[ENT 158] - Final Exam Guide - Comprehensive Notes for the exam (32 pages long!)
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5 or fewer (usually 3) antennal segments o. 3rd sometimes annulated (subdivided by rings), sometimes with a terminal style, only rarely with an arista. Anal cell generally longer than 2nd basal cell: most cases closed near wing margin. Mostly medium-sized to large, relatively robust flies. May be divided into 3 groups of the basis of from of 3rd antennal segment and number of pads on last tarsal segment: o. 3rd antennal segment annulated or subdivided; tarsi with 3 pads: 3rd antennal segment not annulated; tarsi with 3 pads: 3rd antennal segment not annulated; tarsi with 2 pads or none: M3 cell open (except in rachicerus, in which the antennae appear many- segmented) Larvae = decaying wood or in soil o. Similar to xylophagidae (most resemble xylophagus), but with m3 cell closed. Encountered are slender, ichneumonlike, and 10 mm or less. Larvae = decaying wood or under bark o.
