The multivoltine life history of Cheumatopsyche brevilineata (Iwata, 1927) (Trichoptera: Hydropsychidae), with a new method to estimate the population size of generations

Cheumatopsyche brevilineata (Iwata, 1927 Iwata, M. (1927), ‘Trichopterous Larvae from Japan’, Zoological Magazine, 39, 209–272. (In Japanese) [Google Scholar]) is a filter-feeding caddisfly without distinct separable generations. We conducted a life history survey of C. brevilineata under a natural thermal regime. This caddis species had a multivoltine life history and their generations partially overlapped each other. From the seasonal change of larval and pupal density, we recognized one overwintering generation and three non-winter generations. We propose a new method to estimate the population size of fourth instar larvae from each generation by using the ‘development zero’ and ‘effective degree-days’ methods. The second non-winter generation, developing under the hottest water temperature regime, had the largest population size and highest observed density. The overwintering generation, which developed under the coolest thermal regime, showed the smallest population size but its observed density was not the smallest.     

Neophylax kolodskii (Trichoptera: Uenoidae), A New Species from the Great Smoky Mountains National Park,U.S.A.

Neophylax kolodskii sp. n. from Great Smoky Mountains National Park is described and illustrated from adult specimens.     

A new lotic species of the genus Leptocerus Leach (Trichoptera, Leptoceridae) from Japan

A new lotic species of leptocerid caddisfly, Leptocerus fluminalis sp. nov., is described based on adult and immature stages from Japan. The habitat and gut contents of this species are noted.     

A new species of the genus Molanna Curtis (Trichoptera, Molannidae) from the Yaeyama Islands, the southernmost part of Japan

A new species of molannid caddisfly, Molanna yaeyamensis sp. nov., is described based on adult and immature stages from the Yaeyama Islands, the Ryukyu Archipelago, the southernmost part of Japan.     

Taxonomic notes on Laurencia brongniartii (Rhodomelaceae, Rhodophyta)

The red alga Laurencia brongniartii J. Agardh (Rhodomelaceae, Ceramiales) is characterized by: (i) the production of four periaxial cells from each vegetative axial segment; (ii) the presence of two or three corps en cerise per superficial cortical cell and one per trichoblast cell; (iii) the production of a single tetrasporangium-bearing periaxial (fourth) cell per fertile segment; (iv) a tetrasporangial arrangement that is intermediate between perpendicular and parallel types; (v) procarps produced from the last-formed (fifth) periaxial cell of the terminal segment of a two-celled female trichoblast; and (vi) distally positioned spermatangial nuclei, in addition to known features. The production of a single tet-rasporangium-bearing periaxial cell per fertile segment allies this species to Laurencia similis Nam et Saito.     

The larva of Rhyacophila loxias Schmid, 1970 (Trichoptera: Rhyacophilidae) with notes on its ecology

The larva of Rhyacophila loxias Schmid, 1970 is re-described. The diagnostic features of the species are listed and illustrated, and some information on the ecology and distribution of R. loxias is included.     

云南等翅石蛾科五新种记述（毛翅目）

记述中国云南毛翅目等翅石蛾科 4属 5新种 ;杨氏梳等翅石蛾 Kisaura yangaeSun & Gui,sp.n.,双突短室等翅石蛾 Dolophilodes didactylus Sun & Yang,sp.n.,喙突闭室等翅石蛾 Doloclanes rhynchophysa Sun & Gui,sp.n.,齿肢闭室等翅石蛾 Doloclanes dentata Gui & Yang,sp. n.及四瓣合脉等翅石蛾 Gunungiella te-trapetala Sun & Gui,sp. n.,其中合脉等翅石蛾属 Gunungiella为中国新记录属。新种模式标本保存于南京农业大学昆虫标本室。     

A Second Species of Apatidelia Mosely from China (Trichoptera,Apataniidae)

Apatidelia gansuensis sp. n. is described from Ganzu Prov. on the basis of two males. The genitalic apparatus is illustrated.     

Xanthochorema paniensis (Trichoptera,Hydrobiosidae) New Species from Upland New Caledonia

Xanthochorema is a genus of the Hydrobiosidae (Trichoptera) endemic to New Caledonia, with four described species. A fifth, Xanthochorema paniensis new species, is described herein, based on a mature male pupa from the We Caot River, Mont Panié, northeast New Caledonia.     

Palerasnitsynus gen. n. (Trichoptera, Psychomyiidae) from Burmese amber

Palerasnitsynus ohlhoffigen. et sp. n. is described fromBurmese amber of late Albian (Lower Cretaceous) age. This is the first record of the family Psychomyiidae from Burmese amber, and the earliest fossil record of the family. The genus Palerasnitsynusgen. n. differs from all other known psychomyiid genera by the absence of fork III in the forewings.     

Two new species of Apsilochorema Ulmer, 1907 (Trichoptera: Hydrobiosidae) from India

Two new species Apsilochorema (Apsilochorema) shalimarensis sp. n. and Apsilochorema (Apsilochorema) sainii sp. n. are described and illustrated from India. With these new additions, the genus Apsilochorema Ulmer, 1907 is now represented by 14 species from India.http://www.zoobank.org/urn:lsid:zoobank.org:pub:AAA8C469-850E-4778-BCF1-3FF5B429E559     

Helicopsyche trispina sp. n. (Trichoptera,Helicopsychidae) from New Caledonia

Helicopsyche trispina sp. n. is described from Grande Terre, New Caledonia, based on pharate males, larvae and pupae. The species appears to belong to the monophyletic New Caledonian Helicopsyche clade.     

Life history of a dipteran predator (Scathophagidae: Acanthocnema) of insect egg masses in a northern California stream

1. Little is known about the predators of insect eggs in fresh waters. This study describes aspects of the life history of a scathophagid fly (Acanthocnema sp.), whose larvae are predators of aquatic insect eggs. 2. Because the Acanthocnema predator oviposits its eggs on the surface of aquatic insect egg masses, all insect egg masses were collected regularly within a 200‐m reach of Redwood Creek (California, U.S.A.) between September 2003 and June 2007. Acanthocnema predators were found predominantly within egg masses of the caddifly Neophylax rickeri (Trichoptera: Uenoidae). 3. There was a mean of 0.25 Acanthocnema individuals per N. rickeri egg mass (n = 2367 egg masses). In general, N. rickeri egg masses were more commonly found clustered in aggregations (93.7%) than singly (6.3%), and Acanthonema were found more often within the aggregations of N. rickeri (98.7%) compared to singly laid egg masses (1.3%). 4. The duration of the Acanthocnema predator life stages was: egg 2.9 ± 0.8 (mean ± SD) days, larva 15.6 ± 10.2 days, pupa 80.3 ± 24.9 days and adult 7.2 ± 4.8 days. The short duration of the Acanthocnema egg stage (1–7 days) compared to that of its prey N. rickeri (2–4 weeks) raises the probability that the undeveloped eggs of N. rickeri would be available to the young predators upon hatching. Egg consumption of N. rickeri eggs by Acanthocnema averaged 262.6 eggs per larval period. 5. Acanthocnema had a bivoltine life cycle in which the first generation fed exclusively on N. rickeri egg masses in the winter and the second generation fed on the egg masses of several species, including other Trichoptera (Brachycentridae) and Diptera (Ceratopogonidae, Chironomidae) in the spring. These findings suggest differing feeding strategies by the first and second generations of Acanthocnema in response to the seasonal availability of prey species. This type of autecological information is important for understanding mechanisms of community interactions.     

梳等翅石蛾属二新种记述(毛翅目:等翅石蛾科)

记述了梳等翅石蛾属2新种,即膨肢梳等翅石蛾Kisaura inflate,sp.nov.和凹背梳等翅石蛾Kisaura alveiformis,sp.nov.。     

Twenty-one new Polyplectropus species from New Caledonia (Trichoptera: Polycentropodidae)

Twenty-one new Polycentropodidae (Trichoptera) species are described: Polyplectropus aberrus, P. dorsospinus, P. nodyg, P. yndog, P. clavus, P. nathalae, P. millei, P. christinae, P. koueus, P. viklundi, P. hovmoelleri, P. aoupiniensis, P. tenerus, P. angustus, P. curvispinus, P. caledonia, P. piroguensis, P. triangulatus, P. pernodensis, P. taoensis, and P. papei spp. novae, representing the first species records of this family from New Caledonia. A key to males of the New Caledonian Polycentropodidae is provided, and distribution maps are presented for all species.     

Four new species of the genus Cheimacheramus Barnard, 1934 from Madagascar (Trichoptera: Sericostomatidae)

The genus Cheimacheramus Barnard, 1934 Barnard, K.H. (1934), ‘South African Caddis-Flies (Trichoptera)’, Transactions of the Royal Society of South Africa, 21, 291–394.[Taylor &; Francis Online] , [Google Scholar] included only three species, one from South Africa and two from Madagascar. Four new Malagasy species are described herein: Cheimacheramus akandi sp. n., Cheimacheramus barnardi sp. n. and Cheimacheramus anjojorobensis sp. n. from the Anjojorobe Forest, Cheimacheramus madecassus sp. n. from the Lakato Forest and the Marojejy National Park. Diagnostic characters of the genus and species are discussed and illustrated. In Madagascar, these discoveries confirm the localization of the genus within the eastern evergreen forests.

http://zoobank.org/urn:zoobank.org:pub:79472077-04E9-42FA-B55B-9EE291556E60