R. M. Bohart L. S. Kimsey, 1982 · 1
Chrysis scitula, tail |
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Native Bee Inventory and Monitoring Lab; Photographer: Erika Tucker · 1
Chrysis scitula, face |
Native Bee Inventory and Monitoring Lab; Photographer: Erika Tucker · 1
Chrysis scitula, tail |
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Native Bee Inventory and Monitoring Lab; Photographer: Erika Tucker · 1
Chrysis scitula, top |
Native Bee Inventory and Monitoring Lab; Photographer: Erika Tucker · 1
Chrysis scitula |
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Native Bee Inventory and Monitoring Lab; Photographer: Erika Tucker · 1
Chrysis scitula, face |
Native Bee Inventory and Monitoring Lab; Photographer: Erika Tucker · 1
Chrysis scitula, tail |
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R. M. Bohart and L. S. Kimsey · 1
Chrysis scitula, male paramere |
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Overview |
Taken from:
R. M. Bohart and L. S. Kimsey. 1982. A Synopsis of the Chrysididae in America North of Mexico.
Chrysis scitula Cresson
(Figs. 182, 235)
Chrysis scitula Cresson 1865:308. Holotype female, Colorado Territory (ANSP).
Chrysis californica Gribodo 1879:336. biotype female. California (Invrea Collection, Genoa).
Discussion: The key will separate most specimens of this rather variable species. The dentition of T-III is typically much reduced (fig. 182) and the teeth may become hardly recognizable as such. Both sexes have T-II shiny toward the posterior, and the pit row usually quite weakly impressed. Males have the frons narrower than usual, hardly ever broader than a compound eye in front view. The same situation occurs in dorsalis but males of that species have the scapal basin with more polished area. Body length is variable but the mode is 4.5 mm in males and 5.5 in females. Male genitalia (fig. 235) are very close to those of paradisica.
Material examined: 151 males, 235 females including types of scitula and californica.
Distribution: According to our records, scitula is rather widely distributed in the U.S. from Florida to New York, west to Missouri, Wyoming and Washington, south to southern California and Colorado. Also, we have seen a specimen from the Sierra San Pedro Martir Mts. in Baja California. Life Zones from Lower Sonoran to Canadian are habitats.
Species group of dorsalis Aaron
Diagnosis: Male F-I longer than F-III and about 1.5-2.0 times as long as broad, female F-I 2.0-2.5 times; subantennal distance a little more or less than 1.0 MOD, shorter than malar space which is 1.5- 2.0 MOD, transverse frontal carina absent or rarely indicated (montana female); in which case eye height equals LID; genal carina separated from eye; midocellus not depressed or lidded; mesopleuron and metanotum rather simple; T-II with a weak and ill-defined median longitudinal ridge; T-III distally with a simple edge and four teeth, laterally a little irregular but essentially straight.
Included species: allectoris Bohart, dorsalis Aaron, equidens Viereck, knowltoni Bohart, Aaron, montana Aaron, paradisica Bohart, pompella Bohart, provancheri Schulz, and scitula Cresson.
Discussion: External characters for species separation are meager in some cases. However, male genitalia, particularly the parameres, are usually definitive (figs. 230-239). Two essential characteristics of these relatively small species are the absence of a definite frontal carina and a moderately long male F-I. The coppery to red coloration in three of the species is unusual among American Chrysis.
Hosts: probably ground nesting bees or wasps (see comments under dorsalis).
Key to the Chrysis dorsalis group
1. Body with extensive coppery to gold or reddish, at least on abdomen
..2
Body green to blue to purple, often with some black
4
2. Color of abdomen not contrasting strongly with that of thorax and head, basic body color green but infused with coppery to golden
.meta Aaron
Color of abdomen contrasting strongly with that of thorax and head, abdomen usually
extensively coppery red with thorax and head predominantly blue or greenish blue
.3
3. Wings brown stained, scutellum closely and rather coarsely punctate
.provancheri Schulz
Wings nearly clear, scutellum with small polished areas between many small punctures
pompella Bohart
4. S-II apically and S-III brown, except usually for a basomedian greenish spot on S-III.. . .
..equidens Viereck
S-II apically or subapically and S-III extensively green to blue
.5
5. T-III with more lateral teeth obtuse and not sharp, all four teeth usually weakly
developed (fig. 182), pit row often shallow, scapal basin extensively polished medially
scitula Cresson
T-III with more lateral teeth acute (rarely obtuse) and sharp, all four teeth well
developed, pit row deep, scapal basin various
6
6. T-III punctation moderately coarse and rather even, not much finer toward base of colored area; median notch at apex of T-III usually more than a semicircle (fig. 179); frontal brow often with traces of a cross carina
...montana Aaron
T-III punctation coarse toward pit row but becoming much finer on average toward base of colored area, median notch at apex of T-III usually less than a semicircle; frontal brow various
7
7. T-III with more median pair of teeth almost as sharp as lateral teeth (fig. 180)
...8
T-III with more median pair of teeth usually considerably more blunt than lateral
teeth (fig. 178)
9
8. California Sierra along east side from Nevada Co. to Mono Co
...paradisica Bohart
East of 100th meridian
..a1lectoris Bohart
9. T-II with punctures across distal third mostly less than a PD apart, this area not particularly shiny; body length mostly 6-7 mm long
dorsalis Aaron
T-II with punctures across distal third mostly about a PD apart, this area somewhat shiny; body length mostly 7-8 mm long
...knowltoni Bohart
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Updated: 2024-04-26 22:27:21 gmt
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