A morphological study of the Anopheles punctulatus group (Diptera: Culicidae) in the Solomon Islands, with a description of Anopheles (Cellia) irenicus Schmidt, sp.n.

2003 ◽  
Vol 93 (6) ◽  
pp. 515-526 ◽  
Author(s):  
E.R. Schmidt ◽  
D.H. Foley ◽  
H. Bugoro ◽  
J.H. Bryan

AbstractA description of Anopheles (Cellia) irenicus Schmidt, sp.n. (formerly A. farauti No. 7) is provided. This species is one of six recorded from the Solomon Islands within the A. punctulatus group, which contains the major vectors of the causative agents of malaria and lymphatic filariasis in the southwest Pacific. Morphological markers are described for adult females, fourth-instar larvae and pupae that identify most specimens of A. irenicus. Keys are presented to distinguish members of the A. punctulatus group in the Solomon Islands.

2001 ◽  
Vol 91 (5) ◽  
pp. 389-410 ◽  
Author(s):  
E.R. Schmidt ◽  
D.H. Foley ◽  
G.F. Hartel ◽  
G.M. Williams ◽  
J.H. Bryan

AbstractDescriptions of the three sibling species of theAnopheles farauticomplex in Australia,A. farautiLaveran (formerlyA. farautiNo. 1),A. hinesorumSchmidtsp.n. (formerlyA. farautiNo. 2) andA. torresiensisSchmidtsp.n. (formerlyA. farautiNo. 3) are provided. These species form a part of thepunctulatusgroup, which contains the major malaria vectors in the southwest Pacific. Morphological markers are described for adult females, fourth instar larvae and pupae which identify most specimens, and are in keys.


1982 ◽  
Author(s):  
Tau Rho Alpha ◽  
W.A. Austin ◽  
Jim M. Morley

2008 ◽  
Vol 8 (1) ◽  
pp. 318 ◽  
Author(s):  
Arif U Hasan ◽  
Setsuo Suguri ◽  
Chigusa Fujimoto ◽  
Rodney L Itaki ◽  
Masakazu Harada ◽  
...  

Zootaxa ◽  
2009 ◽  
Vol 2078 (1) ◽  
pp. 1-33 ◽  
Author(s):  
SHAHYAD AZARI-HAMIDIAN ◽  
RALF E. HARBACH

Taxonomic keys are provided for the identification of the adult females and fourth-instar larvae of Iranian mosquitoes (Diptera: Culicidae), which include 64 species and three subspecies belonging to seven genera. The keys also include 12 species recorded in old literature that have not been collected recently, but are known to occur elsewhere in southwestern Asia. Aedes albopictus (Skuse) is not known to occur in Iran, but it is included in the keys because it has been established in many countries in the region during recent decades, and it is medically important. Newly recorded species, new characters, drawings illustrating characters used in the keys, and some notes are included to aid the identification of the species. The keys are based on recently collected specimens and museum collections, as well as taxonomic literature.


2005 ◽  
Vol 18 (5) ◽  
pp. 719-736 ◽  
Author(s):  
Neil J. Holbrook ◽  
Peter S-L. Chan ◽  
Silvia A. Venegas

Abstract This paper investigates oscillatory and propagating patterns of normalized surface and subsurface temperature anomalies (from the seasonal cycle) in the southwest Pacific Ocean using an extended empirical orthogonal function (EEOF) analysis. The temperature data (and errors) are from the Digital Atlas of Southwest Pacific upper Ocean Temperatures (DASPOT). These data are 3 monthly in time (January, April, July, and October), 2° × 2° in space, and 5 m in the vertical to 450-m depths. The temperature anomalies in the EEOF analysis are normalized by the objective mapping temperature errors at each grid point. They are also Butterworth filtered in the 3–7-yr band to examine interannual variations in the temperature field. The oscillating and propagating patterns of the modes are examined across four vertical levels: the surface, and 100-, 250-, and 450-m depths. The dominant mode EEOF (70% of the total variance of the filtered data) oscillates in a 4–4.5-yr quasi-periodic manner that is consistent with El Niño–Southern Oscillation (ENSO). Anomalies peak first at the surface in the subtropics between New Caledonia and Fiji (centered around 17°S, 177°E), then 6 months later in the tropical far west centered around the Solomon Islands (5°S, 153°–157°E), with a maximum at the base of the mixed layer (100 m) and upper thermocline (250 m), and then eastward in the northeast of the southwest Pacific region (0°–10°S, 160°E–180°). Mode 2 (25% variance of the filtered data) has a periodicity of 3–3.5 yr, with centers of action in all four vertical levels. The mode-2 patterns are consistent with variations in the subtropical gyre circulation, including the East Australian Current and its separation, and are continuous with the Tasman Front. Two spatial dipoles are apparent: (i) one in sea surface temperature (SST) at about 5°S, straddling west–east either side of the Solomon Islands, consistent with the classic Pacific-wide ENSO SST anomaly mode, and (ii) a subsurface dipole pattern, with centers in the Solomon Islands region at 100- and 250-m depths, and the western Tasman Sea (27°–33°S, 157°–161°E) at 250- and 450-m depths, consistent with dynamic changes in the gyre intensity.


1974 ◽  
Vol 106 (10) ◽  
pp. 1103-1108 ◽  
Author(s):  
K. S. McKinlay

AbstractHydraulic, fan-spray nozzles (Teejet 650067) at 50.8 cm (20 in.) spacing, 55.9 cm (22 in.) above the target surface, and operating at 2.8 kg/cm2 (40 p.s.i.) produced very uneven coverage when applying aqueous sprays containing uranine. Deposits immediately below the nozzles were 2 to 3 times more than those between nozzles.Deposits on grasshoppers (Melanoplus sanguinipes F.) were directly proportional to their plan area. Since this area increases as the square of the linear dimensions and weight increases as the cube, second instar grasshoppers collected twice as much spray/unit weight as fourth instar nymphs and 3 times as much as adult females. These differences were reflected in the mortality caused by insecticide sprays. A spray applying dimethoate at 140 g/ha (2 oz/ac) in 39.3 l./ha (3.5 Imp. g.p.a.) killed 90% of second instar nymphs but only 14% of adult males.


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