Basic steps:
  1. Answer one or more questions on right by clicking checkboxes. It's okay to check multiple boxes. Then click any 'search' button.
  2. Results appear on left. Click the 'simplify' button to get more questions.
  3. Repeat steps 1 and 2, narrowing down the possibilities.
  4. A 'COMPARE IMAGES' link appears on left when under 100 kinds match. Use this to compare kinds.
Click Restart to search again.
Click Guides to list other guides.
Click here if you're a new user.

Discover Life 10 kinds match:
Neopasites cressoni  [popup] female
Neopasites cressoni  [popup] male
Neopasites fulviventris  [popup] female
Neopasites fulviventris  [popup] male
Neopasites mojavensis  [popup] female
Neopasites mojavensis  [popup] male
Neopasites sierrae  [popup] female
Neopasites sierrae  [popup] male
Neopasites timberlakei  [popup] female
Neopasites timberlakei  [popup] male


REMAINING (number with state)
Female, head, antennae, flagellomere length
 First segment usually longer than second segment but clearly not twice as long (6)
 First segment about twice as long as second (4)
Head, mouthparts, maxillary palpi, number of free segments - Be careful, this can be a VERY DIFFICULT character to use and often requires extraction of the tongue
 1 free segment (4)
 4 free segments (4)
 2 free segments (2)
N. fulviventris vs N. sierrae
 N. fulviventris - With much larger pits on the scutellum, most often at least twice as large as those of the scutum - Female tibiae entirely reddish or nearly so - Male clypeus straight along the rim - In direct comparison this species is larger, ranging from about 7-8mm in length - This species is found in the more coastal areas of California (2)
 N. sierrae - With smaller pits on the scutellum, these scarcely larger than those of the scutum if at all - Female tibiae entirely black or nearly so - Male clypeus shallowly notched at the middle of the rim - In direct comparison this species is smaller, ranging from about 5-6mm in length - This species is found in the Sierra Nevadas (2)
Sex, number of antennal segments
 Female, 12 (5)
 Male, 13 (5)
State or province where bee was collected
 CA (10)
 AZ (2)
 NM (2)
 NV (2)
 OR (2)
 UT (2)
 WA (2)
Subgenera - Gnathopasites vs Micropasites
 Micropasites - First and second submarginal cells equal in length - Maxillary palp shorter, with only one or two free segments - In direct comparison these species are smaller, usually ranging from about 3-5mm in length (6)
 Gnathopasites - First submarginal cell longer than second - Maxillary palp longer, with four free segments - In direct comparison these species are larger, ranging from about 6-8mm in length (4)
Thorax, legs, tarsal claw dentation
 All legs have bidentate tarsal claws (5)
 The tarsal claws of the forelegs are bidentate but the tarsal claws of the mid and hind legs are simple (5)
Thorax, pronotal lobes, integumental coloration
 Lighter, reddish or orangish (6)
 Darker, brownish or blackish (4)