Badister (Badister) neopulchellus Lindroth 1954

Badister neopulchellus Lindroth
Badister neopulchellus Lindroth, 1954: 153, fig. 13d; [I have not seen the type, but have seen specimens determined by Lindroth as B. neopulchellus]. Type locality: West Roxbury, Suffolk Co., Massachusetts; (determined from original description).
This species, one that has long been confused with B. pulchellus Le Conte, may be distinguished from the latter by the characters presented in the keys. Further, the sides of the elytra are more nearly parallel than in B. pulchellus.
Description of color and microsculpture. — Male. Wollaston, Mass.
Color. Antennae with scape testaceous, apically infuscated, segments 2-6 piceous, segments 7-11 rufo-testaceous ; elytra orange-testaceous, with an irregular black spot occupying about apical 1/6, not contacting sutural interval, and a median black spot between striae 1-8, well separated from apical spot; the following black — head, lateral and ventral sclerites of pterothorax, excluding mesepisterna which are suffused with rufous especially basally, and abdomen,
excluding rufous apex of 6th segment; the following rufo-piceous — mandibles, labrum, and hind coxae ; terminal palpal segments and legs excluding hind femora rufous, subterminal segments of palpi testaceous ; the following orangetestaceous — prothorax, elytral epipleurae, scutellum, elytra, as described above, and femora.
Microsculpture. Isodiametric on head and pronotum, these sclerites shining, not iridescent; elytra with line of microsculpture very close together and transverse, not forming obvious meshes ; iridescence pronounced.
Variation. — I am not presenting an analysis of variation in body proportions because this species can be separated from all other members of the genus without resorting to such characters.
Size variation is as follows: males, length 5.15-5.80 mm. (5.53 mm.), width 2.05-2.45 mm. (2.28 mm.); females, length 5.32-6.12 mm. (5.67 mm.), width 2.25-2.55 mm. (2.42 mm.).
The amount of black pigment present seems to vary geographically with a maximum amount, on the average, exhibited by specimens collected in west coast localities, decreasing eastward, reaching a minimum in the Great Plains area and increasing again in the northeast.
Variation in color of other body parts is slight. The mesepimeron varies from black to rufo-piceous, the mesosternum from black to rufotestaceous ; the metepisternum in all specimens examined is as dark as the metasternum.
The pronotum exhibits considerable variation in shape, the sides, on the average, rather narrowly rounded anteriorly and straightening posteriorly, but some specimens have the sides rather broadly rounded, as broad as is the specimens of B. pulchellus.
The genitalia (figs. 134a-b) of sixty-five males have been examined and they exhibit virtually no variation in shape of the median lobe or armature of the internal sac.
The retractile plates of three females do not exhibit any variation. (See Figs. 156, 157, and 158.)
Distribution. — The range of this species is transcontinental in the north, extending from southern British Columbia eastward to Massachusetts, and from McMurray, Alberta in the north, southward to " Texas," in the plains. On the east coast I have not seen specimens of B. neopulchellus from south of New Jersey, and on the west coast south of the state of Washington. Under the name pulchellus, this species has been reported from Raleigh, North Carolina by Brimley (1938:122), from Hiawassee and Lakemont, Georgia by Fattig (1949: 32), and from several localities in New York State by Notman (in Leonard, 1926:230). Notnam (ibid.) has also recorded a specimen, probably of this species, from St. Lawrence County, New York, under the name Badistcr bipustulatus.

Badister neopulchellus is a species of ground beetle in the family Carabidae. It is found in North America.