Scrapter nigritarsis, Kuhlmann, 2014

Kuhlmann, Michael, 2014, Revision of the euryglossiform species of the Afrotropical bee genus Scrapter Lepeletier & Serville, 1828 (Hymenoptera: Apoidea: Colletidae), European Journal of Taxonomy 95, pp. 1-69 : 37-41

publication ID

https://doi.org/ 10.5852/ejt.2014.95

publication LSID

lsid:zoobank.org:pub:BE14FE18-E9AB-4C5A-B260-BD9C54464A2A

DOI

https://doi.org/10.5281/zenodo.3861143

persistent identifier

https://treatment.plazi.org/id/683368CE-FDA0-4A33-9BF9-3667D13AAF54

taxon LSID

lsid:zoobank.org:act:683368CE-FDA0-4A33-9BF9-3667D13AAF54

treatment provided by

Valdenar

scientific name

Scrapter nigritarsis
status

sp. nov.

Scrapter nigritarsis sp. nov.

urn:lsid:zoobank.org:act:683368CE-FDA0-4A33-9BF9-3667D13AAF54

Figs 19–20 View Fig View Fig

Diagnosis

The female of S. nigritarsis sp. nov. can be separated from other species of this group by the combination of the following characters: supraclypeal area and clypeus sparsely but distinctly punctate, mostly finely sculptured and slightly matt ( Fig. 19 View Fig C–D), scutum sparsely but relatively coarsely punctate, basal area of propodeum basally largely carinate ( Fig. 19B View Fig ), stigma brown, apical margins of metasomal terga black or only slightly brownish translucent, terga impunctate ( Fig. 19E View Fig ). The male is characterized by an unmodified antenna, simple and black hind tibia and hind basitarsus ( Fig. 20A View Fig ), almost hairless and impunctate abdominal terga ( Fig. 20C View Fig ) and form of S7 ( Fig. 20D View Fig ).

Etymology

Named for the black tarsi of the females.

Type material (2 specimens examined)

Holotype

SOUTH AFRICA: ♂, Worcester , Cape Province, 33°38’ S, 19°26’ E, Sept. 1928, R.E. Turner ( NHML), (identified as Scrapter albitarsis (Friese) , C.D. Eardley det. 1995).

GoogleMaps

Paratype

SOUTH AFRICA: 1 ♀, same data as holotype (NHML) (identified as Scrapter albitarsis (Friese) , C.D. Eardley det. 1995).

Description

Female

BODY LENGTH. 4.5 mm.

HEAD. Head slightly wider than long. Integument black, except part of mandibles dark reddish-brown. Face sparsely covered with long, greyish, erect hair ( Fig. 19C View Fig ). Clypeus almost flat with dispersed large, shallow punctation (i = 1–2 d); surface between punctures apically smooth or only superficially sculptured, shiny, basally more heavily sculptured and matt ( Fig. 19 View Fig C–D). Malar area medially narrow, almost linear. Antenna dorsally blackish-brown, ventrally yellowish-brown.

MESOSOMA. Integument black. Mesoscutal disc between punctures strongly reticulate, matt; disc sparsely (i = 2–3 d), finely and shallowly punctate ( Fig. 19B View Fig ). Metanotum about half as long as basal area of propodeum, apically with distinct, narrow carinate depression ( Fig. 19B View Fig ). Propodeum with distinct carination covering more than half of the basal area ( Fig. 19B View Fig ). Mesoscutum, scutellum, metanotum, mesepisternum and propodeum sparsely covered with short, greyish, erect hair ( Fig. 19A View Fig ).

WINGS. Yellowish-brown; wing venation and stigma brown.

LEGS. Integument black to dark reddish-brown; fore tibia basally with small yellow spot. Vestiture greyish-white, scopa greyish-white, dorsally blackish-brown.

METASOMA. Integument black, apical margins of terga sometimes narrowly translucent dark reddishbrown ( Fig. 19E View Fig ). Discs of T1 and T2 without hair; following terga with sparse and short but increasingly more and longer hair; apical tergal hair bands missing on all terga ( Fig. 19E View Fig ). Prepygidial and pygidial fimbriae very sparse, brownish. Terga impunctate, superficially and ± densely sculptured, mostly shiny; T2–T4 with finely sculptured, narrow and indistinct apical tergal depression ( Fig. 19E View Fig ).

Male

BODY LENGTH. 4.4 mm.

HEAD. Head slightly wider than long. Integument black, except mandible partly dark reddish-brown. Face densely covered with long, greyish-white, erect hair. Malar area medially narrow, almost linear. Antenna dorsally dark brown, ventrally dark orange-brown ( Fig. 20A View Fig ).

MESOSOMA. Integument black. Mesoscutal disc impunctate, strongly sculptured and matt. Mesoscutum, scutellum, metanotum, mesepisternum and propodeum sparsely covered with long, greyish, erect hair ( Fig. 20A View Fig ).

WINGS. Slightly yellowish-brown; wing venation and stigma brown.

LEGS. Integument black to dark reddish-brown; fore tibia anteriorly dominantly yellow to yellowishbrown ( Fig. 20A View Fig ). Hind tibia unmodified. Vestiture greyish-white.

METASOMA. Integument black, apical margins of terga partly translucent yellowish to dark reddishbrown ( Fig. 20C View Fig ). Disc of T1 without hair; apical tergal hair bands missing on all terga ( Fig. 20C View Fig ). Terga impunctate, sculptured and slightly matt; terga with broad and superficially sculptured, more shiny apical tergal depression ( Fig. 20C View Fig ). S3–S5 without distinct apical hair fringes.

TERMINALIA. Genitalia ( Fig. 20B View Fig ), S7 ( Fig. 20D View Fig ) and terminal plate of S8 ( Fig. 20E View Fig ) as illustrated.

Distribution

The species is known from the type locality around Worcester.

Floral hosts

Unknown.

Seasonal activity

September.

NHML

Natural History Museum, Tripoli

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Colletidae

Genus

Scrapter

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