Cryptotermes pugnus (Blattodea, Isoptera, Kalotermitidae), a new drywood termite species from the Brazilian Caatinga dry forest and key to South American Cryptotermes Banks, 1909

South American Cryptotermes soldier head capsules A C. dudleyi (arrow: genal horn) B C. havilandi (arrow: genal horn) C C. colombianus D C. contognathus (arrow: frontal horn) E C. chacoensis (arrow: constriction) F C. brevis (arrow: constriction) G C. cubicoceps (arrow: frontal horn) H C. aequacornis (arrow: postclypeus; bracket: outer span of mandibles) I C. pugnus sp. nov. (arrow: postclypeus; bracket: outer span of mandibles) J C. camelus (arrow: frontal flange) K C. verruculosus (arrow: frontal flange) L C. cylindroceps (arrow: lateral margin of vertex) M C. rhicnocephalus (white arrow: vertex concave, grey arrow: frontal flange without elevated rim) N C. fatulus (black arrow: frontal flange with elevated rim; white arrow: frontal horn) O C. mangoldi (black arrow: frontal flange with elevated rim; white arrow: frontal horn with elevated rim). A, B, F, H, L, M modified from Scheffrahn and Křeček (1999); C modified from Casalla et al. (2016). Scale bars: 1 mm.