16 



of the abdo-men, and in the form of the supra-anal plate of the 

 male. In obesa this plate is as wide as long^, in compacta it is dis- 

 tinctly l<Mig-er than wide. The lateral carinaeof the pronotum are 

 equally as distinct or even better developed than in obesa and less 

 irreg-ular in course, in obesa being- broken or ang^ulate at the anterior 

 and middle sulci, forming" two pairs of lines, diverg-ing- posteriorly, 

 while in compacta they form essentially but one pair of divergent 

 lines though somewhat sinuous (female) or subangulate (male) at 

 the crossing- of the sulci. 



Antenna: male, 7; female, 7; hind fem.; male, 10-10.6; female, 

 10.5-11.5; pronotum: male^ 3.7-4.2; female, 4.2-4.5; total length: 

 male. 18-19.5; female. 20-25 mm." 



Paj^es 1-12 of Volume I relate wholly to the Homop- 

 tera and contain the following- articles: 



1. On the Guathodvis species of the ^tbdomiim lis g-roup. 



2. A new g-enus of the Typhlocjbini. 

 ?,. The genus Erythria in America. 



4. New Tvphlocybini. 



5. Notes on Macropsis. All by C. F. Baker. 

 Three new g-enera are characterized and twenty-six 



new species described. The price of this part is twenty- 

 five cents. 



The price of the present part, pag-es 13-16, is ten cents. 



