340 On Aquatic Carnivorous Coleoptera or Dytiscide. 
I. 21.—Genus DESMOPACHRIA. 
Front coxze almost reaching the front border of the prosternum ; prosternal 
process minute, rhomboidal, about as broad as long, its extremity sharply angulate ; 
intercoxal process of metasternum connected with the mesosternal fork ; hind tibize 
straight, their basal portion not conspicuously narrower than the apical one. 
Thirteen species are included in this genus ; they are insects of peculiarly broad 
short form, the breadth being nearly as great as the length. Nearly all the species 
are at present rarely represented in our collections ; they are peculiar to the New 
World. 
229. Desmopachria suturalis, n. sp.—Brevis, lata, subrotundata, sat convexa 
ferruginea, crebre sat fortiter punctata, elytris stria suturali distincta ; prothorace 
basi utrinque sinuato, angulis posterioribus acutis. Long. 25, lat. 2 m.m. 
The head is rather narrow, the clypeus in front somewhat produced, the surface 
finely and moderately closely punctured. The thorax is distinctly punctured, the 
punctures along the whole breath of the basal portion being dense. The elytra are 
distinctly and closely punctured, and along the basal portion of the suture are 
marked by a stria formed by elongate punctures. The hind coxee, except in their 
hinder portion, are rather coarsely punctured ; the metasternum is impunctate. 
Brazil, (Santa Rita, August 1850, Sahlberg). 52. 
230. Desmopachria ovalis, n. sp.—Brevis, lata, subrotundata, convexa, 
ferruginea, crebre sat fortiter punctata ; prothorace basi utrinque leviter sinuato. 
Long. 23, lat. 13 m.m. 
Closely allied to D. suturalis, but only half the size, rather more convex, with 
the front and middle tarsi much less elongate, but stouter, and with no sutural 
stria on the elytra ; the sinuation of the base of the thorax near the hind angles is 
less distinct. 
Brazil, (Santa Rita, August 1850, Sahlberg). 53. 
231. Desmopachria concolor, n. sp.—Brevis, lata, subrotundata, sat convexa, 
ferruginea, crebre vix fortiter punctata, prothorace basi utrinque leviter sinuato. 
Long. 2%, lat. 13 m.m. 
Very closely allied to Desmopachria ovalis but slightly broader and less convex, 
less acuminate behind, and with the punctuation of the elytra rather finer, and the 
posterior tarsi rather longer. 
South America, (Uruguay). 56. 
