Mexican and Central American Chauliognathinae. 161 



Var. a. Nigro-piceous, the prothorax sometimes in part yellow, 

 leaving the black spots sharply defined. (cJ ?•) 



Hab. Mexico, Toiiila and Zapotlan. 



(J. Aedeagus : median lobe obliquely bent; left lateral lobe 

 long, strongly sinuate, thickened in its basal half, hooked at the 

 tip; right lateral lobe much shorter than the left, compressed, 

 pointed at the tip. Plate VIII, figs. 30, 30a. 



Hoge has sent us a long series of this species, inckiding 

 various varieties, the insect having been described from a 

 few specimens from Guanajuato. In the type-form the 

 numerous black hieroglyphic markings on the prothorax 

 are sharply defined, these gradually becoming more and 

 more extended till the margins only remain yellow; the 

 elytra have each a narrow transverse mark or spot at the 

 base (frequently wanting), and often a rounded spot on 

 the disc beyond the middle, black; and the legs vary 

 in colour from almost wholly testaceous to black. The 

 dark variety is represented by seven examples. A very 

 distinct species, and recognisable by its shining surface 

 and peculiar prothoracic markings, which are usually 

 traceable in the dark form. C. scriptus (Germ.), from 

 Argentina, is not unlike C. Jiieroglyphicus , but it has 

 stouter posterior femora in the male. 



34. Chauliognathus terminalis. 



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

 iii, 2, p. 76. 



(J. Aedeagus : median lobe obliquely bent, produced at the 

 apex; left lateral lobe extremely elongate, slender, curved (as seen 

 in profile), feebly hooked at the tip ; right lateral lobe a little shorter 

 and much stouter than the left, sinuous, angularly dilated on each 

 side at the apex, and armed with a broad, acutely pointed, hook- 

 like process before the tip above (the apex appearing trifurcate when 

 viewed from in front). Plate VIII, fig. 37. 



Hab. Nicaragua; Costa Rica. 



Gorham's description of this species was taken from 

 three specimens in bad condition. Three others have 

 since been received, found by Pittier, at San Carlos. Costa 

 Rica. C. terminalis may be known by its opaque surface, 

 long head, with prominent eyes in the male, very slender 

 antennae, long, subquadrate prothorax, subulate elytra, 



TRANS. ENT. SOC. LOND. 1914. — PART I. (.JUNE) M 



