Under Construction

Troctopsocidae

Emilie Bess and Kevin P. Johnson

Containing group: Troctomorpha

Introduction

Troctopsocidae contains six genera and 22 species found in Central America, South America, and Asia.

Characteristics

Head:

Antennae have 11, 13, or 15 segments.
Frontal sutures are absent.

Legs: Tarsi have three segments.
Wings:

Forewing: Pterostigma is open or closed basally.

Vein Sc meets vein R.
Vein 2A runs from its origin a short distance along wing margin, then joins 1A.

Hindwing vein Rs first segment is either present or absent.

Male:

Phallosome lacks external parameres.
Posterior end of phallosome arms are separated and connected by membrane.

Female:

Subgenital plate sometimes has a t-shaped sclerite.
External valve of gonapophyses has two lobes apically.

Discussion of Phylogenetic Relationships

Molecular analysis including one species of Selenopsocus placed family Troctopsocidae in infraorder Amphientometae (18S nDNA; Johnson et al. 2004), but relationships within the family have not been investigated with molecular data.

References

Johnson, K. P., K. Yoshizawa, and V. S. Smith. 2004. Multiple origins of parasitism in lice. Proceedings of the Royal Society of London B 271:1771-1776.

Lienhard, C. and C.N. Smithers. 2002. Psocoptera (Insecta) World Catalogue and Bibliography. Muséum d'Histoire Naturelle, Geneva, Switzerland.

Mockford, E.L. 1967. The Electrentomoid Psocids (Psocoptera). Psyche 74: 118-165.

Mockford, E. L. 1993. North American Psocoptera (Insecta). Gainesville, Florida: Sandhill Crane Press.

Smithers, C.N. 1972. The classification and phylogeny of the Psocoptera. Memoirs of the Australian Museum 14: 1–349.

About This Page

Emilie Bess
Illinois Natural History Survey, Champaign, Illinois, USA

Kevin P. Johnson
Illinois Natural History Survey, Champaign, Illinois, USA

Correspondence regarding this page should be directed to Emilie Bess at and Kevin P. Johnson at

First online 25 March 2009
Content changed 25 March 2009

Citing this page:

Bess, Emilie and Kevin P. Johnson. 2009. Troctopsocidae. Version 25 March 2009 (under construction). http://tolweb.org/Troctopsocidae/14460/2009.03.25 in The Tree of Life Web Project, http://tolweb.org/

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