472 



BUREAU OF ANIMAL USTDUSTRY. 



10. Spine of coxse IV as long as coxse or nearly so 11 



Spine of coxse IV shorter than coxse 12 



11 . Punctations of scutum lacking from the triangular projections, f at, radiating in 



posterior half (Mexico, Central and South America) A. cajennense. 



Punctations distributed over entire surface of scutum A. americanum, p. 474. 



12. Marginal swelling smooth or punctate 13 



Marginal swellings longitudinally striated (Australia) A. triguttatum. 



13. Scutum with light, median, anterior spot 14 



Scutum without light median spot 15 



14. Anterior spot on scutum separated from postero-median spot by transverse band 



(Africa) A. Hassalli. 



Anterior median spot connected with the postero-median spot (Africa) . A. splendidum. 



15. Punctations of scutum very numerous on entire surface 16 



Punctations few, absent from some places 19 



16. Spines of coxse I short 17 



Spines of coxse I very long (Central and South America) A. fossum. 



17. Spine of coxse IV very short and feeble 18 



Spine of coxse IV long and strong; body broad (Mexico) A. coelebs. 



18. Punctations very fine, obsolete (Brazil) . concolor. 



Punctations large, unequal (South America) A. Geayi. 



19. Punctations of scapular angles large, about 10 in number (on Spilotes variabilis) 



(Mexico and Central America or South America?) A. sparsum. 



Punctations of scapular angle very fine, 20 at least ( French Guiana) 



A. paulopunctatum. 



20. Design on scutum forming an H and a Y consecutively (Africa) A. eburneum. 



Design on scutum not formirtg an H or aY 21 



21. A coynplete transverse band near middle of length (Africa) A. subluteum. 



No such band present 22 



22. A linear postero-median spot present 23 



No s\ich spot present {?) A. clypeolatum. 



23. Linear postero-median spot separated from anterior spots (Africa) A. hebrxum. 



Linear postero-median spot continuous with anterior spots (Africa) . . A. marmoreum. 



24. Body broad, sides rounded 25 



Body straight, at least anterior portion, sides nearly straight 27 



25. Marginal groove continuous (Australia) A. morelise. 



Marginal groove formed of punctations 26 



26. No [.^] antero-lateral light spots (Australia) A. limbatum. 



Antero-lateral light spots present (Africa) A. latum. 



27. Coxx I with two very long spines (Brazil) A. striatum. 



Coxx I with two short spines (Congo) A. cuneatum. 



28. Eyes flat 29 



Eyes in orbit (Cape of Good Hope) A. sylvaticum. 



29. Punctations large and deep 30 



Punctations small 43 



30. Coxse II and III spinose or tuberculose 31 



Coxx II and III unarmed (Africa) A. Fodi. 



31. Body short, usually broader near the middle, sides rounded 32 



Body long, broader in back, sides nearly straight 42 



32. Punctations equal or subequal, large, abundant 33 



Punctations unequal, some large, others very fine 40 



33. Coxse IV with one spine 34 



Coxx IV with two short spines (Uruguay) A. gypsatum. 



34. Spine on coxx IV short 35 



Spine on coxse IV long , 41 



