The type specimens of the family Halictidae, described by Ferdinand Morawitz from the collection of Aleksey Fedtschenko deposited in the Zoological Museum of the Moscow State University and in the Zoological Institute, Russian Academy of Sciences, St. Petersburg (Russia), are critically reviewed. Precise information with illustrations of types for 43 taxa is provided. Lectotypes are here designated for the following seven nominal taxa: Halictus aprilinus Morawitz, 1876, H. cingulatus Morawitz, 1876, H. laevinodis Morawitz, 1876, H. limbellus Morawitz, 1876, H. nasica Morawitz, 1876, H. rhynchites Morawitz, 1876 and H. vulgaris Morawitz, 1876
FIGURES 18a–b. Halictus gracilis Morawitz, 1865. Lectotype, female: a—habitus, lateral view; b—metas...
FIGURES 47a–e. Halictus salinus Morawitz, 1876. Lectotype, female: a—habitus, lateral view; b—metaso...
FIGURES 21a–e. Halictus pulvereus Morawitz, 1874. Lectotype, female: a—habitus, lateral view; b—meta...
FIGURES 28a–e. Halictus monstrificus Morawitz, 1891. Lectotype, male: a—habitus, lateral view; b—met...
FIGURES 5a–e. Halictus alpestris Morawitz, 1877. Lectotype, female: a—habitus, dorsal view; b—metaso...
FIGURES 30a–e. Halictus nigriceps Morawitz, 1880. Lectotype, male: a—habitus, lateral view; b—mesoso...
FIGURES 6a–e. Halictus anguliceps Morawitz, 1893. Lectotype, female: a—habitus, lateral view; b—meta...
FIGURES 23a–e. Halictus semitectus Morawitz, 1874. Lectotype, female: a—habitus, lateral view; b—hea...
FIGURES 9a–e. Halictus flavocallosus Morawitz, 1894. Lectotype, female: a—habitus, lateral view; b—m...
FIGURES 4a–e. Halictus cephalicus Morawitz, 1874. Lectotype, female: a—habitus, lateral view; b—labe...
FIGURES 11a–e. Halictus coloratus Morawitz, 1874. Lectotype, female: a—habitus, lateral view; b—meta...
FIGURES 17a–e. Halictus parumpunctatus Morawitz, 1893. Holotype, female: a—habitus, lateral view; b—...
FIGURES 33a–e. Halictus ocularis Morawitz, 1893. Lectotype, male: a—habitus, lateral view; b—metasom...
FIGURES 2a–f. Halictus bagirensis Blüthgen, 1936. Holotype, male: a—habitus, lateral view; b—head, f...
FIGURES 19a–e. Halictus petraeus Blüthgen, 1933. Holotype, female: a—habitus, lateral view; b— head,...
FIGURES 18a–b. Halictus gracilis Morawitz, 1865. Lectotype, female: a—habitus, lateral view; b—metas...
FIGURES 47a–e. Halictus salinus Morawitz, 1876. Lectotype, female: a—habitus, lateral view; b—metaso...
FIGURES 21a–e. Halictus pulvereus Morawitz, 1874. Lectotype, female: a—habitus, lateral view; b—meta...
FIGURES 28a–e. Halictus monstrificus Morawitz, 1891. Lectotype, male: a—habitus, lateral view; b—met...
FIGURES 5a–e. Halictus alpestris Morawitz, 1877. Lectotype, female: a—habitus, dorsal view; b—metaso...
FIGURES 30a–e. Halictus nigriceps Morawitz, 1880. Lectotype, male: a—habitus, lateral view; b—mesoso...
FIGURES 6a–e. Halictus anguliceps Morawitz, 1893. Lectotype, female: a—habitus, lateral view; b—meta...
FIGURES 23a–e. Halictus semitectus Morawitz, 1874. Lectotype, female: a—habitus, lateral view; b—hea...
FIGURES 9a–e. Halictus flavocallosus Morawitz, 1894. Lectotype, female: a—habitus, lateral view; b—m...
FIGURES 4a–e. Halictus cephalicus Morawitz, 1874. Lectotype, female: a—habitus, lateral view; b—labe...
FIGURES 11a–e. Halictus coloratus Morawitz, 1874. Lectotype, female: a—habitus, lateral view; b—meta...
FIGURES 17a–e. Halictus parumpunctatus Morawitz, 1893. Holotype, female: a—habitus, lateral view; b—...
FIGURES 33a–e. Halictus ocularis Morawitz, 1893. Lectotype, male: a—habitus, lateral view; b—metasom...
FIGURES 2a–f. Halictus bagirensis Blüthgen, 1936. Holotype, male: a—habitus, lateral view; b—head, f...
FIGURES 19a–e. Halictus petraeus Blüthgen, 1933. Holotype, female: a—habitus, lateral view; b— head,...
FIGURES 18a–b. Halictus gracilis Morawitz, 1865. Lectotype, female: a—habitus, lateral view; b—metas...
FIGURES 47a–e. Halictus salinus Morawitz, 1876. Lectotype, female: a—habitus, lateral view; b—metaso...
FIGURES 21a–e. Halictus pulvereus Morawitz, 1874. Lectotype, female: a—habitus, lateral view; b—meta...