BRACHYGLUTINI 137 



foveae, these are subequal in size and have a relatively constant 

 position, namely two placed between the eyes, and median fovea be- 

 tween the antennal bases; (2) vertex normally convex or flattened 

 between the eyes; (3) antennae with the segments normal; (4) 



femora and tibiae normal 2 



Species in which both sexes, or the male sex only, have at least one, 

 frequently two or more, of the following essentially abnormal items: 

 (1) anterior fovea of head normal in position between the antennal 

 bases, but minute in size as compared with the two foveae between 

 the eyes; (2) anterior fovea abnormally placed, incising the frontal 

 margin, or lodged entirely on the steeply declivous front; (3) an- 

 terior or frontal fovea wholly absent, in which case the head has but 

 two vertexal foveae; (4) vertex abnormal, either medianly vaulted 

 and swollen, or with a median longitudinal carina or obtuse eleva- 

 tion; (5) antennae with one or more segments very abnormal in 

 shape, size or bearing accessory foveae, spines or other deformities ; 

 (6) femora or tibiae or both, on one or more pair of legs, abnormally 

 swollen, dilated, compressed or excavated 7 



2. Each elytron with three basal foveae 3 



Each elytron wdth two basal foveae 5 



3. Lateral pronotal foveae circular to subcircular 4 



Lateral pronotal foveae transversely oval, or distinctly wider than 



long Group X. 



4. Basal discal carinae of first tergite relatively very long, at least one- 



half of the segmental length Group VI. 



Basal discal carinae of first tergite relatively very short, not more 

 than one-fifth of the segmental length Group IX. 



5. Pronotum glossy and polished, very lightly punctulate; elytra dis- 



tinctly punctate Group XVII. 



Body glossy and polished, very lightly punctulate 6 



6. Dorsal or discal stria of each elytron well-developed, long, extending 



beyond the middle of the elytral length Group XX. 



Dorsal or discal stria of each elytron shorter, not extending beyond 

 the middle of the elytral length Group XXI. 



7. Dorsal surface of head with three subequal, normally placed foveae, 



e.g. two between the eyes, and one between the bases of the antennae 8 

 Dorsal surface of head abnoniial in one of the following ways: (1) 

 vertex medianly, longitudinally carinate or obtusely elevated; (2) 

 vertex vaulated and swollen medianly; (3) the anterior or frontal 

 fovea minute but normally placed between antennal bases; (4) an- 

 terior fovea incising the frontal margin or wholly on the declivous 

 front; (5) the anterior or frontal fovea wholly absent 11 



8. Posterior tibiae normal, neither dilated, nor flattened nor excavated. . 9 

 Males with the posterior tibiae abnormal, either dilated with a long 



