SITALCES.— (EDOMEEUS. 293 



lateral vittae are usually obliterated, leaving only the dorsal one. Antennae greenish, becoming darker 

 apically, the two basal joints yellowish. Genicular portion of hind femora tinged with rufous, without 

 black or fuscous marks. 

 Length of body, d 1 12, 5 14 ; of pronotum, 3 2-25, $ 2*90 ; of tegmina, g 1, <j> 1 ; of hind femora, 3 7"5, 

 2 8-65 inillim. 



lldb. Bkitish Guiana, Demerara {JR. J. Crew, in coll. L. Bruner), Bartica (J. A. G. 

 JRehn, in coll. Philad. Acad. Nat. Set.). 



Eleven males and eleven females. 



5. Sitalces sp. 



Sitalces sp., larva, Binmner, Berl. ent. Zeitschr. xiv. p. 256 (1900) \ 

 Hab. Colombia, Barranquilla 1 . 



This may be the nymph of one of StaTs species, S. punctifrons or S. coxalis, or it 

 may belong to either S. trinitatis, Bruner, or the S. ovatipennis of British Guiana 

 described above.] 



[(EDOMERUS, gen. nov. 



The representatives of the present genus may be recognized by their broad and robust hind femora, with the 

 lower carina very prominent and broadly arcuate, the narrow sulcate vertex, the more than usual oblique 

 face, the fairly robust and somewhat depressed body, the lateral, almost linear tegmina, and the coarse 

 more or less transverse prosternal spine. The hind tibiae are 7-spined in the outer row. Interspace 

 between the mesosternal lobes quadrate ( $ ), or slightly longer than wide ( <S ). Pronotum almost 

 without a median carina, the transverse sulci deeply impressed, the hind lobe less than one-half as long 

 as the anterior one, its posterior margin sinuose, widely emarginate in the middle. 



The two species inhabit Lower California. 



1. (Edomerus corallipes, sp. n. (Tab. IV. figg. 10, 10 a, <S; 14, 14 a, $ .) 



A brownish-testaceous insect, with the tegmina lateral and sublinear, the hind femora exceedingly robust, 

 and the hind tibiae 7-spined and red. Viewed laterally, the face is moderately oblique and the dorsum 

 of the pronotum gently arcuate, as is also the region of the junction of the thorax and abdomen. Pro- 

 notum, pleura, and dorsum of the abdominal segments rather coarsely punctate, the surface between 

 glabrous . 



Head about as wide as the front edge of the pronotum, subquadrate, possibly a little higher than broad ; the 

 occiput short, only gently rounded ; the vertex between the somewhat prominent eyes rather narrow, 

 about as broad as the diameter of the basal antennal joint, the fastigium depressed, rather deeply sulcate, 

 separated from the frontal costa.by a roundly elevated portion of the latter; frontal costa prominent 

 above the ocellus, less so below, broadest between the antenna?, not sulcate, the surface moderately 

 closely and coarsely punctate, the pits infuscated ; antennae filiform, not quite as long as the head and 

 pronotum taken together. Pronotum rounded above, considerably expanding from front to rear, the 

 transverse sulci continuous, the hind one the most profound ; the median carina only apparent by the 

 slight interruption of the punctures anteriorly ; the anterior edge strongly margined and somewhat sinuose, 

 its middle a little advanced upon the occiput, hind margin also sinuose, mesially arcuate-emarginate. 

 Tegmina lateral, sublinear, five or six times as long as broad, reaching nearly or quite to the hind margin 

 of the first abdominal segment, the background fuscous, the veins testaceous. Auditory apparatus 

 present, of moderate size. Hind femora about reaching the tip of the abdomen. Yalves of the ovipositor 

 not exserted, slender, the upper pair rather strongly hooked, the lower pair but little hooked and furnished 

 with a prominent basal tooth. Prosternal spine rather short and coarse, transverse. 



