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Species Megacerus maculiventris

Bruchid - Megacerus maculiventris Megacerus maculiventris (Fahraeus) - Megacerus maculiventris - male purplish beetle - Megacerus maculiventris - female Male, Megacerus maculiventris? - Megacerus maculiventris - male Male, Megacerus maculiventris? - Megacerus maculiventris - male Male, Megacerus maculiventris? - Megacerus maculiventris - male Male, Megacerus maculiventris? - Megacerus maculiventris - male Megacerus maculiventris (Fahraeus) - Megacerus maculiventris - male
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga
No Taxon (Series Cucujiformia)
Superfamily Chrysomeloidea (Longhorn and Leaf Beetles)
Family Chrysomelidae (Leaf Beetles)
Subfamily Bruchinae (Pea and Bean Weevils)
Tribe Bruchini
Genus Megacerus (Large-horned Bruchids)
Species maculiventris (Megacerus maculiventris)
Explanation of Names
Megacerus maculiventris (Fåhraeus 1839)
Size
2.0–2.5 mm(1)
Identification
The serrate ventromesal margin of the metafemur will immediately separate this species from all other species in this report except M. schaefferianus, from which M. maculiventris may be distinguished by its mottled integumental and vestitural pattern (no pattern in M. schaefferianus)... (1)

Integument varying from red to black;
head always black, antenna varying from basal seven and terminal segments red to black with some reddish suffusion;
pronotum all black to black median shield with red flanks (figure 247);
elytra varying from all black to red with black basal patch;
venter of body variable with red and black patches; legs red to black. (1)

Vestiture of head mostly yellow with white patch behind eye; pronotum mixed white and yellow in pattern shown in figure 247; elytral vestiture varying from black with scattered white spots in those specimens with uniformly black elytra to black with white patches on red integument; pygidium uniformly yellow, uniformly white, or yellow with white patches, always with paired subapical black spots, sometimes with another pair at one-third from base (figure 248); venter of body with variable-sized patches of red, white, yellow, and red vestiture in no consistent pattern. (1)
Range
AZ, TX to n. S. America(1)
Food
Ipomoea spp. (1)
Works Cited
1.Handbook of the Bruchidae of the United States and Canada
Kingsolver J.M. 2004. USDA Tech. Bull. 1912 (2 vols.).