394 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 112 



Thanks to the cooperation of the entomologists listed below, I 

 was able to see many types and received many specimens for study 

 and identification. To all I am greatly indebted: 



Dr. J. Carayon, Museum National D'Histoire Naturelle (MNHN), 

 Paris. 



Dr. Mont. A. Cazier, American Museum of Natural History 

 (AMNH), New York City. 



Dr. P. J. Darlington, Museum of Comparative Zoology (MCZ), 

 Harvard, Cambridge, Massachusetts. 



Dr. Thomas H. Farr, Institute of Jamaica (IJ), Kingston, Jamiaca, 

 West Indies. 



Dr. Theodore H. Hubbell, Museum of the University of Michigan 

 (MUM), Ann Arbor, Michigan. 



Dr. John Miller, Chicago Natural History Museum (CNHM). 



Dr. Edward S. Ross, California Academy of Science (CAS), San 

 Francisco. 



Dr. Reece I. Sailer, U.S. Department of Agriculture, especially 

 for loaning unidentified material and permitting me to examine the 

 type material deposited in the U.S. National Museum (USNM), and 

 for his detailed review of the manuscript of this paper. 



Dr. George Wallace, Carnigie Museum (CM) at Pittsburgh, 

 Pennyslvania. 



Dr. Petr Wygodzinsky (PW), Instituto de Medicina Regional, 

 Universidad Nacional, Tucuman, Argentina, especially for loaning 

 me abundant material from his collection and other material under his 

 temporary care, especially that from the Vienna Museum (VM). 



Genus Ghilianella Spinola 



Ghilianella Spinola, 1850, p. 102. 



The following descriptions are abstracted from McAtee and Malloch 

 (1925): 



Genus Ghilianella Spinola: foretarsi without distinguishable seg- 

 mentation under the highest power (even when cleared), consisting 

 of but one heavily chitinized segment, with an unequal pair of claws, 

 a single claw, or without distinct claws. Foretarsus with two longi- 

 tudinal series of angularly deflected spines, which under high power 

 appear like elongate knifelike teeth on its ventral surface. Head 

 with a more or less pronounced spine or tubercle between bases of 

 antenna, labrum closely adherent to base of rostrum, not projecting 

 spine-like. Adults never winged. Head and thorax more or less 

 granulate, the former with a profound constriction anterior of eyes. 

 Mesothorax and metathorax each tricarinate or with a median carina 

 and lateral rows of tubercles above and usually unicarinate below. 



