JAMES A. G. REHN 351 



Anaulacomera alfaroi new species (PI. XV'IIl, figs. 24, 25 and 26.) 



Apparently related to .4. maculata Brunner and lanceolata 

 Brunner, both from Bogota, Colombia, and A. securifera Brunner, 

 from central Peru. From all three of these the present species 

 differs in the peculiar form of th(^ male cerci, while from maculata 

 it also can be separated by its smaller size and the form of the 

 male anal segment and of the subgenital plate of the same sex; 

 fiom lanceolata by the subequal lateral lobes of the pronotum and 

 the rounded distal margin of the lateral sections of the male sub- 

 genital plate; from .securifera by the more rectangulate, though 

 rounded, insertion of the lateral lobes of the pronotum, the spines 

 on the ventral femoral margins, the form of the male supra-anal 

 plate and the form of the distal margin of the subgenital plate 

 of the same sex. 



Type. — cf ; Orotina, Costa Rica. October 11, 1915. (Anas- 

 tasio Alfaro.) [Academy of Natural Sciences of Philadelphia, 

 Type no. 5350.] 



Size small: form moderately compressed and elongate: surface dull, of limbs 

 more shining, tegmina semitransi)arent in the areolets. 



Head short, transverse, greatest depth of head ecjual to one and one-third 

 times the greatest width across the eyes: occiput in profile weakly arcuate, 

 gently declivent; fastigium relatively narrow, strongly compressed mesad, 

 slightly broadened distad, the apex when seen from the dorsum truncate, 

 dorsal surface with a distinct but short medio-longitudinal sulcus; facial fasti- 

 gium not in contact with the fastigium of the vertex, strongly acute in general 

 form, the immediate apex narrowly rounded: facial line very faintly arcuate 

 when seen from the side: palpi very slender and elongate, third joint faintly 

 more than one and one-half times as long as the fourth; fifth joint twice as long 

 as the third, unusually slender, with the extremity moderately but distinctly 

 inflated and thickened: eyes very prominent, sul)globose, basal outline of eye 

 nearly circular, greatest depth of eye contained slightly more than one and 

 one-half times in the greatest depth of the infra-ocular portion of the genae: 

 antennae considerably surpassing the tegmina in length. 



Pronotum narrow, moderately elongate, the disk subequal, its greatest 

 width (measured caudad) contained faintly more than one and one-half times 

 in the greatest length of the same, deplanate, rounding into the lateral lobes, 

 an angle very faintly intimated cephalad; cephalic margin of disk very broadly 

 obtuse-angulate emarginate, caudal margin of disk broadly arcuate; surface of 

 disk with a finely impressed medio-longitudinal line, also a well indicated, bisig- 

 moid, median, transverse, impressed figure: lateral lobes with greatest depth 

 and greatest dorsal length subequal; cephalic margin of lobes sigmoid, ventro- 

 cophalic angle rounded obtuse, ventral margin short, oblique, nearly straight, 



TU.\XS. AM. ENT. SOC, XLIV. 



