southern mole cricket
Scapteriscus borellii

(A) Horizonal and (B) vertical view of a generalized Scapteriscus borrow showing (1) horn,
(2) 1st constriction, (3) bulb, (4) 2nd constriction, (5) turn-around, (6) surface tunnel, and (7) deep tunnel.

Figure 1 from Nickerson et al. 1979. Ann. Entomol. Soc. Am. 72(3):438-440.