C. L. Staines
3302 Decker Place
Edgewater MD 21037
Staines.Charles@NMNH.SI.EDU
6 May 1997
1. Elytra without costae or costae are vestigial; rows of punctures little impressed; antennae 11-segmented; larvae free living: 2
Elytra costate; rows of punctures strongly impressed; antennae 3- to 11-segmented; larvae leafminers: 5
2. Pronotum with a tuft of setae in each angle; very large (more than 25 mm.) species; elytral punctures random or with only vestiges of order: Alurnini, one genus: Alurnus
Pronotum with a single seta on 2 or 4 angles; smaller species (less than 15 mm.): 3
3. Pronotum with setae in posterior angles: Prosopodontini, one genus: Prosopodonta
Pronotum with setae in anterior angles: 4
4. Antennae not separated by a longitudinal keel; pro- and mesocoxae very large: Arescini, one genus: Chelobasis
Antennae separated by a longitudinal keel; coxae normal: Cephaloleiini
5. Antennae 10- or 11-segmented: 6
Antennae with less than 10-segments: Chalepini
6. Last 4 antennal segments different from others (either longer or shorter, thinner or thicker, more pubescent, different in color): Sceloenoplini
Last 5 antennal segments usually thickened but similar to others:
Chalepini
1. Mouth projecting forward and visible from above; labrum large, joins head by oblique angle; vertex falls off suddenly at neck; anterior margin of pronotum crenate in middle: Homalispa
Mouth not projecting forward; front of head perpendicular; vertex gradually joins neck; anterior margin of pronotum not crenate: 2
2. Elytra rounded, broadly oval or widens apically: 3
Elytra parallel sided: 5
3. Interantennal carina distinct: 4
Interantennal carina not distinct: Imatidium
4. First antennal segment longer and thicker than second; pronotum with notch external to each setiferous tubercle on anterior emargination; tibiae obliquely and abruptly emarginate so as to appear pointed externally: Aslamidium
Basal two antennal segments subequal in length; anterior border of pronotum without notches; tibiae not pointed externally: Demotispa
5. Body very slender, somewhat cylindrical; elytra at base little wider than pronotum; narrows apically: Stenispa
Body parallel; elytra rarely narrows apically; usually widens gradually: Cephaloleia
Sides of elytra almost vertical from costa 3: Pseudispa
Sides of elytra not almost vertical from costa 3: Sceloenopla
1. Antennae 7-segmented: Heptispa
Antennae 8 to 11-segmented: 2
2. Antennae 8-segmented: 3
Antennae 10- to 11-segmented: 12
3. Each elytron with 10 rows of punctures at base and four costae: 4
Each elytron with 8 rows of punctures at base and three costae: 7
4. First and fourth elytral costae unite; profemur with two teeth: Probaenia
First and fourth elytral costae do not unite; profemur with one tooth or unarmed: 5
5. First elytral costa strongly raised; 2nd raised on apical half; 3rd only on basal half; 4th complete, only finely raised; puncture rows complete: Heterispa
Elytra not as above: 6
6. Vertex of head with medial sulcus: Uroplata
Vertex of head with medial carina: Oxyroplata
7. Occiput metallic black with 2 to 5 deep sulci: 8
Occiput same color as rest of body: 10
8. Elytral puncture rows 4-6 expanded to three rows after middle: Glyphuroplata
Elytral puncture rows 4-6 not expanded after middle: 9
9. Body attenuate: Octhispa
Body flattened: Platocthispa
10. Elytral costa 1 weak: Carinispa
Elytral costa 1 strong: 11
11. Antennal segments compressed, flattened; pronotum at base as wide as base of elytra: Euprionota
Antennal segments rounded, not flattened; pronotum at base narrower than elytra: Pentispa
12. Antennae 10-segmented: Charistena
Antennae 11-segmented: 13
13. Each elytron at base with 3 costae and 8 or 8 1/2 rows of punctures (in some species there may be additional rows either behind the middle or at the base): 14
Each elytron at base with 4 more or less distinct costae and 10 or 10 1/2 rows of punctures (which are sometimes reduced to 8 or 9 rows in the middle): 15
14. Body slender, almost cylindrical, eyes not projecting; mesotibiae strongly curved: Anisostena
Body broader, especially at humeri; eyes slightly projecting; mesotibiae straight: Sumitrosis
15. Form elongate; each elytron with 10 rows of punctures at base: Chalepus
Form oval or cuniform; each elytron with 11 rows of punctures at base: 16
16. Apices of elytra regularly rounded, sutural angles rectangulate: Baliosus
Apices of elytra conjointly rounded, sutural angles emarginate: 17
17. Last antennal segment pointed at apex: Oxychalepus
Last antennal segment rounded at apex: Xenochalepus
Page construction:
John T. Longino, The Evergreen State College, Olympia WA 98505 USA. longinoj@evergreen.edu