Ins. 175 
HYMENOPTERA FOSSORIA, FORMICIDCE. 
Sphex maxillosa , food-habits, Hoemke, p. 9, lllustr. Zeitschr. Ent. iv; 
S. elegans , habits, Davidson, p. 179, Ent. News Philad. x. 
S. englebergi , Capetown, Brauns, p. 392, Ann. Hofmus. Wien xiii; S. 
subhyalinus , Brazil, Fox, p. 199, P. Ac. Philad. 1899 : n. spp. 
Stenocrcibro n. g. type C. planipes Fox, Ashmead, p. 216, Canad. Ent. 1899. 
Stizidce ; table of genera, Ashmead, pp. 345-347, t. c. 
Synorhopalum n. g. type C. clecorus Fox, Ashmead, p. 218, t. c. 
Synothyreopus n. g. type C. tumidus Pack., Ashmead, p. 213, t. c. 
Thynnidce , table of genera, Ashmead, pp. 49-52, J. N. York. Ent. Soc. vii. 
Thyreopince , table of genera, Ashmead, pp. 212-217, Canad. Ent. 1899. 
Timidia n. g. for Mutilia dubitata Sm., Ashmead, p. 55, J. X. York Ent. 
Soc. vii. 
Trogaspidia n. g. for M. medon Sm., Ashmead, p. 58, t. c. 
Trypoxylidce ; the genera, Ashmead, p. 297, Canad. Ent. 1899. 
Typhoctes n. g. for Mutilia peculiaris Cress., Ashmead, p. 53, J. N. York 
Ent. Soc. vii. 
Xestocrabro n. g. type C. 6-maculatus Say, Ashmead, p. 169, Canad. 
Ent. 1899. 
Xylocrabro n. g. type C. stirpicola Pack., Ashmead, p. 169, t. c. 
Formicid.e (or Heterogyna). 
[The following memoirs relate to Formicidce viz.:— Emery (340-343), 
Escherich (349), Forel (410-413, 475), Janet (600-604), Ludwig 
(771), Mantero (785), Wasmann (1193, 1203, 1208, 1213, 1214), 
Webster (1217), Weld (1226).] 
Morphology and anatomy of head, brain, unpaired sympathetic system, 
cephalic nerves, corpora allata, tentorium, segmental invaginations of 
Myrmica rubra, Janet (601). 
The psychology of Ants, with many Natural-history observations, Was¬ 
mann (1193). 
Ant psychology, Escherich (349). 
Experiments on hearing, Weld (1226). 
Note on the transport of mushrooms to new nests, Janet (602). 
Ants as distributors of seeds, Ludwig (771). 
The food of Messor structor , Emery (343). 
Habits of numerous ants in North Carolina, Forel (413). 
Pseudogynes of Formica rufa due to Atemeles and Lomechusa , Wasmann 
(1203). 
The ants of Central America, Forel (475). 
Formicidce of the Hawaiian islands, Forel (412). 
Colonies of Myrmica destroyed by a special fungus, Wasmann (1203). 
Acantholepis nigriventris , Cameroons, Emery, p. 493, Ann. Soc. ent. 
Belgique 1899, n. sp. 
Anochetus africanus and var. cameruensis discussed, Emery, p. 476, t. c. 
Aphcenogaster phalangium var. n. brevicollis, p. 59, araneoides var. n. 
inermis , p. 60, Forel, Biol. Centr.-Amer. Hym. iii. 
Aphcenogaster oculata, Madagascar, Emery, p. 276, Bull. Soc. ent. Ital. 
xxxi; A. ( Ischnomyrmex) ensifera , Mexico, Forel, p. 59, Biol. Centr.- 
Amer. Hym. iii : n. spp. 
Aphomomyrmex n. g. near Plagiolepis , p. 493, for A. afer n. sp., Cameroons, 
p. 494, and Dimorphomyrmex andrei Em., Emery, Ann. Soc. ent. 
Belgique 1899. 
Apterostigma collare £ , p. 38, pi. i, fig. 19, worker fig. 18, Forel, Biol. 
Centr.-Amer. Hym. iii. 
Atopomyrmex cryptoceroides = (deplanatus Mayr), Emery, p. 477, Ann. Soc. 
ent. Belgique 1899. 
