Eufriesea simillima (Moure & Michener, 1965) Gonzalez & Griswold & Simões, 2017

Gonzalez, Victor H., Griswold, Terry & Simoes, Marianna, 2017, On the identity of the adventive species of Eufriesea Cockerell in the USA: systematics and potential distribution of the coerulescens species group (Hymenoptera, Apidae), Journal of Hymenoptera Research 55, pp. 55-102 : 62

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Eufriesea simillima (Moure & Michener, 1965)

stat. n.

Eufriesea simillima (Moure & Michener, 1965) View in CoL stat. n.

Male, Figs 3 View Figures 1–3 , 12 View Figures 7–13 , 13 View Figures 7–13 , 67-72 View Figures 67–72 , 73-78 View Figures 73–78 ; Female, Figs 64 View Figures 63–66 , 79-83 View Figures 79–83

Euplusia simillima Moure & Michener in Moure, 1965: 275 (Holotype: SEMC; ♂, Mexico: Chihuahua, Maguarichi)


Both sexes of this species can be easily recognized by their body color, which is predominantly dark purple, thus resembling E. micheneri . However, they can be easily separated from that species by the shorter glossa (not surpassing metatrochanter in E. simillima and reaching S1 in E. micheneri ), shape of the subapical projection on the anterior surface of the male metatibia, male gonostylus, and metasoma with dark brown to black pubescence (apical terga and sterna with white setae at least laterally in E. micheneri ). (See comparative diagnosis for E. micheneri )


Holotype, ♂: As described for E. coerulescens except as follows: Head width 6.0 mm; intertegular distance 4.9 mm; body length 15.4 mm; forewing length 14.3 mm. Glossa in repose reaching metatrochanter. Anterior margin of metatibia in inner view, above tibial spurs, not bordered laterally by an elevated ridge and thus not forming a distinct pocket, subapical projection above inner spur acute in profile; metabasitarsus about 2.2 times longer than broad. Hidden sterna and genitalia as in Figs 73-78 View Figures 73–78 .

Mandible black on apical two-thirds, basally purple as on labrum; face largely green, remainder of body purple with weak bluish-green hues on tegula and mesoscutum.

Gena with gray to black setae as on vertex. Mesosoma with black setae except whitish setae on outer surface of mesobasitarsus and off-white on anterior half of mesoscutum. Mesotibia with area between medial margin of posterior patch and anterior margin of tibia setose on apical third; posterior patch 4.5 times longer than broad, subapically about as broad as distance between its medial margin and anterior margin of tibia.

♀: Head width 6.2 mm; intertegular distance 5.2 mm; body length 14.6 mm; forewing length 13.5 mm. Metatibia with emargination on distal margin about half width of posterodistal angle; metabasitarsus 2.2 times longer than broad.

Coloration as in male but face blue with weak green hues, mesoscutum and tegula lacking green hues.

Pubescence black including on legs and metasoma.

Clypeus sometimes with median longitudinal ridge continuing onto supraclypeal area; labrum with basal, longitudinally elongate tubercle, sublateral carinae sometimes weak. Mesoscutellum with fine, contiguous punctures submedially, median longitudinal groove weak, lacking distinct row of dense pubescence. T2 with punctures on disc sparser than in the male, separated by at least a puncture width, impunctate distal margin wide, at least three or four times a puncture width.


(Fig. 128 View Figure 128 ) This species is known only from the western slope of the Cordillera of Chihuahua, Mexico.


This species is reinstated from synonymy with E. coerulescens . As indicated in the key to species and the diagnosis, both sexes of this species are morphologically distinct as well as geographically separated from E. coerulescens . Moure (1965: 275) indicated that the length of the interocellar distance is greater than the ocellocular distance in the male of E. coerulescens whereas such a distance was subequal in the male of E. simillima ; however, such a difference was not observed in the lectotype of E. coerulescens , thus suggesting that Moure’s observation may have not been based on the type specimen. We were only able to examine the holotype and paratypes from Maguarichi and Barranca del Cobre, Chihuahua, all deposited in SEMC and FSCA.














Eufriesea simillima (Moure & Michener, 1965)

Gonzalez, Victor H., Griswold, Terry & Simoes, Marianna 2017

Euplusia simillima

Gonzalez & Griswold & Simões 2017