Correcting behavior by insects on vertical and horizontal mazes

Call number: LD2668 .T4 1962 A3

Morphology of alimentary and reproductive tracts of the rodent bot fly, Cuterebra tenebrosa (Diptera: Cuterebridae)

The internal reproductive and alimentary structures of <i>Cuterebra tenebrosa</i> Coquillett were studied and compared to other calypterate flies. Well defined mouth parts are present. Paired lingual salivary glands extend horizontally almost to the abdomen: however, labial salivary glands were not found. The alimentary canal is complete in female flies, whereas males lack a crop. Females have three spherical spermathecae opening in to the upper portion of the genital chamber. Male reproductive structures are similar to those in other flies. Tracheal air sacs fill one-third to one-half of the abdomen

Morphology of Myrmecophila manni, a myrmecophilous cricket (Orthoptera: Gryllidae)

Scanning electron microscopy showed that the myrmecophilous cricket, Myrmecophila manni Schimmer, retains many structural features common to typical gryllids and has few of the morphological features often associated with myrmecophily. However, the mouth parts, particularly the labrum and epipharynx, are highly modified for strigilation and trophallaxis. The structure of the ovipositor is unique in that it can expand greatly to permit the passage of large eggs. This cricket also differs from typical gryllids in having stemmata instead of compound eyes, a feature probably related to its life inside dark ant nests where it does not need good vision. Behavioral, rather than morphological, attributes are probably more important in adapting the crickets for life with ants

Responses to plant extracts of neonatal codling moth larvae Cydia pomonella (L.) (Lepidoptera: Tortricidae: Olethreutinae)

A bioassay was designed to test behavioral responses of neonatal codling moth larvae to chloroform and methanol extracts of 25 plant species. Chloroform extractable materials from absinthe wormwood, Artemisia absinthium (L.), rabbitbrush, Chrysothamnus nauseosus (Pallas), and tansy, Zanacetum vulgare (L..) showed promise as possible feeding  deterrents to neonatal codling moth larvae

The Behavior of Diploeciton Nevermanni, a Staphylinid Beetle Associated With Army Ants

Volume: 75Start Page: 211End Page: 21

A Polygynous Colony of Vespula Pensylvanica (Saussure) (Hymenoptera: Vespidae)

In 1979 a colony of Vespula pensylvanica (Saussure) with three functional queens was collected at Prosser, Washington. This is the first polygynous colony of yellowjackets recorded from a cool temperate area

Morphological Comparisons Between the Obligate Social Parasite, Vespula Austriaca (Panzer), and its Host, Vespula Acadica (Sladen) (Hymenoptera: Vespidae)

Volume: 89Start Page: 183End Page: 19

Snailcase Bagworm

These pests can attach to house siding or autos so tightly that they damage the paint when removed. They can devastate many types of plants. Hard to detect, small, and often resembling a small dirt clod, the snailcase bagworm ( Apterona helix) is native to Europe. Describing its life cycle, hosts, distribution, and contol methods, this publication includes full color photographs of the infestation and its appearance. NOTE: Read current labels before using any chemical agents. 2 pages

Biology and Pest Status of Venomous Wasps

There are about 15,000 species of aculeate (stinging) wasps in the world (56). However, 95% of these are solitary and nonaggressive species that use their stings primarily for subduing prey. Their venoms are also specialized for this purpose and most cause only a slight and temporary pain to humans. Many are so small that the sting cannot penetrate human skin (33). Therefore, with the exception of infrequent complications resulting from stinging by Mutillidae, Eumenidae, Sphecoidea, Be-thyloidea, and Scolioidea (30), most wasp stings affecting humans are inflicted by the social Vespidae. These wasps use the sting primarily as a defensive weapon, and the venom contains materials that cause intense pain to vertebrates. In addition, pecause social vespids live in colonies comprised of 30 to several thousand individuals, stings inflicted by disturbance of the colony are usually multiple and therefore more serious. Good data on deaths from Hymenoptera stings are unavailable. Stings from vespids were reported to cause 15-20 deaths per year in the United States, although the actual number is probably much higher