232 PROCEEDINGS OF THE ACADEMY OF [Julie, 



Hoplosphyrmm aztecum (Saussure). 



1897. Ectatoderus aztecus Saussure, Biol. Cent. Amer., Orth., I, p. 230, 

 pi. XI, figs. 35, 36. [Chilpancingo, Guerrero, Mexico, 4,000 feet.] 



1905. Ectatoderus aztecus Baker, Invertebr. Pacif., I, p. 79. [Acapulco, 

 Guerrero, Mexico.] 



As far- as can be determined from the description, this species can 

 be readily separated from the other species of this genus, to which it 

 undoubtedly belongs, by the ovate terminal palpal joint. 



Type: d 71 ; Chilpancingo, Guerrero, Mexico, elevation 4,600 feet. 

 (H. H. Smith.) [Biologia Collection in British Museum.] 



Description of Type.—" Somewhat thickened, fuscous. Head 

 suborbicular, lightly convex, a fulvous obsolete transverse facial 

 line and an irregular fulvous line on each side above the eyes. Anten- 

 nae fuscous, bases paler. Eyes broadly elliptical or subovoid, hardly 

 attenuate above, internal margin above very subtlely incised. 

 Terminal palpal joint a little broader, ovate. Pronotum as long as 

 wide, deplanate, anteriorly not strongly coarctate; anterior margin 

 sinuate, posterior transverse, scarcely arcuate; upper part seen from 

 above castaneous, broadly flavo-fulvous on the margins of both sides, 

 lateral lobes black. Disk marked above on both sides with two 

 crassate black puncta and on each side between these an intercalate 

 pyriform depression, showing exteriorly acute elevated margins. 

 Elytra parallel on dorsum, leaving the apex of the abdomen exposed, 

 shaded with dull testaceous and fuscous lines, posterior margin 

 arcuate; regularly vittate with fuscous at the margin. Speculum 

 much broader than long, with elevated lines, the anterior angle 

 right- or obtuse-angulate; anal rami three. Lateral field very 

 wide, luteous, with two to three longitudinal fuscous lines, the second 

 the widest; inferior margin angulate before the middle. Feet 

 compressed; anterior and intermediate fuscous, coxae, knees and 

 tarsal articulations testaceous; metatarsi moderately long. Pos- 

 terior femora heavy, fusco-testaceous, apically fuscous. Posterior 

 tibiae moderately broad, fusco-rufescent, apically more fuscous, 

 above broadly canaliculate, the margins heavily denticulate. Internal 

 intermediate spur fairly elongate; upper minute. Tarsi fuscous; 

 posterior metatarsus elongate, above armed with many teeth. 

 Abdomen brownish-black, beneath fusco-testaceous. Cerci rather 

 long, rufous, bases thickened. Last dorsal segment narrow, testa- 

 ceous. Supra-anal plate elongate-trigonal, apex rounded. Sub- 

 genital plate transverse, margin subarcuate, black. 



"d\ Length of body 6.8; pronotum 2.2, width 3; elytra beyond 

 pronotum 2.7, width 3.2; posterior femur 4.8 millimeters." 



