68 
Psyche 
[June-September 
length of the basal tergite, interspersed with reticulo-punctulation ; 
remaining half of tergite nearly completely smooth, distinctly shining. 
Pilosity as usual in S. louisianae, but a little coarser than the average. 
Color dark ferruginous, but not as dark as some specimens of the 
“ unidentatci” conformation from the wet Serra do Mar, the coastal 
mountain strip of Sao Paulo ; these latter samples approach black. 
The fusca type is similar to producta as well as to more “typical” 
louisianae , but differs in details of cephalic proportions and in sculp- 
tural details. The body of the fusca type is more robust, and the hairs 
of the pilosity are larger throughout. The preapical tooth is larger 
and is situated a little farther from the apical fork. 
Descriptive Note on the Lectotype of S. unidentata 
Lectotype worker: TL 2.2, HL 0.55, ML 0.36, WL 0.54 mm; Cl 
79, MI 66. Despite its slightly smaller size and wider head, there 
is little doubt that this type and the species I described as clasmospon- 
gia are conspecific. I have partially cleaned and reexamined the 
postpetiole and gaster in the available types of unidentata and clas- 
mospongia, and the postpetiole is now seen to vary from weakly to 
moderately shining discad, while the gastric dorsum now appears as 
smooth and shining, with reticulation nearly or quite absent, except 
for the basal costulae. The frequent presence of a refractory hardened 
secretion (?) on the gastric dorsum is misleading when describing 
sculpture in a number of dacetine groups. The specimen now in the 
Naturhistorisches Museum in Vienna has been selected as lectotype, 
and is so labeled. 
Synoptic Synonymy of Stru/nigenys louisianae 
In the list below are found the names currently considered to be 
synonyms of S. louisianae. Full page references for each synonym are 
to be found in Brown, 1935b, p. 28, or, in the case of new synonymy, 
with the species heading above. 
S. louisianae Roger, 1863 
= unidentata Mayr, 1887, n. syn. 
^ unispinulosa Emery, 1890. 
— unispinulosa var. longicornis Emery, 1894. 
— fusca Emery, 1894, n. syn. 
— louisianae var. obscuriventris Wheeler, 1908. 
= bruchi Forel, 1912. 
— inpdelis Santschi, 1919. 
— eggersi var. cubaensis Mann, 1920. 
= louisianae subsp. laticephala M. R. Smith, 1931. 
— louisianae subsp. soledadensis Weber, 1934. 
= louisianae subsp. guatemalensis Weber, 1934. 
— louisianae subsp. costaricensis Weber, 1934. 
= clasmospongia Brown, 1953, n. syn. 
