Empidomermis cozii n.gen., n.sp. (Mermithidae: Nematoda) a parasite of Anopheles funestus (Culicidae: Diptera) in West Africa

1977 ◽  
Vol 55 (9) ◽  
pp. 1475-1479 ◽  
Author(s):  
George O. Poinar Jr.
Keyword(s):  
Blood Meal ◽  
New Genus ◽  
Adult Stage ◽  
Anopheles Funestus ◽  
Mosquito Larvae ◽  
New Genus And Species ◽  
Body Width ◽  
Adult Females ◽  
Mermithid Nematode ◽  
Upper Volta

A new genus and species of mermithid nematode parasitizing adult females of Anopheles funestus (Giles) in Upper Volta is described. The new genus Empidomermis is characterized by having six head papillae, eight hypodermal cords, cuticle without noticeable cross fibers, two short slightly curved spicules (equal to or less than body width at cloaca), a relatively short S-shaped vagina, small amphids, and postparasitic juveniles with a well-developed tail appendage.The nematodes could only be successfully reared to maturity if the hosts were held on glucose 3–4 days after the blood meal. Postparasitic juvenile mermithids molted to the adult stage about 17 days after leaving their mosquito hosts and mating and oviposition occurred immediately afterwards. The eggs hatched about 54 days after oviposition when mosquito larvae were added to the container. Parasitized adult female A. funestus were sterilized and died soon after the nematodes emerged.

Amazoniaseius imparisetosus n. sp., n. g.: an unusual new phytoseiid mite (Acari: Phytoseiidae) from the Amazon forest

Zootaxa ◽  
2017 ◽  
Vol 4236 (2) ◽  
pp. 302
Author(s):  
PETERSON R. DEMITE ◽  
WILTON P. da CRUZ ◽  
JAMES A. McMURTRY ◽  
GILBERTO J. De MORAES
Keyword(s):  
Posterior Margin ◽  
New Genus ◽  
Brazilian Amazon ◽  
Amazon Forest ◽  
New Taxon ◽  
Phytoseiid Mite ◽  
Dorsal Shield ◽  
New Genus And Species ◽  
Adult Females ◽  
Dichotomous Key

A new genus and species of the subfamily Typhlodrominae are described from the Brazilian Amazon. The main differences between this and all other phytoseiid species are the presence of two unpaired setae on dorsal shield of deutonymphs and adults, and the absence of all ZV setae. It also differs from other typhlodromine species by its relatively long J5 setae, the presence of seta J4 and the broadly rounded posterior margin of the genital shield. Thus, the unique idiosomal setal pattern of this species is here designated as 13A+x:8F+X/JV-3,4:ZV-1–3. Because of the unique characteristics, we here describe this new taxon, Amazoniaseius imparisetosus n. sp., n. g., based on protonymphs, deutonymphs and adult females. This species is accommodated in tribe Paraseiulini Wainstein within Typhlodrominae, due to the presence of the setae z6 and S4. The tribe is redefined and an updated dichotomous key for the separation of the genera of Paraseiulini is provided. 

Plecopteracoluthus downesi gen. et sp. nov. (Diptera: Chironomidae), a Species Whose Larvae Live Phoretically on Larvae of Plecoptera

1965 ◽  
Vol 97 (12) ◽  
pp. 1323-1344 ◽  
Author(s):  
A. W. Steffan
Keyword(s):  
New Genus ◽  
Adult Stage ◽  
Immature Stages ◽  
New Genus And Species ◽  
Life Pattern ◽  
The Common ◽  
Laboratory Life ◽  
Common Ancestors

AbstractIn a creek northwest of the Gatineau Hills (Quebec) larvae of Chironomidae (Diptera) were found living in phoretic association with the immature stages of Perlidae (Plecoptera). The larvae were reared to the adult stage in the laboratory. Life pattern and morphological comparisons are made with other phoretic and parasitic forms of Orthocladiinae and with certain other genera, and it is concluded that the form represents a new genus and species of Orthocladiini, and has probably originated from the common ancestors of the genera Rheocricotopus, Paracricotopus and Microcricotopus. Detailed descriptions are given of the imago, pupa and larva of this insect.

scholarly journals Larval ecology and bionomics of Anopheles funestus in highland and lowland sites in western Kenya

PLoS ONE ◽  
2021 ◽  
Vol 16 (10) ◽  
pp. e0255321
Author(s):  
Isaiah Debrah ◽  
Yaw A. Afrane ◽  
Linda E. Amoah ◽  
Kevin O. Ochwedo ◽  
Wolfgang R. Mukabana ◽  
...  
Keyword(s):  
Blood Meal ◽  
Control Strategies ◽  
Mosquito Species ◽  
Anopheles Funestus ◽  
Principal Component ◽  
Mosquito Larvae ◽  
Aquatic Habitats ◽  
Larval Ecology ◽  
Western Kenya ◽  
Sporozoite Infection

Background An. funestus is a major Afrotropical vector of human malaria. This study sought to investigate the larval ecology, sporozoite infection rates and blood meal sources of An. funestus in western Kenya. Methods Larval surveys were carried out in Bungoma (Highland) and Kombewa (lowland) of western Kenya. Aquatic habitats were identified, characterized, georeferenced and carefully examined for mosquito larvae and predators. Indoor resting mosquitoes were sampled using pyrethrum spray catches. Adults and larvae were morphologically and molecularly identified to species. Sporozoite infections and blood meal sources were detected using real-time PCR and ELISA respectively. Results Of the 151 aquatic habitats assessed, 62/80 (78%) in Bungoma and 58/71(82%) in Kombewa were positive for mosquito larvae. Of the 3,193 larvae sampled, An. funestus larvae constitute 38% (1224/3193). Bungoma recorded a higher number of An. funestus larvae (85%, 95%, CI, 8.722–17.15) than Kombewa (15%, 95%, CI, 1.33–3.91). Molecular identification of larvae showed that 89% (n = 80) were An. funestus. Approximately 59%, 35% and 5% of An. funestus larvae co-existed with An. gambiae s.l, Culex spp and An. coustani in the same habitats respectively. Of 1,221 An. funestus s.l adults sampled, molecular identifications revealed that An. funestus constituted 87% (n = 201) and 88% (n = 179) in Bungoma and Kombewa, respectively. The Plasmodium falciparum sporozoite rate of An. funestus in Bungoma and Kombewa was 2% (3/174) and 1% (2/157), respectively, and the human blood index of An. funestus was 84% (48/57) and 89% (39/44) and for Bungoma and Kombewa, respectively. Conclusion Man-made ponds had the highest abundance of An. funestus larvae. Multiple regression and principal component analyses identified the distance to the nearest house as the key environmental factor associated with the abundance of An. funestus larvae in aquatic habitats. This study serves as a guide for the control of An. funestus and other mosquito species to complement existing vector control strategies.

scholarly journals Larval ecology and bionomics of Anopheles funestus in highland and lowland sites in western Kenya

2021 ◽  
Author(s):  
Isaiah Debrah ◽  
Yaw A Afrane ◽  
Linda E. Amoah ◽  
Kevin O. Ochwedo ◽  
Wolfgang R. Mukabana ◽  
...  
Keyword(s):  
Blood Meal ◽  
Control Strategies ◽  
Mosquito Species ◽  
Anopheles Funestus ◽  
Principal Component ◽  
Mosquito Larvae ◽  
Aquatic Habitats ◽  
Larval Ecology ◽  
Western Kenya ◽  
Falciparum Sporozoite

Background An. funestus is a major Afrotropical vector of human malaria. This study sought to investigate the larval ecology, sporozoite infection rates and blood meal sources of An. funestus in western Kenya. Methods Larval surveys were carried out in Bungoma (Highland) and Kombewa (lowland) of western Kenya. Aquatic habitats were identified, characterized, georeferenced and carefully examined for mosquito larvae and predators. Indoor resting mosquitoes were sampled using pyrethrum spray catches. Adults and larvae were morphologically and molecularly identified to species. Sporozoite infections and blood meal sources were detected using real-time PCR and ELISA respectively. Results Of the 151 aquatic habitats assessed, 62/80 (78%) in Bungoma and 58/71(82%) in Kombewa were positive for mosquito larvae. Of the 3,193 larvae sampled, An. funestus larvae constitute 38% (1224/3193). Bungoma recorded a higher number of An. funestus larvae (85%, 95%, CI, 8.722- 17.15) than Kombewa (15%, 95%, CI, 1.33- 3.91). Molecular identification of larvae showed that 89% (n=80) were An. funestus . Approximately 59%, 35% and 5% of An. funestus larvae co-existed with An. gambiae s.l , Culex spp and An. coustani in the same habitats respectively. Of 1,221 An. funestus s.l adults sampled, molecular identifications revealed that An. funestus constituted 87% (n=201) and 88% (n=179) in Bungoma and Kombewa, respectively. The Plasmodium falciparum sporozoite rate of An. funestus in Bungoma and Kombewa was 2% (3/174) and 1% (2/157), respectively, and the human blood index of An. funestus was 84% (48/57) and 89% (39/44) and for Bungoma and Kombewa, respectively. Conclusion Man-made ponds had the highest abundance of An. funestus larvae. Multiple regression and principal component analyses identified the distance to the nearest house as the key environmental factor associated with the abundance of An. funestus larvae in aquatic habitats . This study serves as a guide for the control of An. funestus and other mosquito species to complement existing vector control strategies.

Primaspis: A New Genus of Diaspididae (Homoptera: Coccoidea) from the Southwestern United States

1995 ◽  
Vol 30 (2) ◽  
pp. 202-207
Author(s):  
James O. Howell
Keyword(s):  
United States ◽  
New Mexico ◽  
New Genus ◽  
Southwestern United States ◽  
New Genus And Species ◽  
Adult Females ◽  
Armored Scale

A new genus and species of armored scale close to Rugaspidiotus is described and illustrated. In Primaspis gen. nov., from New Mexico, the adult females are separable from Rugaspidiotus in having gland spines on the pygidial margin, well defined median lobes, and a bilobed second lobe. In the first instars, the antennae are 6 segmented, there is no row of ventral submedian abdominal setae, and no elongate setae on the tarsi.

A new genus and species of Epicriidae (Acari, Mesostigmata) from eastern North America

2005 ◽  
Vol 137 (5) ◽  
pp. 539-550 ◽  
Author(s):  
María L. Moraza
Keyword(s):  
New York ◽  
North America ◽  
West Virginia ◽  
New Genus ◽  
Eastern North America ◽  
New Genus And Species ◽  
Key To Species ◽  
Adult Females

AbstractA new genus, Adenoepicriusgen. nov., is described, with Adenoepicrius magnussp. nov. from Canada designated as type. Also described are A. oconnorisp. nov. (New York, Ontario), A. curtipilussp. nov. (Virginia), and A. virginianussp. nov. (West Virginia). A key to species based on adult females is provided.

scholarly journals A new genus and species of Digamasellidae (Acari: Mesostigmata) displaying some extraordinary gnathosomal structures

Acarologia ◽  
2021 ◽  
Vol 61 (4) ◽  
pp. 967-977
Author(s):  
Farid Faraji ◽  
Mohsen Zare ◽  
Hasan Rahmani
Keyword(s):  
New Genus ◽  
The Other ◽  
Tree Trunk ◽  
Fruiting Bodies ◽  
New Genus And Species ◽  
Adult Females

A new genus and species of digamasellid mites is described based on adult females and males. Bulbolaelaps bossei n. gen., n. sp. was collected from the fruiting bodies of gilled fungi on a tree trunk in Zanjan province, Iran. The new genus can be distinguished from the other genera of Digamasellidae by having a bulbous swollen protuberance on the venter of the palptrochanter; corniculi weakly formed and epistome weakly sclerotised; hypostomal setae h1 and h2 positioned more or less transversely; deutosternal groove narrow with limited number of denticles; ventral base of female cheliceral digit with a spine-like projection; and setae ad1 and pd1 tarsi II–IV narrowly lanceolate apically.

A new genus and species of cryptic Asian green pitviper (Serpentes: Viperidae: Crotalinae) from southwest China

Zootaxa ◽  
2011 ◽  
Vol 2918 (1) ◽  
pp. 1 ◽  
Author(s):  
PENG GUO ◽  
YUEZHAO WANG
Keyword(s):  
New Species ◽  
New Genus ◽  
Southwest China ◽  
Large Body ◽  
Sister Group ◽  
Morphological Characters ◽  
New Genus And Species ◽  
Body Dimension ◽  
Large Body Size ◽  
Adult Females

A new genus and species of Asian green pitviper is described from Southwest China based on two female specimens. A new DNA phylogeny recovers the two specimens of the new species as a well-supported clade that is sister group to all sampled representatives of the genera Viridovipera and Cryptelytrops. The new genus is distinguished from other pitviper genera by a combination of morphological characters, including the absence of a lateral stripe, large body size, and deep red eye in adult females. Morphologically the new species is superficially most similar to species of Popeia in body dimension and scalation, but is genetically extremely distinct. The new genus/species is currently known only from south Sichuan, where it was found at about 1000 m above sea level in less disturbed evergreen rainforest.

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