MORGAN HEBARD 183 



examination fails to reveal other features of diagnostic value, 

 however, and we believe that these all represent the same species. 



In the material here recorded the pair of heavy dark bands 

 on the occiput vary in intensity. In some these bands are 

 obsolete on the pronotum, but in the majority of specimens 

 they heavily suffuse all of the lateral portions of the pronotum 

 on each side. In this series the cephalic coxae are buffy, the 

 median and caudal limbs more reddish. The cephalic tro- 

 chanters, proximo-internal portion of the cephalic femora and 

 external surface of the same are conspicuously darkened to 

 varying degrees, the external surface of the cephalic tibiae but 

 slightly paler. The tarsi are sometimes unicolorous, sometimes 

 darkened at the apices of the joints. 



Each series, of the four from widely separated localities before 

 us, representing may a, shows certain color differences and 

 those noted here, which do not all agree with the type, un- 

 doubtedly constitute only local color adaptations of no specific 

 or racial significance. 



Length of body, 16 to 17.7; length of antenna, 24.5 to 25.7; 

 length of pronotum, 2.3 to 2.3; width of pronotum, 2.1 to 2.2; 

 length of tegmen, 16.2 to 16.7; length of caudal femur, 5.7 to 

 6.3 nun. 



AMELINAE 



Yersinia mexicana (Saussure) 



1859. A[c(t)i{h<)ij.'i] inexicanus Saussure, Rev. et Mag. de Zool., (2), xi, p. 00. 

 [cf (nee larva); [Michoacan,] Mexico.] 



Venvidio, VIII, 2 to IX, 2, 1918, 12 d', 5 9 . Villa Union, II, 

 21 and IX, 27, 1918, 1 cT", 1 9. 



This handsome species was subsequently fully descrilied by 

 Saussure.''^ The specimens before us are all brown, some pale 

 and immaculate, others variable, darker with flecks of dark 

 brown. The cephalic coxae are sometimes immaculate, but 

 usually have a row of dark flecks on the dorso-internal margin 

 and rarely a dark suft'usion distad. The cephalic femora are 

 rarely immaculate, usually having on the internal surface a 

 large, shining, roughly sriuare, black mai'kitig al the unguicular 



3« Mem. I'Hist. Xut. Mex., iv, Mantules, j). «)<), pi. i, li^.-^. 1 i, 14a and 15, 

 (1871). 



TRANS. AM. ENT. SOC, XLVUI. 



