baeomyia n.g. (Diptera: Tachinidae): descriptions and notes about phylogenetic and zoogeographic relationships

1984 ◽  
Vol 62 (7) ◽  
pp. 1387-1396
Author(s):  
James E. O'Hara
Keyword(s):  
British Columbia ◽  
North America ◽  
Distribution Pattern ◽  
Type Species ◽  
American Southwest ◽  
Western North America ◽  
Adult Males ◽  
Phylogenetic Data ◽  
Males And Females ◽  
The Relationship

Baeomyia n.g. is described for a group of small (2–3 mm long) tachinids belonging to the Siphona group of the Siphonini. All known specimens were collected in western North America, with two species recorded from southern British Columbia (Baeomyia xanthogaster n. sp. and Baeomyia juniperi n. sp.) and three species recorded from desert localities in the American Southwest (type-species Baeomyia hurdi (Reinhard), Baeomyia antennata n. sp. and Baeomyia sonorensis n. sp.). Keys to adult males and females are provided for separation of species. Systematics of the Siphonini and Siphona group are reviewed, including a discussion of the synapomorphies upon which each is defined. Baeomyia species are inferred to form a monophyletic taxon within the Siphona group on the basis of five synapomorphies, though the relationship between the genus and other Siphona group taxa is unresolved. The apparent disjunction of Baeomyia species into northern and southern ranges may be the result of relatively recent speciation events, because differences among species are slight. A detailed zoogeographic analysis of the distribution pattern must await further phylogenetic data.

Spatial Patterns of Yearling Male Blue Grouse and Their Relation to Recruitment into the Breeding Population

The Auk ◽  
1983 ◽  
Vol 100 (3) ◽  
pp. 653-657 ◽  
Author(s):  
Ian G. Jamieson ◽  
Fred C. Zwickel
Keyword(s):  
British Columbia ◽  
Spatial Patterns ◽  
Radio Telemetry ◽  
Breeding Population ◽  
Adult Males ◽  
Costs And Benefits ◽  
Breeding Range ◽  
Dendragapus Obscurus ◽  
Different Types ◽  
Occupied Territories

Abstract Movements of yearling male Blue Grouse (Dendragapus obscurus) were monitored by radio telemetry during the springs of 1980 and 1981, on Hardwicke Island, British Columbia. The locations of the birds were clumped around territories of adult males. Most birds were associated with a few occupied territories, others settled near vacant sites that had been used as territories in previous years, and a few moved widely over the breeding range. Some territories attracted more yearlings than others. Presumed costs and benefits that may be associated with different types of spatial patterns of yearling males are discussed.

Life history, trophic behavior, and description of Gamasellodes vermivorax n. sp. (Mesostigmata: Ascidae), a predator of nematodes and arthropods in semiarid grassland soils

1987 ◽  
Vol 65 (7) ◽  
pp. 1689-1695 ◽  
Author(s):  
David Evans Walter
Keyword(s):  
Life History ◽  
Sex Determination ◽  
Adult Female ◽  
Generation Time ◽  
Life Stages ◽  
Adult Males ◽  
Microcosm Experiment ◽  
Grassland Soils ◽  
Semiarid Grassland ◽  
Determination Mechanism

All life stages of Gamasellodes vermivorax n. sp. (Mesostigmata: Ascidae), a predator of mites, collembolans, and nematodes in semiarid grassland soils, are described. Female to female generation time is 10 days on a diet of rhabditid nematodes at 24 °C. Each adult female may produce one to three eggs daily for at least 2 weeks. Female deutonymphs are guarded by adult males. Isolated female deutonymphs molt to adults which begin laying eggs within 48 h of emergence. All eggs laid by unfertilized females develop into males, indicating a haplodiploid sex determination mechanism. In a microcosm experiment, nematode densities were negatively correlated with G. vermivorax densities.

scholarly journals Description of life stages of dung beetle Scaptodera rhadamistus (Fabricius, 1775) (Coleoptera: Scarabaeidae: Scarabaeinae) with notes on nesting and biology

2018 ◽  
Vol 10 (15) ◽  
pp. 12990-12994
Author(s):  
Suvarna S. Khadakkar ◽  
Ashish D. Tiple ◽  
Arun M. Khurad
Keyword(s):  
Dung Beetle ◽  
Female Genitalia ◽  
Immature Stages ◽  
Life Stages ◽  
Adult Males ◽  
Male And Female ◽  
Males And Females ◽  
First Time ◽  
Support Projection

Immature stages of Scaptodera rhadamistus (Fabricius) are described for the first time along with notes on nidification and biology.  The larvae differ from other Scarabaeinae species in the structure of raster on tenth sternum with two irregular bunches of serrations ventrally one on either half.  Pupae with pronotum transverse having rounded margins resemble adults, and consist of four lateral, single caudal and single pteronotal support projection.  Adult males and females differ in coloration, structure of pronotum, presence of spine like process on mesosternum and, in the structure of male and female genitalia.

A STUDY OF THE BLUE GROUSE (DENDRAGAPUS OBSCURUS (SAY)) ON VANCOUVER ISLAND, BRITISH COLUMBIA

1960 ◽  
Vol 38 (4) ◽  
pp. 701-713 ◽  
Author(s):  
C. David Fowle
Keyword(s):  
British Columbia ◽  
Feeding Habits ◽  
Free Water ◽  
Breeding Cycle ◽  
Adult Males ◽  
Seasonal Movements ◽  
Second Growth ◽  
Dendragapus Obscurus ◽  
In Captivity ◽  
Main Item

A study was made of the summer habitat, seasonal movements, fluctuations in populations, population density, breeding cycle, and summer feeding habits of Dendragapus obscurus fuliginosus (Ridgway). During the summer the grouse were found mainly in the early stages of the developing second-growth forests following fire or logging. The birds descended to the lowlands in late March and early April. Most of the adult males returned to the uplands by the end of July, The females and broods left the lowlands by the end of September. There is evidence of several well-marked fluctuations in the numbers of blue grouse in British Columbia since 1904. A density of about.2 adults per acre was recorded in late June and early July. Nesting took place in May and the first young appeared early in June. After the first of July it was not uncommon to see two females with their intermingled broods feeding together. The summer foods of both adults and young were almost entirely vegetable. Grit was the main item in gizzards from birds collected before the middle of July but later it was largely replaced by hard seeds. The grouse were not observed to drink free water except in captivity. There is a rough parallelism between frequency of occurrence of the main items of food in the environment and the proportion of each occurring in the diet.

Descriptions of three new species of Psychodidae (Diptera) from the southeastern United States

Zootaxa ◽  
2010 ◽  
Vol 2524 (1) ◽  
pp. 51 ◽  
Author(s):  
GREGORY R. CURLER ◽  
JOHN K. MOULTON
Keyword(s):  
United States ◽  
New Species ◽  
Southeastern United States ◽  
Life Stages ◽  
Adult Males ◽  
Males And Females ◽  
Three New Species

Adult males and females of Trichomyia styloryncha sp. nov. and Australopericoma delta sp. nov., and all life stages of Threticus thelyceratus sp. nov. were collected during various biodiversity surveys in the southeastern United States. Descriptions of these three new species are given.

Life stages and phylogenetic position of the wool carder bee mite Sennertionyx manicati (Acari: Acaridae)

Zootaxa ◽  
2020 ◽  
Vol 4857 (1) ◽  
pp. 160-195
Author(s):  
QING-HAI FAN ◽  
DONGMEI LI ◽  
SHERLY GEORGE
Keyword(s):  
Phylogenetic Analysis ◽  
New Zealand ◽  
Molecular Analysis ◽  
Phylogenetic Trees ◽  
Developmental Stages ◽  
Phylogenetic Position ◽  
Life Stages ◽  
Adult Males ◽  
The Family ◽  
Anthidium Manicatum

In mites of the family Acaridae, usually two developmental stages, adult (males, females) and deutonymphal stage (=hypopus) are used for diagnostic descriptions. Because these taxonomically important stages live in different habitats (i.e. deutonymphs are phoretic on a hymenopteran host, while adults live inside the nest of the host), one of these can be missing or they cannot be confidently corelated with each other. Sennertionyx manicati (Acari: Acaridae) was only known from hypopus. Herein, we describe all post-embryonic stages of S. manicati based on material obtained from a nest of Anthidium manicatum in Auckland, New Zealand, and provide a key to all life stages of this species. We also conducted a phylogenetic analysis of the 18S gene and the D2/D3 region of 28S genes from field-collected specimens and GenBank data. The molecular analysis indicated the New Zealand specimen shared the identical 18S and 99.5% identity of the D2D3 region of 28S sequences with S. manicati from Italy, and clustered together in the phylogenetic trees. 

scholarly journals Mechanism of the Passage of Angiostrongylus cantonensis Across the Final Host Blood-Brain Barrier Using the Next-Generation Sequencing

2021 ◽  
Author(s):  
Yue Guo ◽  
Hai Yan Dong ◽  
Hong Chang Zhou ◽  
Zhong Shan Zhang ◽  
Yu Zhao ◽  
...  
Keyword(s):  
Blood Brain Barrier ◽  
Adult Stage ◽  
Final Host ◽  
Brain Barrier ◽  
Receptor Interaction ◽  
Life Stages ◽  
Adult Males ◽  
Potential Mechanism ◽  
Illumina Hiseq ◽  
Blood Brain

Background: Multicellular parasites Angiostrogylus cantonensis larvae develop in the final host rat brain at the fourth stage (L4) and migrate to the lungs by the adult stage. The potential mechanism of its blood-brain barrier (BBB) passage remains unclear. Methods: By using Illumina Hiseq/Miseq sequencing, we obtained the transcriptomes of 3 groups of adult males and 3 groups of female of A. cantonensis to generate similarly expressed genes (SEGs) between 2 genders at the adult stage. Next 2 groups of L4 expressed genes were used to compared with SEGs to create differentially expressed genes (DEGs) between 2 life stages to unlock potential mechanism of BBB passage. Results: In total, we obtained 381 581 802 clean reads and 56 990 699 010 clean bases. Of these, 331 803 unigenes and 482 056 transcripts were successfully annotated. A total of 3 166 DEGs between L4 and adults SEGs were detected. Annotation of these DEGs showed 167 were down-regulated and 181 were up-regulated. Pathway analysis exhibited that calcium signaling pathway, the ECM−receptor interaction, focal adhesion, and cysteine and methionine metabolism were highly associated with DEGs. The function of these pathways might be related to BBB traversal, as well as neuro-regulation, interactions between parasite and host, environmental adaption. Conclusion: This study expanded the regulatory characteristics of the two important life stages of A. cantonensis. This information may provide a better appreciation of the biological features of the stages of the parasitic A. cantonensis.

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