Glyptotermes canellae ( Mueller , 1873)

Scheffrahn, Rudolf H., 2021, The termite genus Glyptotermes (Isoptera, Kalotermitidae) from Paraguay, ZooKeys 1059, pp. 23-33 : 23

publication ID	https://dx.doi.org/10.3897/zookeys.1059.70500
publication LSID	lsid:zoobank.org:pub:EA7AA738-00D8-4437-BA70-940A5060DD89
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scientific name	Glyptotermes canellae ( Mueller , 1873)
status

Treatment

Glyptotermes canellae ( Mueller, 1873)

Figs 4 View Figure 4 , 5 View Figure 5 , 6 View Figure 6

Mueller, 1873, 334: Calotermes canellae ; imago described. Brazil.

Silvestri, 1901, 3: Calotermes lobicephalus ; soldier described with single measurement. Argentina.

Silvestri, 1903, 36-37: Calotermes lobicephalus ; soldier described with seven measurements and figured with simple line drawings. Argentina.

Holmgren, 1911, 56: Calotermes lobicephalus synonymized with C. canellae ; imago, soldier figured with photographs.

Calotermes lobicephalus See Krishna et al. (2013: 429) for complete synopsis and literature review.

Diagnosis.

Among mainland South American Glyptotermes , the soldier of G. canellae is the second largest after G. hospitalis (Emerson, 1925) from Guyana. The projecting genal horns of the G. canellae soldier are diagnostic.

Type locality.

Brazil: Santa Catarina: Itajaí.

Material examined.

Paraguay, S. Piribebuy (-25.5368, -57.0244), elev. 229, 27 May 2012, R. Scheffrahn et al., UFTC no. PA89 containing 2 soldiers, 12 alates, and many pseudergates. The types were not examined, but the soldier measurements in Silvestri (1903: 36) and photographs in Holmgren (1911; pl. 4, figs 14, 15) of C. lobicephalus are of excellent quality. The measurements agree with those in Table 2 View Table 2 and the photographs show the characteristically deeply bilobed frons and its steep angle from the vertex (Figs 5 View Figure 5 , 6C View Figure 6 ) that are unique for Glyptotermes soldiers of this region GoogleMaps .

Redescription.

Winged Imago (Fig. 4 View Figure 4 , Table 1 View Table 1 ). Head medium brown, pronotum light brown (castaneus in live habitus, Fig. 6D View Figure 6 ). Postclypeus hyaline; labrum light orange-brown. Fore wing scales concolorous with pronotum. Femora and tibiae concolorous with labrum. In lateral view, vertex of head with about 12 scattered setae of medium length. In dorsal view, pronotum with about 8-10 setae of various lengths along lateral margins; in lateral view, about 4-6 setae in line, each with anterior and posterior margins; a few in middle. Eyes medium small, dark gray, occupying about one-third the distance midway between vertex and genal margin; ellipsoid with rectate margin at antennal socket. Ocelli orange, nearly circular; one fifth their diameter from eye. Arolia present.

Soldier (Fig. 5 View Figure 5 , Table 2 View Table 2 ). Head, in lateral view, grading from light orange at the cervical margin to dark brown at frons (darker in live habitus, Fig. 6C View Figure 6 ). Mandibles concolorous with frons. Head capsule much longer than wide; about as wide as high; in dorsal view, posterior wider than width at genal horns. Frontal horns absent. Pronotum more than twice as wide as long, widest near front third; anterior and posterior margins evenly curved, nearly parallel. In all views, setae sparse and uneven in length; no setae on basal hump of mandibles. Mandibles robust, form about one third of total head length; curve apically near anterior half, humps at basal fourth angular beyond outer blades. Dentition as in Fig. 5 View Figure 5 . Frons bilobed, lobes and frons rugose. Frontal furrow between lobes extends to middle of frons. Angle formed by vertex and frons about 90°; lateral view of frons with very small elevations near base; insufficient to constitute horns. Eye spots very faint. In ventral view, posterior margin of postmentum narrower than middle. Genal horns acute, visible from above, span narrowest part of head capsule. Antenna with 12 articles; formula 2> 3 <4 <5. Femora swollen.

Distribution.

Argentine record of G. canellae from Torales et al. (1997) (Fig. 1 View Figure 1 ).