142 Mr. G. C. Champion's Revision of the 



Chauliognaihus tricolor, Gorh., loc. cit. p. 70, pi. 5, fig. 6 ($). 

 Hah. Nicaragua; Costa Rica. 



Var. )3. Elytra black, with the outer limb narrowly or broadly 

 to about the middle (the marginal stripes rarely connected by a 

 narrow median fascia), and sometimes the apical margin also, 

 flavous. 



Chauliognaihus jucundus, Gorh., loc. cit. p. 70, pi. 5, fig. 

 5($). 

 Hab. Mexico, Ventanas in Durango (Hoge) ; Guatemala, 

 San Geronimo and Cubulco in Baja Vera Paz. 



Var. y. Elytra with a large, common, subcordate or subquadrate 

 patch at the base (extending outwards to the humeri), and a very 

 broad subapical fascia, black. 



Hab. Mexico, Acapulco and Chilpancingo in Guerrero 

 {Hoge, H. H. Smith). 



Var. S. Elytra as in y, but with the broad subapical black patch 

 extending to the apex. 



Chauliognaihus distinguendus, Gorh., loc. cit. p. 71 {nee 

 Waterh.). 



Hab. Mexico, Huanchinango {Truqui), Oaxaca. 



(J. Aedeagus : median lobe long, stout, curved, the apical portion 

 obliquely produced and narrowed towards the tip; lateral lobes 

 sinuate, the left lobe long, concave, somewhat dilated on the ventral 

 aspect towards the apex, curved inward at the tip, the tip itself 

 truncate and armed on each side with a short hook, the right lobe 

 much shorter than the left, compressed, curved outward, and 

 obtuse at the tip. Plate V, fig. 13. 



The numerous specimens from Durango, Guerrero, Vera 

 Paz, etc., show all the gradations between C. distinguendus 

 and the forms named by Gorham. : C. tabulatus differs in 

 no way from the type ; C. tricolor is based on freshly emerged 

 examples with the outer limb of the elytra rosy-red; 

 C. jucundus included a series from Vera Paz with the 

 black portion of the elytra more extended than in C. 

 tricolor, a similar series from Durango only differing from 

 it in having the apical margin narrowly yellow; the forms 

 y and 8 have a broad ochreous or flavous median fascia 

 extending upwards at the sides to the shoulder. The 

 bihamate apex of the left lateral lobe of the (J-aedeagus 



