arr. 8. BUPRESTID BEETLES OF MEXICO—FISHER. rf 
from the United States, 62 from Mexico and Central America, and 
the remainder from South America. 
Pachyschelus cyaneus (Gory), described from Brazilt and recorded 
by Waterhouse,? from Teapa, Mexico; San Juan and El Tumador, 
Guatemala; Taboga Island, Panama; and Cayenne, Guiana, and also 
Pachyschelus robustus described by Waterhouse from San Geronimo, 
Guatemala,? have been omitted from the key, as it has been impossible 
to correlate the characters given in the original descriptions with those 
used in the key. 
Mr. Waterhouse states‘ ‘‘that the structure of the apex of the ab- 
domen of the males appears to afford good specific characters, and 
finds that the arrangement and form of the teeth are constant.” 
Throughout the genus he uses this character in describing the males, 
and on plate & figures the terminal part of the abdomen of the males 
of 24 species. Nicolay and Weiss in their paper on The Genera 
Pachyschelus and Taphrocerus® have followed Waterhouse in the use 
of this sexual character as applied to the males. 
KEY TO THE SPECIES. 
1. Elytra distinctly pubescent, or with pubescent spots............-...------ 2 
Elytra glabrous, or with only a few obsolete hairs arising from the punctures.. 29 
Pe RORY UALS IS PCCIC ete. meas ce Actes ca terns cate b ess aeons ae aimee bese 3 
WOU CCIOReS a renee Rone CRU Mt ees MUR ER CRS SAee tt epee eames sot ce tese 8 
SD veoUiarly Valetta nee tease Cece eee eet a atecce tw ssaccetasse seas tact) 4 
Not regularly oval, more acuminate posteriorly................-:..-.-.---- 6 
4, Elytra cupreous or aeneous, with a purplish or greenish tinge, rather densely 
pubescent, with a small dark lunate spot on disk, and a less distinct, broadly 
aregate One at Apical GaitGe c+ s+ occas tres bacee coe fe rotundipennis Fisher. 
Blvird OlaGke ccc. os. cece eet ne eer nas oe week ace e ages re Ameen sae i) 
5. Elytra with a violaceous or bluish-green tinge, and sparsely pubescent, the 
pubescence arranged in irregular longitudinal rows ....-.--.- atroviridis Fisher. 
Elytra densely clothed with cinereous pubescence, except a large lunate spot 
(common to both elytron), where the pubescence is black.. lunifer Waterhouse. 
6. Surface above bicolored; head and pronotum aureous; elytra violaceous, and 
very sparsely, irregularly pubescent......................-. festivus Fisher. 
SRlPTAe ny OUI OLOEDU nec oo ces clase oleae ceo mp a mele das 5> sag) miei d nee ele ate 7 
7. Elytra black, with a slight coppery-purple tinge along sides, shining and clothed 
with cinereous pubescence, except for a large round spot, common to both 
SLAY] RE 1 ee Le peatataats eshte agenda ep Semper y- cinctus Waterhouse. 
Elytra black, with lateral margins narrowly violaceous, subopaque, and rather 
densely clothed with cinereous pubescence, the pubescence forming irregular 
(1): 51 Cleon repens te oie ei eile Beret sii ements ee tos pilosus Fisher. 
8. Elytra attenuate from base to apex . ae ee eet ee eer esses es cccces | OC 
Elytra with sides parallel to basal ae or te! wider at middle of elytra than 
St Desc meen aLlienuate LO tnO AplX.6. so cesn se nseeees cise erence cece. LD 
1Mon. Bupr. Suppl., vol. 4, 1841, p. 344, pl. 58. fig. 340. 
1 Biol. Centr.-Amer., Coleopt., vol. 3, pt. 1, 1889, p. 145. 
3Idem, pp. 142-143. 
4Idem, p. 137. 
‘Journ. N. Y. Ent. Soc., vol. 28, 1920, pp. 137-142. 
60466—23—Proc.N.M.vol.62— 24 
