Horn.] 578 [April 19, 
This discussion leads me to speak of Anommatus, a genus 
not yet represented in our country, and which has been as- 
sociated with Aglenus, but removed by Duval to the Latx- 
Rip1ip#. The latter determination appears to have been 
based on the mobility of the abdominal segments, and con- 
sidering the present constitution of that family, as shown by 
the Munich Catalogue, Duval’s idea at that time was not far 
wrong, the only wonder being that more genera did not get 
there. A comparison of Aglenus and Anommatus, indicates 
that they cannot be remotely separated, notwithstanding the 
fact that the abdomen is more mobile, and the tarsi three- 
jointed in the latter, their general similarity of structure, and 
the open anterior coxse seem to have more weight in de- 
termining their association than any other characters have 
in separating them. The structure of the anterior coxee and 
the form and narrowness of the sternum of Anommatus 
greatly resemble Deretaphrus, except that the latter has the 
coxal cavities closed behind while in the former: they are 
open. 
One species of Aglenus occurs in our fauna, probably in- 
troduced. 
A. brunneus Gyll. (Hypophicus) Ins. Suece. III, p.'711; Duval Gen. 
Col. Eur. II, pl. 46, fig. 226; Anommatus obsoletus Shuck. Brit. Col. Delin. 
pl. 33, fig. 2. 
Elongate-oval, brownish, shining, surface very sparsely punctate. Thorax 
very little longer than wide, sides feebly arcuate, margin very narrow. 
Elytra oval, emarginate at base, humeri rectangular. Body beneath 
sparsely punctured, rather more densely on the abdomen, and more coarsely 
than the upper surface. Length .06 inch ; 1.5 mm. 
This species has occurred in our territory only at St. Louis, 
Mo., whence specimens have been sent me by Mr. Maurice 
Schuster. 
Tribe lV. DERETAPHRINI. 
\ 
Antenne capitate, retractile, base free. Head deflexed, vertex convex, 
mouth inferior. Anterior coxze globular, more prominent than the pros- 
ternum which is deeply depressed between them, contiguous or feebly 
separated, the cavities closed behind. Middle cox moderately separated, 
very closely approximated in Ozvylemus. Posterior coxe at least moder- 
ately separated. Metasternal side pieces narrow. Abdomen with first 
