32 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 125 
The species is related to L. dissimile Mosely, from which it differs 
in the much shorter apical process of the aedeagus. The following 
descriptions are based on Grenadan specimens. 
Apvuutr.—Length of forewing: male 11 mm, female 12-14 mm. 
Color pale green. Female with a yellowish cellule on vein 1A in hind- 
wing. Male genitalia: ninth segment narrow, posterior margin angulate 
above base of clasper; tenth tergite trianguloid in lateral view, with 
an apical setate patch, dorsoapically with 2 short processes; clasper 
long and slender, no mesobasal lobe; basal and apical segments with 
patches of short spinelike setae mesoapically; aedeagus with apex 
bearing 2 pairs of fimbriate processes, a ventrally directed process 
basad of gonopore, and a posteriorly directed fimbriate process 
appressed to side of aedeagus. Female genitalia: lobes of eighth 
sternum about 34 as broad as long; ninth segment with a shallow 
pouchlike dorsally directed receptacle and a lateral groove with a 
heavily sclerotized ventral margin leading to a rounded internal 
plate. 
Larva.—Length to 17 mm. Head and thoracic notae brown, paler 
around eyes and posteriorly on head. Process anteroapically on 
forecoxae arising from inner margin, with setal row passing anteriorly 
of it. Abdomen covered very densely with erect or decumbent broad, 
black setae. 
Pupa.—Unknown. 
MareriaL.—Grenada, Lake Grand Etang, 4-6 Aug. 1963, O. S. Flint, Jr., 
29. Lake Grand Etang, 2 miles west, 4-8 Aug. 1963, O. S. Flint, Jr.. 17 29, 
2 larvae. Great River, Balthazar, 8 Aug. 1963, O. S. Flint, Jr., many larvae. 
St. Vincent, 2c? 1? recorded by Mosely, 1933, p. 47 and verified by Kimmins 
(pers. comm.). 
Brotocy.—The larvae have been taken in both a small tumbling 
mountain brook and a riffle in a large lowland river. Both, however, 
are clear and rapid with a bottom of rocks and gravel. 
Family HypRopriLiDAE 
This family contains the smallest species of the order. Most of the 
adults are only a millimeter or two long with the largest reaching 
about five millimeters. The Lesser Antules contain at least 23 species 
in 8 genera, or 50 percent of the total species in the order from these 
islands. 
The larvae undergo hypermetamorphosis in which the first four 
instars are slender, bear long setae, are free living, and are brief in 
duration. In the fifth instar, the larvae construct their cases and 
undergo the greater part of their growth, often changing their shape 
radically. 
