436 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 112 



Types: Holotype, male, Espirito Santo, Rio Sao Jose, Brazil, 

 Santos Soares collector, USNM 63086. 



The straight margins of the abdominal terga easily separate this 

 small species from others 14.0 mm. or less in length. The circular 

 elevation on either side of the sixth and the unusual length of the eighth 

 sterna identify it. 



Ghilianella signata McAtee and Malloch 



Figures 16, 100 

 Ghilianella signata McAtee and Malloch, 1925, p. 120 (female). 



Male: Brownish, last four abdominal segments blackish brown. 



Legs and antenna covered with short appressed scarce pilosity. 

 Pilosity on body longer and in patches; more abundant on base of 

 interantennal spine, frons, and sides of neck; pro thorax anteriorly on 

 sides around neck, mesothorax and metathorax anteriorly on sides; 

 above and below abdominal segments in patches of 4 to 10 setae. 

 Abdomen with a total of 12 extensive patches of whitish hairs and 

 of nearly same extension as follows: 2 apically on fourth, fifth, and 

 sixth terga; 2 apically on fourth, fifth, and sixth sterna. 



Head not granulose, eyes moderately large. Interantennal spine 

 long, slightly decurved. Fourth antennal segment slightly less than 

 twice as long as third. 



Thoracic segments not granulate; lengths of segments: 2.8, 3.7, 2.2 

 mm. Armature of forefemur with inner row consisting of alternate 

 long and short spines and between them longer fine setae. Claws of 

 foretarsi two; the inner one shorter, appressed to base of first. First 

 spine of forefemur at four times its length from tip of trochanter. 

 Basal half of forefemur gradually thickened to first spine. 



Abdomen with bulbosity. Abdominal terga conspicuously convex. 

 Abdomen in dorsal aspect parallel to apical three-fourths of fourth 

 segment. Apical fourth of fourth segment much wider and forming 

 base of bulbosity. Fifth segment constituting major and widest part 

 of bulbosity, the margins of the tergum produced over lateral margins 

 of segment, produced in a point at about midlength of segment (fig. 

 100). Base of sixth segment wider than remaining portion, thence 

 parallel sided to apex, one-third longer than fifth. Seventh tergum 

 bent upward, longer than sixth, narrowed portion beginning at basal 

 two-fifths and longer than either basal or apical portions; apex very 

 slightly surpassing claspers, transversely corrugated. Hind margin 

 of second to fifth sterna straight; of sixth and seventh shallowly con- 

 cave; of seventh shortly produced medianly. Sixth sternum less than 

 twice as long as seventh; eighth visible on its entire width. Hypopy- 

 gium opening cephalad, much deeper than abdomen at sixth segment; 



