1905.] NATURAL SCIENCES OF PHILADELPHIA. 421 



Annioeris truncatus n. sp. 



Type: ? ; Tarbaca, Costa Rica. November, 1902. (C. F. Under- 

 wood.) [A. N. S. Phila.] 



Allied to A. geniculatus Stal from Peru and A. olivoxeus Giglio-Tos 

 from Darien; differing from the former in the horizontal fastigium, the 

 uncarinate vertex and the rather different coloration; differing from 

 the latter in the moderately distinct lateral carinse of the face and the 

 more subdned color pattern. 



Fig. 21. — Anniceris truncatus n. sp. Lateral view of tj'pe. 



Size small ; form slightly compressed ; sm'f ace rugulose. Head with 

 the occiput and vertex gently rounded, descending easily to the base 

 of the fastigium ; interocular region narrow, slightly more than half the 

 apical width of the fastigium; fastigium broad at the base, tapering 

 evenly with a truncate apex, apical width about twice the length, dor- 

 sal surface slightly excavate near the cingulate margin; frontal costa 

 not distinct below the insertion of the antennte, very slightly sulcate; 

 face slightly retreating when viewed laterad ; lateral ocelli inserted in 

 the supraantennal margin of the base of the fastigium, median below 

 the insertion of the antennae and slightly above the base of the fastigial 

 process ; eyes subrenif orm, moderately prominent, slightly longer than 

 the infraocular portion of the gense; antennae missing. Pronotum 

 rotundato-deplanate dorsad ; median carinas very weak, more apparent 

 caudad than cephalad ; lateral carinse not present, but distinct shoul- 

 ders on the metazona represent them; cephalic margin faintly arcuate; 

 caudal margin subtruncate; transverse sulci three in nmnber, the 

 cephaUc and caudal more apparent than the median, prozona almost 

 half again as long as the metazona ; lateral lobes of the pronotum dis- 

 tinctly deeper than long,, cephalic margin slightly sinuate, ventral mar- 

 gin emarginate cephalad, rotundate caudad, caudal margin very slightly 

 and broadly emarginate for its whole length, a slight ventro-caudal 

 angle developed above the level of the ventral margin. Tegmina ovate- 

 lanceolate, slightly longer than the pronotum, breadth contained twice 



