NO. 1124. BKVISION OF THE MELAyoi'LI—fiCrDliEU. 173 



the male; fastijyiuinriitliei steeply declivent, distinetly (male) or slial- 

 lowly (female) an<l broadly suleate; frontal costa rather promineut, ])er- 

 current or almost pennirrent, equal, as broad as (female) or sli<^btly 

 broader than (male) the iiitei-spaee between the eyes, biseriately punc- 

 tate throughout, slightly depressed at and Just below the oeellus; eyes 

 moderately hirge, prominent espeeially in the male, much longer than 

 theinfraoculari)ortion of the genae; antennae fulvous, basallyluteseent, 

 four-tifths (male) or less than three fifths (female) as lung as the hi»id 

 femora. Pronotum subeipial but for the gently flaring metazona, more 

 or less infuseated, sometimes punc tate or strigose with fuscous, with a 

 generally distinct postocular piceous band on the hiteral lobes of the 

 pro/.ona. the disk very broadly convex and i)assing into the subvertical 

 lateral lobes by a broadly rounded but distinct siiouldei-. occasionally 

 angulate on the metazona; med'an carina distinct on the metazona, 

 feeble on the prozona, nearly always (especially in the male) subobsolete 

 between the sulci: fnmt margin truncate or subtruncate, hind margin 

 obtusangulate, the angle little rounded; prozona feebly longitudinal or 

 rarely ([uad rate (male) or more or less distinctly transverse (female), gen- 

 erally and especially in the male a little longer than the finely ])unctate 

 metazona. Prosternal spine moderately long, erect. <*ylindrical, blunt, 

 in the female tapering a little as seen from the front; inters})ace 

 between mesosternal l(>be> twice as long as Inoad (niale) or a little 

 longer than broad (female). Teg?nina reaching or somewhat surpass- 

 ing the tips of the hind femora, rather slender, tapering with some 

 distinctness, apically nairow, brownish fuscous, apically fusco-hyaline, 

 the middle third or mo)e of the discoidal area more or less feeblv and 

 rather minutely flecked with fuscous; wings moderately broad, hyaline, 

 with blackish fuscous veins. Fore and middle femora of male iKtt very 

 tumid (the middle more than the fore femora), the hind femora flavo- 

 testaceoiis, very obliquely and rather broadly bifasciate with fuscous, 

 which sometimes suffuses nearly the whole upper half, the lower face 

 sometimes very feebly roseate, the genicular arc black, the lower 

 genicular lobe usually pallid throughout; hind tibiae pale glaucous, 

 rarely red, the spines black nearly to their base, ten to twelve in num- 

 ber in the outer series. Hxtremity of male abdomen feebly clavate, 

 gently recurved, the supraanal plate triangular witli feebly convex 

 lateral margins, subrectangulate apex, and a narrow percurrent median 

 sulcus between rather high and sharj) walls; furcula consisting of a 

 pair of feebly divergent, slender, tapering and acuminate, slightly 

 depressed spines about a fourth the length of the supraanal plate; 

 cerci rather small, a little more than tivice as long as broad, gently 

 tapering and externally a little tumid in the basal half, beyond subetpial, 

 v^'ompresbcd or subsulcate, gently upturned, ai>ically subtruncate or 

 broadly rounded; subgenital plate very slightly elevated apically, the 

 margin feebly notched. 

 Length of body, male, 18 mm., female, 22 mm.; antennae, male, 8.2."> 



