CHEYSOBOTHRIS. 45 



medium gutta parva inconspicua prope marginem, costa suturali (basi obliterata) minus regulari ; prosterno 



subtilissime punctulato, fere lsevi. 

 d 1 abdominis segmento ultimo apice profunde emarginato ; $ sinuato, angulis prominulis, dentiformibus. 

 Long. 8-9 lin. 



Hab. Mexico, Oaxaca (Salle). 



Allied to C. cerea, but with more parallel thorax. The surface of the elytra is 

 rugulose, with punctuation intermixed ; the small basal brassy fovea and the fovese on 

 the disc stand out very distinctly from the dark surrounding surface. The apex of the 

 abdomen in the female (Tab. III. fig. 18 a) is very similar to that of the male, but less 

 deeply emarginate. 



30. Chrysobothris costifrons. (Tab. III. fig. 19.) 



Chrysobothris costifrons, Chevr. in litt. 



Chrysobothris area, Horn, Trans. Am. Ent. Soc. xiii. p. 104, t. 6. figg. 173-177 x (nee Chevr.). 



Prsecedenti affinis, differt tamen elytrorum macula basali majore, macula discoidali minus splendente, majore, 



plagaque post medium obliqua distincta. 

 Long. 8-10 lin. 



Hab. Noeth America, Arizona (Morrison 1 ). — Mexico, Northern Sonora (Morrison), 

 Orizaba (Salle), Oaxaca l . 



This insect might perhaps by some persons be regarded as a local form of C. stellifera ; 

 it appears to me, however, to merit the rank of a species. The basal fovea of the elytra 

 is larger, and there is a more distinct impression on the shoulder. The surface of the 

 elytra is moreover differently sculptured : in G. stellifera there are very numerous small 

 raised black rugse with fine punctuation between ; in C. costifrons the finely punctured 

 surface prevails, the irregular raised rugse being much fewer in number and more con- 

 fined to the sides. The spot before the middle of the elytra is much larger and more 

 quadrangular ; the surface immediately behind it is finely punctured, and followed by 

 an elongate very shallow oblique impression extending nearly from the margin to the 

 sutural costa ; behind this impression there is a very irregular slightly raised black border, 

 emitting posteriorly two short ridges towards the margin. The apex of the abdomen in 

 the male (Tab. III. fig. 19 a) is more emarginate than in the female (fig. 19 b). 



31. Chrysobothris distincta. 



Chrysobothris distincta, Lap. & Gory, Mon. iv. p. 176, t. 30. f. 171 l . 



Hab. Mexico \ Puebla and Matamoros Izucar (Salle, Hoge), Yautepec, Caernavaca, 

 Mexico city, Almolonga, Oaxaca, Cerro de Plumas (Hoge); Guatemala, Rio Paz 

 (Salle). 



A male specimen from Guatemala has the head and antennae bright green ; but this 

 coloration appears to be a mere individual variation. It is not a sexual character 

 as is sometimes the case, both sexes being before me. 





