Species account taken from: "A Revision of the Genus Ashmeadiella (Hymen., Megachilidae) Author(s): Charles D. Michener Source: American Midland Naturalist,Vol. 22, No. 1 (Jul., 1939), pp. 1-84"
Ashmeadiella lateralis Michener, 1936, Pan-Pac. Ent., 12: 60, , ; Michener, 1936, Am. Mus. Novit., 875: 14. (Key).
This species is similar to typical timberlakei, and is possibly based on an extraordinary individual of that species.
Male: Inner margins of eyes slightly converging below, except for lower thirds which diverge; under side of flagellum brownish; clypeus rather coarsely punctate with some smooth ground between punctures; apex of clypeus with distinct, slightly produced, slightly concave truncation, aboout two-thirds as broad as basal width of clypeus; apex of labrum slightly bilobed; mandibles with reddish subapical band; cheeks somewhat narrower than eyes, seen in lateral view; front closely and finely punctate; vertex closely but a little more coarsely punctate; anterior ocellus much posterior to midpoint between anten- nal bases and posterior edge of vertex, distance between posterior ocelli less than distance to rear of vertex. Scutum a little more coarsely punctate than vertex, the punctures posteriorly slightly separated; anterior margin of scutum with pair of very inconspicuous spots of pubescence; punctures of mesepis- terna about size of those of vertex but more strongly separated, especially below; tegulae testaceous. Abdomen strongly punctate, but punctures much finer than those of scutum; median teeth of sixth tergite short but slender, concavity between them nearly a semicircle; sides of abdomen and hind femora and inner sides of hind tibiae dark red. Length 5 1/2 mm.
Type: Male; Eagle Rock Hills, Los Angeles County, California, on loan deposit to California Academy of Sciences. This species is known only from the unique type
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