Apiomerus crassipes (Fabricius, 1803) Det. by

Berniker, Lily, Szerlip, Sigurd, Forero, Dimitri & Weirauch, Christiane, 2011, 2949, Zootaxa 2949, pp. 1-113 : 13-14

Key to the species of the crassipes species group

Distribution is included in the key only when it aids in species identification, and is not included for all species.

1 Body size small, males usually 12–13 mm, females 13–14 mm ( Tab. 2). Western U.S., Northern Mexico or the Baja peninsula .................................................................................................... 2

- Body size larger, males usually more than 13 mm, females more than 14 mm ( Tab. 2); if male 13 mm or female 14 mm, never found in the Western United States, Northern Mexico or the Baja peninsula....................................... 3

2 Pronotum dark red, fore tibia uniformly dark red, corium dark red ( Fig. 1G). Restricted to Baja California Sur, Mexico............................................................... Apiomerus peninsularis Berniker & Szerlip , sp. nov.

- Pronotum black or orange-red, fore tibia banded with black and orange, corium orange to dark red ( Figs 1B, 16B). Western U.S., Baja peninsula and northwestern Mexico........................ Apiomerus cazieri Berniker & Szerlip , sp. nov.

3 Black, posterior pronotal margin and connexivum orange to dark red ( Fig. 1D) ………..... Apiomerus crassipes (Fabricius)

- Variously colored, but not matching above pattern........................................................... 4

4 Males with dorsolateral lobes of the endosoma not divided into anterior and posterior portions, rather present as a single, folded sclerite with a lateral prolongation ( Fig. 8A). Males and females with pronotum mostly black, sometimes with red at anterior or lateral edges, corium red, abdominal connexiva forming a continuous pale yellow to white margin around abdomen ( Figs 1A, 16A). California (USA) and Baja California ( Mexico)..... Apiomerus californicus Berniker & Szerlip , sp. nov .

- Males with dorsolateral lobes of the endosoma clearly divided into proximal and distal portions ( Figs 8B, 8C). Male and female color not as above, if similar in color, never found in California ( USA) or Baja California ( Mexico).............. 5

5 Proximal and distal portions of the dorsolateral lobes of the endosoma equal in size and shape ( Fig. 8C). Females with distal margin of syntergite 9/10 flat ( Figs 11H, 11J)............................................................... 6

- Proximal and distal portions of the dorsolateral lobes of the endosoma not equal in size and shape, proximal portion semicircular or tongue shaped, distal portion elongate ( Fig. 8B). Females with distal margin of syntergite 9/10 emarginate or slightly emarginate ( Figs 11C, 11E, 11F, 11I)...................................................................... 7

6 Pronotum mostly black, sometimes with red at anterior or lateral edges, corium and legs dark red ( Fig. 1H).......................................................................................... Apiomerus rufipennis (Fallou)

- Pronotal lobes orange or red, each with transverse black band along posterior margin, corium and leg color orange or red ( Fig. 1J)..................................................... Apiomerus wygodzinskyi Berniker & Szerlip , sp. nov.

7 Median process of pygophore a broad, deep U-shape ( Fig. 2C), abdominal venter usually black..................................................................... Apiomerus cooremani Costa Lima, Campos Seabra and Hathaway

- Median process of pygophore a narrow U-shape ( Figs 2E, 2F, 2I), abdominal venter usually striped.................... 8

8 Fore femur and tibia uniformly black, each abdominal connexival segment with a pale yellow to white stripe at anterior edge of segment, resulting in a banded appearance in dorsal and lateral view ( Figs 1F, 17A)............................................................................................ Apiomerus montanus Berniker & Szerlip , sp. nov.

- Fore femur and tibia red to brown, sometimes with apical half of tibia black, but never uniformly black, abdominal connexivum forming a continuous margin around abdomen ( Figs 1F, 1I, 16D, 17B)....................................... 9

9 Males 12.5–14.2 mm, females 13.9–16.2 mm ( Tab. 2), fore and mid legs red with apical half of tibia black. Florida peninsula and Florida keys ( Fig. 1E, 16D)................................ Apiomerus floridensis Berniker & Szerlip , sp. nov .

- Males 14.1–16.5 mm, females 14.2–17.3 mm ( Tab. 2), legs red to brown, not always in above pattern. North Dakota south into Mexico, Arizona east through Texas and along Gulf Coast, never in the Florida peninsula ( Fig. 1I, 17B)................................................................................................ Apiomerus spissipes (Say)