392 HETEROMERA. 
6. Lobopoda mexicana. (Tab. XVII. figg. 5, 5a, 3.) 
Moderately elongate, black or brownish-piceous, rather dull, somewhat thickly pubescent. Head with scattered 
rather coarse punctures; eyes large and approximate in the male, considerably smaller and comparatively 
widely separated in the female; prothorax sparsely and somewhat finely punctured, the disc obsoletely 
canaliculate, and very shallowly transversely impressed before the base, the basal fovew shallow, the hind 
angles more or less rectangular; elytra moderately long, narrowing very gradually from a little below the 
base, comparatively broad behind, the apices feebly (in some examples very distinctly) mucronate in the 
female and somewhat broadly rounded in the male, with moderately deep and closely punctured strie, 
the interstices very feebly convex, a little more strongly so at the apex, and moderately coarsely and 
somewhat closely punctured; beneath sparsely and moderately coarsely punctured, the metasternum in 
the middle behind closely so in the male; legs piceous or dark ferruginous, the tarsi lighter; antenne 
ferruginous. 
3. Anterior tibie on the inner side widened from near the base and thence to the apex sinuous. The lateral 
lobes of the last ventral segment long and twisted, somewhat spoon-shaped and curved towards the apex, 
widened and subangularly raised on each side inwardly and outwardly (between which is a deep groove) 
towards the base, the inner edges very finely serrate within; the central sheath very broad, the apical 
portion setose beneath, spoon-shaped, and recurved, the sheath itself armed just behind the spoon-shaped 
piece with two transversely placed rounded promirences above. (Fig. 5a.) 
Length 11-183 millim.; breadth 4-42 millim. (¢ 9.) 
Hab. Mexico (coll. F. Bates), Presidio (Forrer), Santecomapan, ‘Tuxtla, Cordova 
(Sallé), Jalapa, Frontera in Tabasco (Hége), Temax in N. Yucatan (Gawmer); Britisu 
Honpvuras, Belize (Blancaneaux); GuateMaLa, San Gerdnimo, Zapote (Champion). 
Found in great abundance in Yucatan, and also at Jalapa and elsewhere in Mexico, 
but becoming much rarer southwards. ‘This insect resembles LZ. éristis, but is smaller, 
and also differs as follows:—The thorax is more finely punctured, and the hind angles 
are rectangular and less acute; the elytral interstices are flatter and more finely punc- 
tured; the metasternum is more closely punctured in the male, and the upper surface 
is less shining and more thickly pubescent. The cedeagus of the male is very similar 
in structure; the lateral lobes of the last ventral segment are, however, more rounded 
(and less truncate) at the apex, and more curved. . 
In some female examples the apices of the elytra are sharply mucronate, in others 
only feebly so, 
Labelled L. sparsepunctata, Deyr., in the Sallé collection. 
The North-American Allecula punctulata (Melsh.) is an ally of L. mexicana; it is. 
known from as far south as Laredo in Texas, just beyond our northern boundary. 
tt Anterior tarsi in the male with the basal four joints lobed beneath. 
7. Lobopoda panamensis. (Tab. XVII. figg. 6, 6a, ¢.) 
Elongate, rather broad, piceous-black, the elytra dark castaneous, shining, very sparsely pubescent. Head 
with scattered, rather coarse, punctures; eyes very large and approximate in the male, smaller and 
moderately widely separated in the female; prothorax sparsely but comparatively coarsely punctured, the 
disc very shallowly canaliculate, with a rounded impression on each side about the middle, and broadly 
transversely impressed before the base, the basal impression connecting the rather deep fover, the hind 
angles subrectangular; elytra long, broad towards the base, somewhat rapidly narrowing from a little 
below the shoulders, deeply striate, the stria closely punctate, the interstices convex, and with a row of 
