new and Ilttle-known American (yocciilte. 157 



Ceroplastes cistudiformis, Ckll. & Towns., var. 



Tonila, Jalisco, Mexico, oa plant like Farthenium, Aug. 3 

 (Townsend). 



Possibly a distinct species, but there is only one adult 

 female. Closely allied is C. variegatuSj Hempel. Tiiese 

 species have a distinct dorsal hump. 



Ceroplastes irregular is , Ckll. 

 El Paso, Texas, on Atriplex, May 26 [Tow risen J). 



Ceroplastes roseatus, Towns. & Ckll., var. /3. 



? . — Scales 8 millim. long, 7 broad, 5 high, dull yellowish 

 white with a rosy tint, with two chalky spots on each lateral 

 margin, but no lines; apex pointed as describad by Dolby- 

 Tyler ; denuded female very dark, hemispherical, length (not 

 counting horn) 5 millim., breadth 4^, height 3^. Caudal 

 horn sharp, directed backwards and slightly upwards ; back 

 rounded, with only a small obtuse prominence, lateral nuclear 

 prominences small. 



Skin after boiling ferruginous, with very numerous round 

 to suboval gland-orilices, about 10 /j, diameter, and minutely 

 reticulated patches as in allied species. Diameter of mouth- 

 parts 150 /x. Caudal horn conical, about 1450 /m long and 

 1000 broad at base, very dark coloured. Margin with short 

 broad spines about 12 /j, long. Legs with femur + trochanter 

 210 /t (width of femur 57), tibia 129, tarsus 87. Antenna 

 about 330 fi long, 7-jointed, with a long 4:th joint ; joint 2 

 short, 3 about 48 /a, 4 about 105, 5 is 24-27, 6 is 24, and 

 7 is 40-48 /x. 



Hah. Base of Volcan de Colima, Mexico, on stems of a tail 

 herbaceous composite, Aug. 3, alt. about 7000 feet {Townsend). 



Ceroplastes brachyurus, sp. n. 



$ . — Scale convex, long. 2|, lat. 2f, alt. 2 millim. ; irre- 

 gular, witii rounded prominences; wax dull white, stained 

 with pink at the sides ; two very conspicuous lines of chalk- 

 white secretion on each side, close together. The lateral 

 margins are swollen and the dorsal nucleus is more or less 

 depressed. Denuded female, long. 2|, lat. 2, alt. 1| millim., 

 rounded, very convex, vtry shiny, ferruginous; caudal horn 

 extremely sniall; a small but distinct dorsal knob. Skin after 

 boiling brownish, semitransparent, mostly free from glands ; 

 antenna? about 160 /i long, 7-jointed, with a long 4th joint; 

 Ann. d- Sfaq. N. Hist. Ser. 7. Vol. xi. 12 



