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LAWRENCE S. DILLON AND ELIZABETH S. DILLON 175
of scape, sinuate or nearly straight; fourth lind fifth successively shorter, rest sub­
equal; eleventh slightly longer than tenth in male.
GEN01'YPE : Hypselo1nus pupillatus Pascoe, designated as j j typical
species " by Bates, Biologia Centr.-Amer., 1880, p. l22.
KEY TO SPECIES
1. Elyira without a lllrger dark macula behind middle of cach disk . . . . . . . . . mydas.
Elytra with one or more larger dark maculae just behind middle of cach disk . . 2
2. Elytra each with two central maculae placed transversely ............. tetrops
Elytra. each with only one macula behind middle . . . . . . . . . .. . . . ... . . .. . .. . . 3
3. Elytra! humeri each with two tubercles ................................. .4
Elytral humeri each with II single tubercle placed at the angle . .. . . . . . . ... . . 5
4. Elytrnl dnrk central macula preceded by a very small pale spot; antennae lle3rly
approximate at base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pupillata
Elytral dark macula preceded by II pale spot which nearly equals it in size;
antennae distinctly separated at base . . . . . . . . ........ . . . . . .. . .. . . . . orbis
5. Elytra! median dark macula V-shaped ................................ coeca
Elytra! median dark macula llot V-shaped ................................ O
6. Elytral median dark macula large, more than one-half width of disk, preceded by
II broad, dense, whitish margin which extends anteriorly to basal quarter
/uneraria
Elytral median dark macula. about one-fourth to one-third width of disk, pre-
ceded by II pale yellowish-gray maculll subequal to it in size ............ 7
7. Elytral dark central macula preceded by 3. pale yellowish margin nearly equal to
it ill length; scutellum more elongate .............................. pi:x:e
Elytrnl dark central macula. preceded by a. small, rounded, pale fulvous spot
about one-half its own si1,ci scutellum strongly trallsverse ........... wnthe
Tyhahnia pupillata Pascoe
PLATE VII, FIGURE 11.
Hypselomua pupillatus Pascoe, Trans. Ent. Soc. Lond., (2), v, 1859, p. 35.
Jamena pupiUata Pascoe. Bates, Ann. Mag. Nat. Bist., (3), xvt, 18W, p. 171
(Sep. p. 183).
Tybalmia pupiUata Pascoe. Thomson, Physis, II, 1868, p. 45. Lacordaire, Gen.
Col., IX, 1872, pI. 105, f. 1. Bates, BioI. Centr.-Amer., Col. v, 1880, p. 122.
Hypsioma bipunctata Jekel, Journ. EnL, I, 1861, p. 260.
Distinguished from all other Tybalmia by the antenna1 tubercles
being closely approximate, and by the pale macula before the central
discal dark spot of elytra being very minute. It agrees with
T. o.-bis in having two tubercles on each humerus.
MALE. Elongllte-ovate, rather robust, subcylindricali piceous or black. Head
dark brown pnbescent, beneath basally varied with fulvous-grny; front indistinctly