Hemiptera, 42 
Heteroptera. 42 
Hymenoptera, 1, 62, 73, 77, 107, 238 
Infrabuccal pocket of a formicine 
ant: a social filtration device, 107 
Latrodectus, 268 
Lithophotina floccosa, 102 
Lycosidae, 129 
Lycus loripes, 54 
Lygaeidae, 42 
M ACELLORIS INCRASSATUS, 43 
Male of Platypatrobus lacusiris 
Darlington (Coleoptera: Carabi- 
dae), 7 
Manteodea, 102 
Megasecoptera, 37 
Mexican fruit flies, 87 
More American spiders of the genus 
Chrysso (Araneae, Theridiidae) , 
209 
Neotropical species of the ant genus 
Strumigenys Fr. Smith: synopsis 
and keys to the species, 238 
Notes on fossil Cleoniniae (Coleop- 
tera: Curculionidae) , 47 
Oocyte development, 165 
Orthoptera, 102 
Pheromone, 53 
Platypatrobus lacustris, 7 
pseudoscymnus, a new genus of 
Asiatic Scymnini (Coleoptera: Coc- 
cinellidae), 50 
Redescription of Lithophotina floc- 
cosa Cock. (Manteodea) with 
some notes on the manteod wing 
venation, 102 
Scymnini, 50 
Sosippus agalenoides, 146 
Sosippus calif ornicus, 139 
Sosippus floridanus, 151 
Sosippus mexicanus, 145 
Sosippus michoacanus, 148 
Sosippus mimus, 156 
Sosippus plutonus, 150 
Sosippus texanus, 160 
Spider genera Steatoda and Eno- 
plognatha in America (Araneae, 
Theridiidae), 11 
Spider genus Sosippus in North 
America, Mexico, and Central 
America (Araneae, Lycosidae), 
129 
Steatoda ancorata, 34 
Steatoda andina, 26 
Steatoda chinchipe, 32 
Steatoda diamantina, 31 
Steatoda erigoniformis , 25 
Steatoda grossa, 26 
Steatoda iheringi, 31 
Steatoda marta, 28 
Steatoda moesta, 25 
Steatoda porteri, 33 
Steatoda sabulosa, 30 
Steatoda triangulosa, 25 
Steatoda variipes, 33 
Strumigenys , 238, 267 
Tachys bolellus, 127 
Tachys bolus, 125 
Tachys ectromioides, 124 
Tachys fitzroyi, 123 
Tachys hobariti, 118 
Tachys kingi, 121 
Tachys lutus, 120 
Tachys murrumbidg ensis , 122 
Tephritidae, 87 
Theridiidae, 11, 209 
Trinidad cave ant Erebo myrma 
( — Splaeomyrmex) urichi (Whee- 
ler), with a comment on cav- 
ernicolous ants in general, 62 
273 
