SINCE the conjunctival sac is exposed to the atmosphere foreign bodies of various nature may enter into it. A few cases of the larvae of flies of the Oestrus ovis group being removed from human eyes have been reported in the literature. Herms (1950) studied a first-stage larva of Oestrus ovis removed from the eye of a patient by Fans. Faust and Russell (1957) stated that Lewis removed a first-s...

The following three species of Ceratopogonidae were collected breeding in the rhizomatous herb Phenakospermum guyannense Endl., 1833 in the vicinity of Manaus, Brazil, a new species, Culicoides (Mataemyia) felippebauerae Spinelli, Forcipomyia (Forcipomyia) genualis (Loew), and F. (Phytohelea) musae Clastrier & Dellécole. C. (M.) felippebauerae is described and illustrated as adult, pupa, and fo...

We investigated the interleukin (IL-4) levels in BALB/c mice immunized with Anisakis extract in single or multiple doses and in mice orally infected with a larva. From animals immunized maximum responses were obtained with the multiple doses with an only IL-4 peak. Conversely, in the mice inoculated with a larva per os, the IL-4 levels showed two peaks of different rates.

Sir.?Major Milne ends liis interesting article in the September number of the Indian Medical Gazette hv ask innmo to account for the presence of Phy.tafnnf.era larva; in the peritoneum. As Major Milne states, I received from him for identification a piece of peritoneum from a squirrel containing a number of cysts in each of which lay a Physn'optera larva; and shortly afterwards some adult, memb...

Platygaster chilophagae, new species, is described from specimens reared from larvae of Chilophaga virgati Gagné collected and reared in eastern South Dakota. The host larva feeds on the basal meristematic tissues of the inflorescence of Panicum virgatum L. This new species seems to lack immediate affinities with any described Platygaster species in its combination of characteristics, and is co...

Gnathostoma, primarily an animal nematode, can infect human by the third stage larva by consumption of undercooked or raw fish, poultry, or pork. In Bangladesh gnathostomiasis is a very rare condition. The first case, an ocular infection by gnathostoma was reported in 2001 from Rangpur, a northern district. This is the second case report of gnathostomiasis which also is an ocular infection, occ...

1. Fourth-instar larvae of the mosquito A. taeniorhynchus (Wiedemann), when living in sea water, drink at a rate of 100 nl h(-1) larva(-1) and maintain ionic and osmotic levels in the haemolymph at about one-third those of the external medium. 2. Hyperosmotic urine is produced in the rectum by secretion of fluid having an osmotic concentration and ionic composition similar to that of sea water,...

The effect of a juvenile hormone (JH) mimic R394 (ethyl 9-cyclohexyl-3, 7-dimethy l-2, 4-nonadienoate) applied topically on the abdominal tergum of silkworm (Bombyx mori L.) after the fourth ecdysis has been studied. JH R394 ranging from 1.0, 0.1, 0.01 μl / larva was applied at 48, 72 and 96 hours of V instar larva that was improved the cocoon weight, shell weight and shell ratio etc. The most ...

The first-instar larva of the hanging-fly Bittacus trapezoideus Huang & Hua, 2005 is described using scanning electron microscopy for the first time. The eruciform larva bears three pairs of thoracic legs and eight pairs of abdominal prolegs. Like other species of the family Bittacidae, the larval head is remarkable for bearing a median ocellus frontally and a pair of compound eyes laterally. E...

Host-parasite interactions of Pomphorhynchus laevis (Müller, 1776) in naturally infected amphipod, Echinogammarus stammeri (Karaman), from the Brenta River (northern Italy) are described. A fully developed acanthocephalan larva occupies a large portion of an amphipod's haemocoelic space; thus, the parasite frequently induces displacement of host digestive tract and other internal organs. Howeve...