166 Journal of the Mitchell Society [-!/".'/ 



200. Apical tootli of the genital styles slioit, the inner maigins of the genital 



styles deeply notched near the base 619 E. incisa Metcalf 



Apical tooth of the genital styles long 620 201 



201. Apex of the genital styles obli«iuely truncate 620 H. (utstruUs Metcalf 



Apex of tlie genital styles broadly rounded 621 H. nbscura Ball 



SUBFAMILY DELPIl AC I X.K 



202. Calear f oliaceous or tectif orm 557 219 



Calcar not f oliaceous or tectif orm 540 203 



203. Calcar spiniform, without lateral teeth 542 ■. 208 



Calcar cultrate, with a row of marginal teetli, antcMiiuv tliittened 540 



Genus Stobcera Stal 204 

 STOB.ERA 



204. Sides of the frons not ])arallel 369 Sidhwra pallida Osborn 



Sides of the frons nearly i)arallel 371 205 



205. Frons distinctly lighter in the middle, base and apex darker 206 



Frons not paler in middle, with base and apex darker 207 



206. Head narrower than pronotum ; anal process trilobed ventrally; genital 



styles with the inner angles strongly produced 6-23 S. concinna Stal 



Head as broad as pronotum ; anal process not trilobed ventrally ; genital 

 styles with the inner angles strongly reflexed 624 S. tricarinata Say 



207. Vertex distinctly shorter tlian broad; frons nearly concolorous ; larger, 



4 mm S. affinis Van Duzee 



Frons light below, dark above; vertex (piadrate; smaller, 3 mm. 372 



S. minuta Osborn 



208. Antenna- foliaceous, half as long as the body; scutelium triearinate; frons 



with a single median carina 96 Copicerus irroratus Swartz 



Antennae not foliaceous, short; scutelium quinquecarinate; frons with two 

 median carina? 19 , Genus Peiitagramma Van Duzee 209 



209. Size small; genital styles of the male sliort, slender, enclosing a nearly 



circular area 627 Prutafirumma minorc Crawford 



Size large; genital styles of the hkiIc cldiigate, robust, enclosing an elongate 

 oval area 628 P. vittatifron^ Uhler 



210. First segment of antenna^ tlattened ; head broader than the pronotum 380 



Bosta'ia nasuta Ball 

 First segment of antenna' not flattened 211 



211. Frons nearly <-iicular in outline; antenna' and calcar very short 383 



BakcrcUa macu'lnta Crawford 

 Frons not cii'cul.'ir in outline 385 212 



212. Frons, pronotum and abdomen with prominent jtits 



Genus Larcucira Van Duzee 213 

 Frons, pronotum and abilomen without prominent pits 214 



