MORGAN HEBARD 
431 
Explanation of Plate XXVIII 
The figures, unless otherwise specified, are all greatly enlarged. 
Fig. 1. — Pyragra fuscaia Serville. Dorsal view of apex of male abdomen 
and forceps, normal condition. Fortin, Vera Cruz, Mexico. 
(X 2.4) 
Fig. 2. — Pyragra fuscaia Serville. Dorsal view of apex of male abdomen 
and forceps, showing very unusual differentiation. San Rafael, 
Vera Cruz, Mexico. (X 2.4) 
Fig. 3. — Prosparatta flavipennula (Rehn). Dorsal view of male pygidium. 
Motzorongo, Vera Cruz, Mexico. Topotype. 
Fig. 4. — Prosparatta flavipennula (Rehn). Dorsal view of apex of male 
abdomen and forceps. Motzorongo, Vera Cruz, Mexico. Topo- 
type. (X 6.4) 
Fig. 5. — Prolabia triquetra new species. Outline of female antenna. Orizaba, 
Vera Cruz, Mexico. Allotype. 
Fig. 6. — Prolabia triquetra new species. Dorsal view of sinistral arm of male 
forceps. Orizaba, Vera Cruz, Mexico. Type. (X 9.2) 
Fig. 7. — Prolabia triquetra new species. Dorsal view of apex of female ab- 
domen and forceps. Orizaba, Vera Cruz, Mexico. Allotype. 
(X 6.5) 
Fig. 8. — Euborellia antoni (Dohrn). Lateral view of apex of female abdomen 
and forceps. Tonala, Chiapas, Mexico. (X 2.1) 
Fig. 9. — Sparatta w-signata Burr. Dorsal view of apex of male abdomen 
and forceps. Motzorongo, Vera Cruz, Mexico. (X 4) 
Fig. 10. — Parasparatta dentifera (Rehn). Dorsal view of apex of male ab- 
domen and forceps, showing highest specialization. Orizaba, Vera 
Cruz, Mexico. Topotype. (X 4.4) 
Fig. 11. — Parasparatta dentifera (Rehn). Dorsal view of apex of female 
abdomen and forceps. Orizaba, Vera Cruz, Mexico. Topo- 
type. (X 5.3) 
Fig. 12. — Anechura vara (Scudder). Lateral outline and dorsal view of male 
forceps, showing highest specialization. Chalchicomula, Puebla, 
Mexico. (X 5.8) 
Fig. 13. — Anechura vara (Scudder). Lateral outline and dorsal view of male 
forceps, showing moderate specialization. Chalchicomula, Puebla, 
Mexico. (X 4) 
Fig. 14. — Anechura vara (Scudder). Lateral outline and dorsal view of male 
forceps, showing least specialization. Chalchicomula, Puebla, 
Mexico. (X 4.5) 
Fig. 15. — Skalistes lugubris (Dohm). Dorsal view of male forceps, showing 
highest specialization. Orizaba, Vera Cruz, Mexico. (X 3.7) 
Fig. 16. — Skalistes lugubris (Dohrn). Dorsal view of male forceps, showing 
least specialization. Orizaba, Vera Cruz, Mexico. (X 3.3) 
TRANS. AM. ENT. SOC., XLIII. 
