LARVAE OF SOME WEST INDIAN BEETLES—BOVING 175 
absent in both chaetopariae; right phobae extending almost to zygum ; 
Sens llanimefronGoOL cCLepis aDOUL Lol ee a 10 
Different arrangement of pali; number of heli less than 15_-_--___ alia 
10 (9). Proplegmata very numerous and fine, forming a pair of large, ovate 
proplegmatia; proplegmatia separated anteriorly by median, sub- 
triangular, posteriorly pointing acroparia (figs. 8, 9). 
Polyphylla occidentalis (Linnaeus) (Virginia) 
Proplegmata absent__-_Polyphylla crinita LeConte (Oregon, California) 
P. variolosa Hentz (Maine, New Jersey) 
P. decemlineata Say (Colorado) 
(perhaps) Granida albosparsa Moser (Punjab, India)” 
11 (9). Anterior margin of frons with about 3 long setae on each side; with 
anal slit. [Epizygum distinct, connected with zygum; number of 
heli about 6; chaetopariae without sensilla; 10 or less sensilla in 
front of crepis; pali 12 to 20 on each side, arranged in a Single, 
anteriorly longitudinal, posteriorly oblique series. ]—_-_---__-__-__--- ie 
Anterior margin of frons with usually more than three long setae on 
each side, or with a transverse patch of numerous setae; indistinct 
or no anal slit. [Chaetopariae with or without sensilla; region in 
front of crepis with or without sensilla, maxillary articulating skin 
with or without dark granules; pali straight or hooked; preseptular 
Selaey present: OL eapSenty| sete as ae ee eee 1+ 
12 (11). Proplegmata absent; without preseptular setae (according to Grandi). 
Rhizotrogus assimilis Herbst var. obscurus Brenske (Italy) 
Proplegmata numbering 10 to 15 to each side_____-_____- cites See eaetiree |e 
18 (12). Without preseptular setae. [Anterior 8 pali short and hooked. ] 
Rhizotrogus majalis (Razoumowsky) (France; introduced to Newark, N. Y.) 
With 10 or more preseptular setae (figs. 10-12). 
Rhizotrogus solstitialis (Linnaeus) (Europe) 
14 (11). Numerous round black spots on dorsal side of cardo, on coxae, posterior 
to the spiracles, and on other places.“ [Proplegmata absent ; sensilla 
absent in chaetopariae; sensilla in front of crepis numbering 29 
or more; number of heli about 9; mandibular dorsoexterior region 
without punctures and setae; pali short, straight, dagger shaped, 
about 20 on each side; number of preseptular setae about 5.] (Figs. 
GUS) See eS Ancylonycha mindanaona (Brenske) (Guam, Asia) 
Without black spots__________ Ancylonycha titanis (Reitter) (Korea) 
Brahmina coriacea Hope (India) ” 
Phyllophaga spp. (continental America) 
10 According to Gardner’s description. 
11 Similar black spots, not to be confused with “black granules,’ are present in the larvae 
‘of the species of Serica as first drawn, but not described, by Jozo Murayama (loc, cit., 
pl. 9, fig. 53, b) and also in the larvae of Oxycetonia jucundo Falderman (ibid., pl. 10, 
fig. 69, b). 
18 According to Gardner’s description. 
