Revision of the Nearctic species of the Lasioglossum (Dialictus) gemmatum species complex (Hymenoptera: Halictidae)
Fig. 76. Male genitalia illustrated in dorsal view and positioned such that the gonostylus is parallel to the plane of vision. Retrorse lobes are also illustrated separately to the bottom left of each figure in lateral view, positioned parallel to the plane of vision. A. Lasioglossum (D.) angelicum sp. nov.B. L. (D.) coactus (Cresson, 1872). C. L. (D.) deludens sp. nov. D. L. (D.) diabolicum sp. nov.E. L. (D.) gaudiale (Sandhouse, 1924). F. L. (D.) gloriosum sp. nov. (the retrorse lobe was not visible for illustration). G. L. (D.) helianthi (Cockerell, 1916). H. L. (D.) holzenthali sp. nov. I. L. (D.) indagator sp. nov. J. L. (D.) magnitegula sp. nov. K. L. (D.) perparvum (Ellis, 1914). L. L. (D.) profoundum sp. nov. M. L. (D.) pseudotegulare (Cockerell, 1896). N. L. (D.) rufodeludens sp. nov. This genital capsule was damaged during dissection and some details may be slightly distorted.O. L. (D.) stictaspis (Sandhouse, 1923) (holotype) (reproduced from Gardner & Gibbs 2022). P. L. (D.) tegulariforme (Crawford, 1907) (reproduced from Gardner & Gibbs 2022). Scale bars = 0.25 mm.
Fig. 106. Metasomal terga. A. Lasioglossum coactus (Cresson, 1872), ♂, T1–T3 each strongly convex with abruptly depressed apical rim. B. L. helianthi (Cockerell, 1916), ♂, T1–T3 each weakly convex with apical rim weakly depressed. Scale bars = 1 mm.
Fig. 107. T2. A. Lasioglossum coactus Cresson, 1872), ♂, apical rim deeply depressed and impunctate, contrasting with very densely punctate disc. B. L. helianthi (Cockerell, 1916), ♂, apical rim flat with gradual change in punctation across premarginal line. Scale bars = 0.5 mm.
Fig. 109. T1–T2. A. Lasioglossum tegulariforme (Crawford, 1907), ♂, T1 more sparsely punctate than T2 and apical rims impunctate. B. L. helianthi (Cockerell, 1916), ♂, T1 and T2 uniformly punctate with some punctures on apical rims. Scale bars = 0.5 mm.
Fig. 110. Tegulae. A. Lasioglossum helianthi (Cockerell, 1916), ♂, with smaller posterior projection (outline on left) barely exceeding mesoscutum posterior margin. B. L. angelicum sp. nov., ♂, with larger posterior projection (outline on left) clearly exceeding mesoscutum posterior margin. The white circle corresponds to 1 lateral OD. Scale bars = 0.5 mm.
Fig. 115. Tegulae. A. Lasioglossum helianthi (Cockerell, 1916), ♂, inner posterior margin concave with distinct posterior projection (outline on left). B. L. perparvum (Ellis, 1914), ♂, inner posterior margin nearly straight without posterior projection (outline on left). Scale bars = 0.5 mm.
Fig. 32. Georeferenced collection records of Lasioglossum (D.) helianthi (Cockerell, 1916) (black squares) and predicted distribution by maximum entropy ecological niche modelling in Maxent (colour shading). Warmer colours indicate higher cloglog probability of occurrence.
G. W. Frankie & Urbina & Wojcik & N. N. Lanni
R. T. Griswold & S. Griswold & L. Griswold
L. Fuerst & Jason J. Gibbs, E. & Stephens
Stanford University Campus Experimental Area
Government Island Habitat Restoration Project