ABSTRACT
The known mosquito fauna of Glacier National Park, Montana, and Yellowstone National Park, Wyoming, is reported with new records, including a list of the species of Chaoboridae known from both parks. Ochlerotatus nevadensis (= Aedes nevadensis) from Glacier National Park is a new record for the state of Montana.
Subject(s)
Biodiversity , Culicidae , Animals , Montana , Ochlerotatus , WyomingABSTRACT
Twenty-nine mosquito species belonging to 4 genera are reported for Glacier National Park, Montana. These include 22 originally reported by H.G. Dyar and 7 additional records, one of which, Ochlerotatus euedes (=Aedes eueedes) is a new state record for Montana.
Subject(s)
Culicidae/classification , Animals , Culicidae/physiology , Demography , MontanaABSTRACT
Ochlerotatus dahlae, a new mosquito species from the mountain valleys of Utah, is compared to its closest related species, Ochlerotatus excrucians, and the characteristics that separate the two species are delineated.
Subject(s)
Aedes/classification , Aedes/anatomy & histology , Aedes/growth & development , Animals , Female , Genitalia/anatomy & histology , Larva/anatomy & histology , Larva/classification , Larva/growth & development , Male , Phylogeny , Species Specificity , UtahABSTRACT
Coelomomyces utahensis is a fungal parasite of several genera of mosquitoes that inhabit rock-pools in southern Utah. Studies of the biology of Coelomomyces and their potential use in biological control of mosquitoes have been hindered by their complex life history, lack of axenic culture methods, and logistical problems producing their arthropod hosts for in vivo culture. In the case of C. utahensis, we have identified the alternate microcrustacean host as Potamocypris unicaudata, which is an ostracod that can be easily reared in abundance and stored for long periods. Described here are the life cycle and culturing of C. utahensis.
Subject(s)
Coelomomyces/growth & development , Microbiological Techniques , Aedes/parasitology , Animals , Crustacea/microbiology , Crustacea/physiology , Crustacea/radiation effects , Light , UtahABSTRACT
Culicid larvae were collected in snow-melt pools during the first half of June from 1975-1977 and 1995-1996 in the Abisko Valley, Torne Lapmark, northern Sweden. Twelve species were collected from 102 pools and 81 localities with 7,914 specimens (elevations from 300 to 650 m a.s.l.). Fourteen species are now known from the area. Ten types of larval habitats were classified and ten species were statistically analyzed on pooled values over all years for abundance, coexistence, and diversity. The greatest abundance of individuals had pools with Carex spp. on the bottom. Most widespread and abundant were Oc. hexodontus (Dyar), Oc. communis (DeGeer), Oc. pullatus (Coquillett), and Oc. punctor (Kirby). The two circumpolar, arctic species, Oc. nigripes (Zetterstedt) and Oc. impiger (Walker), were mainly confined to elevations above 400 m a.s.l. In such marginal habitats as these pools, exposed to variable abitotic conditions, the phenology of species was rather constant. Species diversity varied somewhat between habitats. Oc. hexodontus, Oc. communis, and Oc. pullatus most often occupied pools as single species. Oc. communis and Oc. hexodontus had the highest values for coexistence and also occurred with Oc. punctor. The habitats that were richest in species were those without vegetation or with detritus on the bottom and surrounded by Empetrum nigrum and Betula nana. These habitats contained between eight and ten species. Species abundance and coexistence over the years showed no stable species patterns for the habitat types in the area.
