FIELD NATURALISTS' CLUB 195 



Examined by transmitted light, it is seen thai the blackish spots in the 

 midale of the brown patches are opaque, the ochreous portions semi- 

 opaque, and the brown patches and dots semi-transparent. Derm not reti- 

 culate, orange brown, with numerous large gland-pits, and oval or cir- 

 cular large recticulated patches, as in the Brazilian L. monile, Ckll. ined. 



Anal plates ordinary, anterior external side ionger than posterior 

 external side. Margin with very small spines. 



Lateral incisions with strongly thickened edges, and short stout 

 blunt spines, which sometimes show a tendency to be bifid. 



Immature females are flatter, and more or less covered by a thin glassy 

 or waxy secretion 



Hab. on Citrus, Grenada, as above cited. Mixed with them 

 are larvae of some Orthezia. 



The specimens had been attacked by a predaceous lepidop- 

 terous larva, in consequence of which I had only shells to study, 

 with no legs or antennae. Yet I have no doubt that the species is 

 easily recognisable from the details given. It is, in fact a very 

 remarkable little form, belonging to a neotropical series which 

 consist of several species known to me, but mostly unpublished at 

 the time of writing. Out of the neo-tropical region, it seems 

 allied most nearly to the Australian L. scrobiculatum, Maskell. 



A NEW MEALY-BUG ON SUGAR CANE. 



By T. D. A. Cockerell, New Mexico Agricultural Exper. Station. 



I HAVE received the following new species from Mr. Urich, who 

 found it in St. Ann's, Trinidad, under the leaf-axils of sugar- 

 cane, not numerous and apparently not seriously harmful. 



Dactylopius sacchari, n. sp. 



Female (in alcohol) pale olivaceous or pinkish, sparsely mealy, 

 plump, length 4, breadth 2 mm., segmentation distinct. 



Antennae 7-jointed, sometimes seeming 6-jointed from the obscurity 

 of the joint between 2 and 3. Joint 7 much longest ; 3, 4, 5, 6, shortest 

 and subequal. 2 distinctly longer than 3. 7 a little longer than 44-5. 

 Joints with sparse whorls of hairs. 



Ant snnae pale brown, small. Leys small. Trochanter with 3 bristles; 

 a very long hair at its tip, and a short spine behind. Femur not swollen, 

 longer than tibia. Tarsus about 2-3 length of tibia. Femur and tibia with 

 only a few bristles. Claw large, curved, without any denticle on inner side. 

 Digitules of claw filiform. Tarsal digitules ordinary. 



Posterior tubercles not noticeable. Mentum dimerous. Anogenital 

 ring with 6 hairs. 



When I received this I expected it would prove to be D. 

 calceolaria, Maskell, but it is clearly different. The D. calceola- 

 ricB found on sugar-cane in Jamaica had 8 -joined antennae ; it 

 was pale brown, becoming crimson in caustic soda. At the ,-;wi\<- 

 tini". Mr. Urich sent me Phenacoceus yuccce var. barberi, Ckll. 

 ined., on orange at St. Ann's, new to Trinidad. This variety, 



raised by iis pale log; and antenna', was discovered by Mr. 

 Barber in Antigua and St. Ivitts. The typical form of the 

 species is common in Mexico. 



