704 STA PHYLINIDA. 
forwards), the sides also depressed, shining, the basal portion finely punctate. Elytra 
nearly twice as long as the thorax, closely and finely punctate, shining. Tarsi very 
minute. Three examples. 
The tarsi in this elegant insect are very short, and so slender that without a good 
lens they are not perceptible; in our figure they appear too large. 
PAROSUS. 
Corpus depressum, punctatum. Mandibule porrecte, curvate. Labrum in medio profunde emarginatum, 
utrinque denticulatum. Abdomen alte marginatum. Tibie mutica. 
In facies this new genus is intermediate between Charhyphus and Eleusis; the 
structure of the labrum is, however, very peculiar and will allow Parosus to be readily 
recognized. ‘The clypeus is sinuate on either side so that the middle is prominent, and 
the labrum very exposed ; the latter is small, armed with two widely separated denticles 
and between these emarginate. ‘The antenne are 11-jointed, rather short, and inserted 
at the sides of the head in front of, and rather near to, the eyes. The terminal joint 
of the maxillary palpus is slender and subulate, the preceding joint rather large. The 
prosternum is rather short, the coxe only very slightly exserted; the latter are rather 
widely separated from the lateral margin, and the side-piece of the prosternum gives 
off no distinct process behind them, and there is no external transverse fissure. The 
middle cox are moderately large, contiguous; the internal lamine of the hind coxe 
rather small; the trochanters quite small. The legs are slender; the tibie long, 
slender, unarmed; the tarsi three-jointed, the two basal joints quite small, the terminal 
joint long and slender. 
Although the single species I include in this genus apparently has an affinity with 
Eleusis and the anterior coxee when seen from the front appear very short, yet the 
structure of the prosternum and other characters locate the insect near Oxytelus and 
Trogophleus. Itis possible that the North-American genus Zriga, Fauv., may be allied 
to Parosus, though from the description I can say the two are not identical. 
1. Parosus hilaris. (Tab. XIX. fig. 1.) 
Rufo-testaceus, capite, abdomine ante apicem elytrisque nigricantibus, his humeris late rufis; capite majore, 
dense fortiterque punctato ; prothorace basi lateribusque rotundatis. 
Long. 33 millim. 
Hab. Panama, Volcan de Chiriqui 2500 to 4000 feet (Champion). 
Antenne short, the first joint nearly equal to the three following joints together ; the 
third joint smaller than the second, the penultimate joints not so long as broad. Head 
very large, very coarsely and densely punctured. ‘Thorax short; sides greatly rounded 
and narrowed behind, so that there are no hind angles and the narrow truncate base is 
but little differentiated from the sides; rather coarsely and closely punctured, with a 
smooth space along the middle. Elytra longer than the thorax, rather closely and 
finely punctate. Hind body feebly pubescent, almost impunctate. Two examples. 
