ART. 25 MEGAEIDIN"AE AN"D CAXOPIE'AE McATEE AISTD MALLOCH 13 



contrasted group, apical segment of antenna more or less pale at base; 

 subcostal series of punctures on corium in a rather pronounced depres- 

 sion, the area between them and the impressed vein markedly ele- 

 vated 9 



2. Males 3 



Females 5 



3. Head more pointed apically (fig. 29), the pronotum with a slight shoulder, 



sides posteriorly almost straight (fig. 27) ; hind margin of hypopygium, as 

 seen from below, with two rather prominent posterior angulations, the 

 section between them longer than that part of the border laterad of either 

 angle, the distinctly emarginate median section, as seen from behind, thin 



and carinate (figs. 34, 35) germari, new species. 



Head more rounded apically (fig. 30), pronotum regularly rounded on sides 

 or almost so, sides not straight posteriorly (fig. 28) ; hind margin of 

 bypopygium, as seen from below, with two slight, rounded posterior ex- 

 tensions, the section between them shorter than that part of the border 

 laterad of either angle (fig. 40) 4 



4. Median section of hind margin of hypopygium, as seen from above, rather 



thick and rounded, the ventral exposure not wrinkled nor punctate (figs. 



40, 41) ; femora unicolorous fabricii, new species. 



Median section of hind margin of hypopygium thinner; ventral exposure 

 quite conspicuously transversely striate, wrinkled posteriorly, and with a 

 few coarse punctures each side (figs. 38, 39) ; femora each with a median 

 pale annulus hurmeisteri, new species, 



5. Head more rounded apically, pronotum evenly rounded on lateral margin, 



less noticeably so in 'burmeisteri ; highest point of the swollen inner 

 margins of genital plates at apex, or at least the apical inner angles 



not depressed, the margins thick 6 



Head more pointed apically (fig. 29), pronotum not evenly rounded on 

 lateral margins (fig. 27) ; inner apical, or posterior, angle of genital 

 plates generally depressed so that the edge is sharp and the highest point 

 of the swollen inner margins is before the apex germari, new species. 



6. Inner swollen margins of genital plates most elevated at about the middle, 



constricted posteriorly, so that together (as seen from rear) they form 



an elliptical figure fabricii, new species. 



Inner swollen margins of genital plates most elevated posteriorly 7 



7. Each genital plate forming a broadly triangular figure, with a transverse 



depression across base, the central angles quite prominently elevated and 

 produced posteriorly, a conspicuous depression just laterad of same in 

 margin (fig. 42) ; femora each with a distinct median pale annulus. 



burmeisteri, new species. 

 Genital plates not triangularly produced posteriorly ; femora unicolorous— 8 



8. Brachial field distinctly punctate; genital plates nearly flat except for 



moundlike swellings near the most elevated portions of inner margins, 

 which are more abruptly elevated than in the contrasted species. 



andinus Horvath. 

 Brachial field only obsoletely punctate ; genital plates tumid anteriorly, with 

 swollen, polished inner margins, which are most elevated, and also widest, 

 posteriorly, so that together they form a narrowly triangular figure, the 

 most elevated portion of which is by no means produced so far as in 

 burmeisteri globosus Horvath, 



9. Males 10 



Females 12 



