Web-spinning-sawfly
Guides
Acantholyda angulata
Acantholyda angulata is a species of sawfly in the family Pamphiliidae. The genus Acantholyda belongs to a group of primitive sawflies characterized by distinctive morphological features. Members of this family are typically associated with coniferous hosts, though specific host records for A. angulata remain limited. The species is known from very few observations, reflecting either genuine rarity or undercollection.
Acantholyda bicolorata
Acantholyda bicolorata is a species of sawfly in the family Pamphiliidae. The genus Acantholyda is known for species that are commonly referred to as web-spinning sawflies or pine web-spinning sawflies, with larvae that construct silken webs on host plants. However, specific information regarding A. bicolorata itself is extremely limited in available sources. The species name 'bicolorata' suggests a two-colored appearance, but detailed biological or ecological data is not readily documented.
Acantholyda circumcincta
Acantholyda circumcincta is a species of sawfly in the family Pamphiliidae, a group commonly known as web-spinning sawflies. The genus Acantholyda contains species whose larvae construct silken webs on host plants. Adults are generally small to medium-sized sawflies with distinctive morphological features. Larval stages are associated with coniferous trees, where they feed gregariously within protective webs.
Acantholyda floridana
Acantholyda floridana is a species of sawfly in the family Pamphiliidae. The genus Acantholyda comprises web-spinning sawflies whose larvae construct silken webs on host plants. This species is endemic to Florida, with records from the northern and central portions of the peninsula. Adults are active in spring and early summer. Larval biology and specific host associations for this species remain poorly documented.
Acantholyda verticalis
Acantholyda verticalis is a species of sawfly in the family Pamphiliidae. It belongs to a genus of web-spinning sawflies whose larvae construct silken webs on host plants. The species has been documented in several Canadian provinces including Alberta, British Columbia, and New Brunswick. Like other pamphiliids, it is likely associated with coniferous hosts, though specific details for this species remain limited in available sources.
Cephalcia
spruce web-spinning sawflies
Cephalcia is a genus of web-spinning sawflies in the family Pamphiliidae, established by Panzer in 1803. Species are distributed across Europe, North America, and Asia. Larvae feed primarily on conifer needles, particularly spruce (Picea) and larch (Larix), and construct silk webs for protection while feeding. Several species are significant forest pests capable of causing defoliation during population outbreaks. The genus exhibits complex life cycles with variable voltinism, often involving extended diapause in soil-dwelling prepupal stages.
Cephalcia fulviceps
Cephalcia fulviceps is a species of sawfly in the family Pamphiliidae, a group of web-spinning sawflies. Members of this genus are associated with coniferous trees. The species is poorly documented in scientific literature.
Onycholyda rufofasciata
Onycholyda rufofasciata is a species of web-spinning sawfly in the family Pamphiliidae, first described by Norton in 1869. The species is recorded from multiple Canadian provinces including Alberta, Manitoba, New Brunswick, and Newfoundland. As a member of Pamphiliidae, it likely produces silk webbing on host plants during larval development, though specific biological details remain poorly documented. The genus Onycholyda contains approximately 20 species distributed primarily in the Holarctic region.
Onycholyda sitkensis
Onycholyda sitkensis is a species of web-spinning sawfly in the family Pamphiliidae, recorded from coastal Pacific Northwest regions including British Columbia and Alaska. Members of this genus construct silken webs on conifer foliage, within which larvae feed. The species appears to be rarely collected, with few documented observations.
Pamphilius murrayi
Pamphilius murrayi is a species of web-spinning sawfly in the family Pamphiliidae, suborder Symphyta. Like other members of its genus, it is a plant-feeding wasp with larvae that develop on host plants. The species belongs to a group of sawflies characterized by a serrated ovipositor used to insert eggs into plant tissue. Records of this species are sparse, with limited observational data available.
Pamphilius ochreipes
Viburnum Web-spinning Sawfly
Pamphilius ochreipes is a web-spinning sawfly in the family Pamphiliidae. Larvae feed within leaf rolls on cultivated Viburnum opulus, constructing silk webbing for protection. The species has a univoltine life cycle, overwintering as larvae in soil and emerging as adults in late spring. Adults have been collected across North America, though detailed biological studies are limited to southern Ontario populations.
Pamphilius pallimaculus
Pamphilius pallimaculus is a species of web-spinning sawfly in the family Pamphiliidae. It is one of 30 sawfly species newly documented in Arkansas through field research by Dr. Michael Skvarla, representing a significant range extension from previously known localities. The species belongs to a group of plant-feeding wasps whose larvae spin protective webs on host plants.
Pamphilius semicinctus
Pamphilius semicinctus is a species of web-spinning sawfly in the family Pamphiliidae, suborder Symphyta. As with other members of this genus, the larvae construct silk webs on host plants for protection while feeding. The species belongs to a group of plant-feeding wasps that are economically insignificant and harmless to humans. Specific details regarding its distribution and biology remain poorly documented in available literature.