The John W. Hock Company specializes in tools for collecting mosquitoes and other insects. Our tools are used for scientific research, risk assessment, and vector-borne disease control programs.

Omni-Directional Fay-Prince TrapMosquito and Sandfly Traps

Day or nighttime collection of mosquitoes and sandflies including specific traps for Aedes aegypti and Aedes albopictus or gravid Culex mosquitoes. Battery-powered traps feature incandescent or blacklight (UV), downdraft or updraft fans, CO2 release and photocell control.

Collection Bottle RotatorProgrammable Collection & Droplet Samplers (Impingers)

Segregate the catch into distinct time periods with programmable collection controlled by an advanced timer.

Use our Aerosol Droplet Samplers to accurately calibrate spraying equipment.


AspiratorsImproved Prokopack Aspirator In Use

Collect mosquitoes and other larger species with our Improved Prokopack (battery-powered) or CDC-designed (battery-powered) backpack aspirators. For manually aspirating mosquitoes and sandflies in the lab and field, use our mouth aspirator with optional HEPA filter.

Battery and Charger, 6VBatteries, Chargers, and Accessories

Keep your trap running at top performance with the right battery and charger along with our extensive battery tutorial. Customize a trap for your application with our many accessories, spare parts, and options.

Light-Weight Townes TrapOther Entomological Traps

Proven insect flight collection traps made from sun-resistant polyester with double or triple sewn seams. Models include The Standard 6-Meter Malaise TrapThe Migration Trap, and The Light-Weight Townes Trap.

The Adult Mayfly Updraft Blacklight (UV) Trap Model 3519 was developed for the capture of adult mayflies (Ephemeroptera) using a four-watt blue-black light (UV).

Latest News

Prior to 2015, Zika virus (ZIKV) outbreaks were confined to Africa, Southeast Asia, and the Pacific Islands.  In May of 2015  the Pan American Health Organization (PAHO) issued an alert regarding the first confirmed ZIKV infections in Brazil.  Currently, outbreaks are occurring in many countries in the Americas.  As of 30 January 2016, ZIKV has been reported from Barbados, Bolivia, Brazil, Colombia, Dominican Republic, Ecuador, El Salvador, French Guiana, Guadeloupe, Guatemala, Guyana, Haiti, Honduras, Jamaica, Martinique, Mexico, Panama, Paraguay, Puerto Rico, Saint Martin, Suriname, U.S. Virgin Islands, and Venezuela.  CDC and PAHO/WHO are forecasting that ZIKA will continue to spread in the Americas.  The John W. Hock Company makes many traps that are useful and specific for the vectors of ZIKA.  Click here for more information on Zika virus and recommendations for traps and aspirators.

We recently developed a Constant Voltage Power Supply (CVPS) circuit, PN: 8.07 for our 6 VDC traps that can use any battery source from 3.8 to 24.0 VDC. We developed this in response to several malaria control projects in Africa where 12-volt automobile batteries and chargers were widely available and the cost of shipping in 6-volt gel cell batteries and chargers was considered prohibitively expensive. The CVPS was mounted with the photoswitch in our New Standard Miniature CDC Trap, PN: 1012. The 1012 trap when operated with the CVPS at 12 volts only consumes 0.16 amps per hour; a standard 90 amp hour deep discharge battery would run the trap for more than 550 hours or 45-50 twelve-hour trap runs!

The Improved Prokopack Aspirator Model 1419 was developed for indoor sampling of resting mosquitoes such as Aedes aegyptianophelines, and Culex. It is light weight and highly maneuverable and with the extension pole it can sample from ground level up to 13 feet (4 m). This enables collections to be made on upper walls, ceilings, and under furniture. Our Prokopack aspirator incorporates several significant improvements to the original design.