Geomydoecus costaricensis, from the Field Museum. Belongs within: Phthiraptera. The Trichodectidae are a group of lice found on mammals, characterised by a broadly oval body in both sexes, and short, thick legs with distally broadened tibiae, a terminal process and single claw. <==Trichodectidae [Bovicolidae] |–Lorisicola GE05 |–Werneckiella equi CM91 |–Felicola subrostratus CM91 |–Stachiella RD77 |–Thomomydoecus… Continue reading Trichodectidae


Saemundssonia lari, from the Spencer Entomological Collection. Belongs within: Phthiraptera. Contains: Columbicola, Austrogoniodes. The Philopteridae are a group of lice parasitic on birds, characterised by paired claws on the legs, a smoothly curved front margin on the clypeus, and a cylindrical last antennal segment (Richards & Davies 1977). <==Philopteridae |–Saemundssonia Timmermann 1936 GE05, HPP80 |    |–S.… Continue reading Philopteridae


Colpocephalum fregili, copyright Natural History Museum, London. Belongs within: Phthiraptera. The Menoponidae are a diverse group of lice parasitic on birds. Characters (from Richards & Davies 1977): Antennae four- or five-segmented, with 2 coeloconic sensilla on fourth or fourth and fifth segments; maxillary palps four-segmented; labial palps present, with five distal setae; pro-, meso- and… Continue reading Menoponidae


Orthotylus virescens, copyright B. Schoenmakers. Belongs within: Miridae. The Orthotylinae are a group of mirid bugs in which parempodia are lamellate, recurved and apically strongly convergent, pulvilli are present, and the pronotum usually lacks a collar (Carver et al. 1991). <==Orthotylinae CGW91 |  i. s.: Fronsetta MC13 |         Opera MC13 |         Rankiniella MC13 |         Sophocoris MC13… Continue reading Orthotylinae


Tomato bug Nesidiocoris tenuis, photographed by Johanna Bajonero. Belongs within: Miridae. The Bryocorinae are a group of mirid bugs that possess distally dilated tarsi with long guard setae or pseudopulvilli arising from the unguitractor plate (Carver et al. 1991). <==Bryocorinae |  i. s.: Singhalesia MC13 |–Bryocorini CGW91 |–Bromeliaemiris [Eccritotarsini] CGW91 |    `–B. puncticollis CGW91 |–Monaloniini WEE70 |    |–Eucerocoris… Continue reading Bryocorinae


Chlamydatus pullus, copyright AfroBrazilian. Belongs within: Miridae. The Phylinae are a group of usually small (2–3 mm) mirids that usually lack a pronotal collar. They possess setiform parempodia and pulvilli arising from the ventral surface of the claw (Carver et al. 1991). <==Phylinae |  i. s.: Cephalocapsidea stali Girault 1937 Gi37 |–Hallodapini CGW91 |    |–Hallodapus CGW91 |    `–Acrorrhinium… Continue reading Phylinae


Macroscytus brunneus, copyright Petri Metsälä. Belongs within: Pentatomoidea. The Cydnidae, burrowing bugs, are a group of shiny black or brown bugs characterised by a large triangular scutellum, numerous strong spines on the tibiae, and fringes of closely set, rigid setae on the apices of the mid and hind coxae. They burrow in soil where they… Continue reading Cydnidae


Hawaiian pond bug Microvelia vagans, copyright James Bailey. Belongs within: Gerromorpha. The Gerroidea are a group of predatory bugs specialised for skating over the surface of water. They are distinguished by legs with at least the fore pair having claws inserted well before the apex of the last tarsal segments (Carver et al. 1991). <==Gerroidea… Continue reading Gerroidea


Catonia pumila, copyright Judy Gallagher.Belongs within: Auchenorrhyncha. The Achilidae are a group of often flattened planthoppers whose nymphs live under bark or in cavities in dead wood (Carver et al. 1991). Characters (from Carver et al. 1991): Apical segment of rostrum distinctly longer than wide. Fore wings usually folded flat, partially overlapping at rest, occasionally… Continue reading Achilidae


Siphanta acuta, copyright Jean & Fred Hort.Belongs within: Auchenorrhyncha. The Flatidae are a group of plant-sucking bugs characterised by conspicuous granules over the clavus of the fore wing (Carver et al. 1991). Characters (from Carver et al. 1991): Fore wings usually broad, triangular, steeply tectiform, opaque and brightly coloured, most commonly green; clavus with conspicuous… Continue reading Flatidae