on the cytology of two species 
(Diptera-Tephritidae), 307 
The habitat of Platypatrobus Dar- 
lington (Coleoptera: Carabidae), 
304 
The habits and distribution of 
Cryptocerus rohnveri Wheeler 
(Hymenoptera : Formicidae), 59 
The habits and distribution of Mac- 
romischa subditlva Wheeler (Hy- 
menoptera. Formicidae), 282 
The taxonomic problem of sexual 
dimorphism in spiders and a syn- 
onymy in Myrmecotypus (Ar- 
aneae, Clubionidae) , 279 
The types of Proctotrupoidea (Hy- 
menoptera) in the Charles T. 
Brues Collection at the Museum 
of Comparative Zoology, 295 
Thomisidae, 291 
Tmarus craneae, 230 
T marus farri, 232 
Tmarus insuetus, 234 
Tmarus menotus, 236 
Tmarus vertumus, 238 
Trail sharing in ants, 2 
Typhlomyrmex clavicornis, 69 
Typhlomyrmex foreli, 76 
Typhlomyrmex major, 71 
Typhomyrmex prolatus, 72 
Typhlomyrmex pusillus, 73 
Typhlomyrmex rogenhoferi , 74 
Xysticus humilis, 291 
Zagreus costalimae, 148 
Zagreus tetraspilus, 149 
Zonosemata cocoyoc, 319 
Zonosemata electa , 314 
Zonosemata minuta, 320 
Zootermopsis laticeps 113 
Zonosemata vidrapennis, 321 
Zonosemata vittigera , 315 
329 
