Mexican and Central American Chauliognathinae. 159 



29. Chauliognathus pardalinus. (Plate III, fig. 11, ^.) 

 Chauliognathus pardalinus, Gorh., Biol. Centr.-Am,, Coleopt. 

 iii, 2, p. 280. 



(J. Aedeagus : median lobe obliquely bent, produced into a spoon- 

 like process at the apex ; left lateral lobe extremely elongate, slender, 

 sinuate, slightly hooked at the tip; right lateral lobe about one- 

 third shorter than the left, curved and acuminate at the apex. 

 Plate VII, fig. 32. 



Hab. Panama, Bugaba. 



Gorham's description of this species was taken from the 

 unique male, which has an enormously developed, elongate 

 head and abbreviated lanciform elytra, the head being 

 comparatively small and the elytra much more elongate 

 in the female, both sexes having four spots on the head and 

 an M -shaped mark on the prothorax black. The eyes are 

 not prominent. The aedeagus is formed much as in C. litur- 

 atus and its allies. In immature examples the black mark- 

 ings are obsolete. 



30. Chauliognathus suhmarginatus. 



Chauliognathus suhmarginatus, Gorh., Biol. Centr.-Am., 

 Coleopt. iii, 2, p. 279, pi. 6, fig. 16 (?). 



(^. Aedeagus : median lobe short, curved, stout, not produced 

 at the apex; left lateral lobe long, slender, abruptly and arcuately 

 twisted from about the middle, the apical portion oval ; right lateral 

 lobe a little shorter than the left, strongly bowed, angularly dilated 

 towards the base within, and armed with a small tooth at the tip. 

 Plate VIII, fig. 34. 



Hah. Nicaragua, Chontales; Panama, Chiriqui. 



A close ally of C. decolor (= exsanguis, Gorh., part.), 

 with some markings on the base of head, two lines or vittae 

 on the prothorax, a small humeral spot or a faint marginal 

 Line on the elytra, the apices of the femora, the tibiae, 

 tarsi, palpi, and antennae fuscous. The head of the male 

 is considerably elongated behind and less constricted at 

 the base than in the same sex of C. decolor. The third 

 antennal joint is only about twice as long as the second. 



31. Chauliognathus sticticus. 



Chauliognathus sticticus, Gorh., Biol. Centr.-Am., Coleopt. 

 iii, 2, p. 280. 



