@article {248,
	title = {Classification of the Palaerctic species of the genera Xylota Meigen and Xylotomima Shannon (Dipt., Syrphidae)},
	journal = {Acta Entomologica Fennica},
	volume = {34},
	number = {4},
	year = {1968},
	pages = {179-197},
	author = {Hippa, Heikki}
}
@article {249,
	title = {On the taxonomy of the Ceylonese and Southern Indian species of the genus Xylota Meigen (Dipt, Syrphidae)},
	journal = {Acta Entomologica Fennica},
	volume = {40},
	year = {1974},
	pages = {56-60},
	author = {Hippa, Heikki}
}
@article {263,
	title = {<i>Meropidia</i>, a new genus of flower flies (Diptera: Syrphidae) from South America},
	journal = {Papeis Avulsos De Zoologia},
	volume = {35},
	number = {9},
	year = {1983},
	pages = {109-115},
	keywords = {Arthropods, BOLIVIA, Chapares \& Cochabamba, COLOMBIA, Cordillera, Dipterans/True Flies, ECUADOR, Insects, Invertebrates, Limon, Meropidia, Meropidia neurostigma Hippa, Meropidia rufa Thompson, Monte Socorro, New taxa, Syrphidae},
	author = {Hippa, Heikki and Thompson, F. Christian}
}
@article {258,
	title = {Morphology and taxonomic value of the female external genitalia of Syrphidae and some other Diptera by new methodology},
	journal = {Annales Zoologici Fennici},
	volume = {23},
	number = {3},
	year = {1986},
	pages = {307-320},
	keywords = {Arthropods, Diptera, Dipterans/True Flies, female genitalia, Female morphology \& taxonomic value, GENITALIA, Insects, Invertebrates, morphology, Syrphidae, taxonomy},
	author = {Hippa, Heikki}
}
@article {264,
	title = {Revision of the <i>Sterphus</i> cybele species group (Diptera: Syrphidae)},
	journal = {Proceedings Of The Entomological Society Of Washington},
	volume = {96},
	number = {3},
	year = {1994},
	pages = {483-495},
	address = {Washington},
	keywords = {Arthropods, BOLIVIA, Chiriqui Province, COLOMBIA, Coroice \& Yungas, COSTA RICA, Dipterans/True Flies, Insects, Invertebrates, Maracay, Monte Socorro, New species, New species Sterphus cydippe, New species Sterphus janzeni, New species Sterphus venezuelaensis, PANAMA, Rancho Grande, Sterphus calypso, Syrphidae, VENEZUELA},
	author = {Hippa, Heikki and Thompson, F. Christian}
}
@article {443,
	title = {Phylogeny of Syrphidae (Diptera) inferred from combined analysis of molecular and morphological characters},
	journal = {Systematic Entomology},
	volume = {28},
	number = {4},
	year = {2003},
	note = {ArticleEnglish},
	month = {October},
	pages = {433-450},
	abstract = {Syrphidae (Diptera) commonly called hoverflies, includes more than 5000 species world-wide. The aim of this study was to address the systematic position of the disputed elements in the intrafamilial classification of Syrphidae, namely the monophyly of Eristalinae and the placement of Microdontini and Pipizini, as well as the position of particular genera (Nausigaster, Alipumilio, Spheginobaccha). Sequence data from nuclear 28S rRNA and mitochondrial COI genes in conjunction with larval and adult morphological characters of fifty-one syrphid taxa were analysed using optimization alignment to explore phylogenetic relationships among included taxa. A species of Platypezidae, Agathomyia unicolor, was used as outgroup, and also including one representative (Jassidophaga villosa) of the sister-group of Syrphidae, Pipunculidae. Sensitivity of the data was assessed under six different parameter values. A stability tree summarized the results. Microdontini, including Spheginobaccha, was placed basally, and Pipizini appeared as the sister-group to subfamily Syrphinae. The monophyly of subfamily Eristalinae was supported. The results support at least two independent origins of entomophagy in syrphids, and frequent shifts between larval feeding habitats within the saprophagous eristalines.},
	keywords = {[Phylogeny / Intrafamilial relationships / Revaluation using combined, analysis of molecular \& morphological characters]., feeding habits / ] [Molecular genetics / Nuclear 28S rRNA \&, mitochondrial COI gene sequences / ] [Evolutionary adaptation / / ], Pipunculidae, Syrphidae [General morphology / / ] [Diet / Entomophagy \& larval},
	url = {<u><Go to ISI>://ZOOR14002008264</u>},
	author = {St{\r a}hls, Gunilla and Hippa, Heikki and Rotheray, Graham and Muona, Jyrki and Gilbert, Francis}
}
@article {396,
	title = {The first two Oriental species of Neoascia Williston (Diptera, Syrphidae)},
	journal = {Tijdschrift voor Entomologie},
	volume = {148},
	year = {2005},
	pages = {335-340},
	author = {Reemer, Menno and Hippa, Heikki}
}
@article {262,
	title = {Morphological characters of adult Syrphidae: descriptions and phylogenetic utility},
	journal = {Acta Zoologica Fennica},
	volume = {215},
	year = {2005},
	pages = {1-72},
	abstract = {A dataset of 120 characters of syrphoid adult morphology was compiled. The taxon set comprises 48 species representing 43 genera of Syrphidae and two taxa of Pipunculidae (Nephrocerus lapponicus and Pipunculus sp.). The taxon set was chosen to comprise elements of all the assumed main clades of Syrphoidea. Platypezidae (Agathomyia falleni) was used as outgroup. The characters and character state assignments are discussed for each character. Fifty figures of characters and characters states are presented, either as drawings or as SEM images. A wealth of new characters was discovered in the ultrastructure of different types of setae and sensilla. The patterns of vestiture, including the microtrichia, are important and widely used. Also the characters of both male and female postabdomens constitute an important source. We discuss homologies of particular characters across the Syrphoidea. The parsimony analysis resulted in one most parsimonious tree of length 606 steps. Pipunculidae and Syrphidae are monophyletic. Contrary to all earlier hypotheses Neoascia + Sphegina appear as the sister group to all other Syrphidae. The Microdontinae (including Spheginobaccha), Nausigaster and the rest of Syrphidae are resolved in a trichotomy. The main group of Syrphidae is composed of two large clades roughly corresponding to the Eristalinae in the traditional sense, and (Callicerini + ((Rhingiini + Volucellini) + (Pipizini + Syrphinae))). The Eumerus group plus Syritta and Ceriana is the sister of that clade.},
	keywords = {[Morphological variation / / Adult characters, descriptions \&, phylogenetic utility]., Pipunculidae, Syrphidae [General morphology / / ] [Phylogeny / / ]},
	url = {<Go to ISI>://ZOOR14205028614},
	author = {Hippa, Heikki and St{\r a}hls, Gunilla}
}
@article {397,
	title = {Review of the species of Pseudovolucella Shiraki, 1930 (Diptera: Syrphidae)},
	journal = {Tijdschrift voor Entomologie},
	volume = {151},
	year = {2008},
	pages = {77-94},
	author = {Reemer, Menno and Hippa, Heikki}
}
