REHN AND HEBARD 163 



The characters separating A. hrevicauda and limifera from A. carita 

 are given under their respective headings. 



Tij-pe. — 9 ; Mesilla Park, Donna Ana County, New Mexico. 

 September 12. (Cockerell.) [Scudder Collection.] 



Descriplion of Type. — Size moderately large; form subcompressed. 

 Occiput moderately inflated, strongly declivent cephalad to the fastigium; 

 fastigium elongate, narrow, subequal, narrowly and not deeply sulcate 

 mesad, apex low and with its margin truncate, squarely in contact with that 

 of the fastigium of the face; eyes ovate, the greatest width contained one 

 and a half times in the depth, the latter appreciably surpassed by that of 

 the infra-ocular portion of the genae; antennae imperfect. '° Pronotum com- 

 pressed, sellate, the dorsal line when seen from the side slightly ascending 

 near the caudal margin and considerably ascending near the cephalic one; 

 disk slightly constricted mesad, the greatest caudal width of the disk slight- 

 ly more than half the length of the same, cephalic margin subtruncate, 

 caudal margin obtuse-angulate, transverse sulcus forming a V-shaped 

 figure slightly caudad of the middle of the disk, lateral portions of the disk 

 broadly rounding into the lateral lobes, a trace of a shoulder caudad; lateral 

 lobes with the greatest depth three-fourths the greatest dorsal length, ceph- 

 alic margin slightly oblique, sinuato-truncate, ventro-cephalic angle ro- 

 tundato-rectangulate, ventral margin sinuato-truncate, ventro-caudal 

 angle roundly obtuse-angulate, caudal margin oblique, gently arcuate, 

 humeral sinus very shallow, arcuato-emarginate. Tegmina abbreviate, 

 slightly more than one and one-half times as long as the pronotum, narrow, 

 the distal half subequal in width; lobate marginal field limited to proximal 

 half of the tegmina; apex of tegmina narrowly rounded. Wings reaching to 

 the tips of the tegmina but not surpassing the same.*^ Abdomen with 

 the dorsal margins multicrenulate, position of the usual pale lines indicated 

 by weakly strumose ridges ; disto-dorsal abdominal segment with the margin 

 subtruncate; supra-anal plate tongue-shaped, slightly longer than the prox- 

 imal width, with a moderately distinct medio-longitudinal sulcus on proxi- 

 mal section and adjacent portion of the distal abdominal segment; cerci 

 tapering, about twice the length of the supra-anal plate, apex blunt; oviposi- 

 tor about one and one-quarter times the length of the pronotum, arcuate, 

 slightly tapering, dorsal margins with distinct serrato-dentations for half 

 the length, ventral margins with similar recurved ones for about one-third 

 the length, crenulate mesad, surface of dorsal valves with three distinct 

 series of lamellate dentations, of ventral valves with a single series, all dis- 

 posed as usual in the genus; sub-genital plate transverse, trigonal, apex sub- 

 truncate. Femora with no dorso-distal genicular spiniform projections; 

 genicular lobes of cephalic and median femora bispinose, lobes of caudal 



*" In other females having these appendages more or less complete thej' 

 are seen to at least surpass the body in length. 



" The other females of the species seen have the wings very slightly sur- 

 passing the tegmina. 



TRANS. AM. ENT. SOC, XL. 



