NO. 1124. REVISION OF THE MELANOPLI SC UDDER. 241 



merely in terms of the abdominal appendages of the male; it is, there- 

 fore, not equivalent to Paroxya as I formerly denned it and as I here 

 still more closely distinguish it from the other genera. 



14. BOECKII SERIES. 



A homogeneous group in which the prozona of the male is distinctly 

 longitudinal and from a third to a half longer than the metazoua, the 

 posterior margin of the pronotum being subtruncate. The interspace 

 between the mesosternal lobes in the same sex varies from a little longer 

 than broad to twice as long as broad. The antennae vary considerably 

 in length, but generally differ but little between the two sexes. There 

 is also little diversity between the sexes in the prominence of the eyes. 

 The hind tibiae are dark blue, sometimes purplish, and have nine to 

 twelve spines in the outer series. 



The supraanal plate is triangular with acutangulate or rectangulate 

 apex; the furcula is reduced to mere projecting points; the cerci are 

 broad and swollen at the base, taper rapidly, and terminate in a slen- 

 der, produced, more or less curling finger; the supraanal plate is either 

 very narrow as compared to its length and then deeply hollowed apic- 

 ally, with a strongly sinuate lateral margin, or it is only a little longer 

 than broad with a nearly straight margin, the apical margin always 

 entire. 



There are six species, ranging from rather small to a little above the 

 medium size, and they are mainly confined to the Pacific coast from 

 Washington to California. But one of the species occurs also as far 

 inland as Idaho and Wyoming, and another is known from San Luis 

 Potosi, Mexico. 



60. MELANOPLUS PACIFICUS. 

 (Plate XVI, fig. 5.) 



rezotettix pacificm SCUDDEK!, Rep. U. S. Ent. Cornm., II (1881), App., pp. 24-25, pi. 

 xvii, fig. 16. BRUNER, ibid., Ill (1883), p. 59. 



Of medium or slightly less than medium size, ferrugineo-fuscous 

 above, flavo-testaceous beneath. Head scarcely prominent, flavo-tes- 

 taceous, heavily punctate with fuscous, above also faintly clouded with 

 fuscous, with a broad piceous postocular band; vertex gently tumid, a 

 little elevated above the pronotum, the interspace between the eyes 

 nearly half as broad again (male) or nearly twice as broad (female) as 

 the first antennal joint; fastigiurn rather steeply declivent, distinctly 

 (male) or feebly (female) sulcate throughout with weak anterior termi 

 nation; frontal costa subobsolete below, subequal, but above slightly 

 narrowed, about as broad as the interspace between the eyes, a little 

 sulcate at and sometimes a short distance below the ocellus, punctate 

 throughout; eyes moderate in size, not very prominent, scarcely more 

 so in the'male than in the female, a little longer than the infraocular 

 Proc. X. M. vol. xx 16 



