DIASPIS.—CHLAMYS. 155 
DIASPSIS (p. 74). 
The opinion -expressed by myself that the presence of a second scutellum in this . 
genus might be due to the imperfect closing of that part of the elytra is erroneous ; 
it is certain, however, that the second scutellum is not always so plainly visible as in 
the case of D. paradoxus, and that it is sometimes represented by a very narrow ridge. 
Diaspis mestifica (p. 75). 
To the Mexican localities given, add :—Acapulco in Guerrero, Huetamo in Michoacan 
(Hoge). 
The Mexican specimens I refer to this species have two very distinct scutella ; they 
are of an obscure dark eneous colour and devoid of the dark velvet-like discoidal mark 
mentioned by the author; the elytra have the tubercles nearly all isolated, and they 
are distributed as follows—one at the middle of the base, three placed in an oblique 
line from the shoulder to the suture, four near the latter towards the apex, and three 
or four others near the lateral margin, the interstices being very finely strigose, and 
having some deep, remotely placed punctures; the form of the thorax agrees with the 
description given by Lacordaire. 
Diaspis memnonia (p. 75). 
To the Mexican localities given, add:—Northern Sonora (Morrison), Acapulco 
(Hoge), Omilteme in Guerrero (H. H. Smith), Juquila (Saldé). 
The second scutellum in D. memnonia is very narrow and sometimes only just visible ; 
‘there are some true species of Chlamys found in Mexico and Guatemala which almost 
exactly resemble the present one, but differ in having red tarsi. The Guatemalan 
locality Zapote given for D. memnonia on page 79 is erroneous, and refers to the species 
of Chlamys (C. punctipennis) mentioned above. JD. memnonia is a broader and poste- 
riorly less narrowed insect than D. mestifica, and has not so many tubercles on the 
elytra; the latter have an elevated irregular ridge running from the shoulder nearly to 
the suture, and then extending upwards to the base, this ridge surrounding a distinct 
blackish space. The specimens from Sonora do not seem to differ from those obtained 
at the other localities, and were received from Morrison under the name of Chlamys 
polycocca ; they certainly agree very nearly with Lacordaire’s description of that species, 
but the double scutellum and the different and more tuberculate structure of the thorax 
readily distinguish .C. polycocca from D. memnonia. 
CHLAMYS (p. 75). 
1 (4). Chlamys godmani. (Tab. XXXIX. fig. 16.) 
Head (the vertex excepted), the antenne, legs, and underside ferruginous; above finely pubescent ; thorax. 
x2 
