AMERICAN COLEOPTERA. 205 



ent autliors suppose to be distinct is given at the end of the table. 

 This complex of forms seems to me to be similar to that existing in the 

 genus Colaspis, placed by Mr. Crotch as C. trisfia Fabr., in which neither 

 form, size, or color sculpture seem to be fixed within definite limits. 



Upper surface pubescent; prosternum sulcate 2. 



Upper surface glabrous 4. 



2. — Prothorax with scutellar lobe broad, base margined as usual .3. 



Prothorax with scutellar lobe more prominent, very finely margined, sides 

 oblique, not rounded, disc feebly aciculate, subcarinate, more than one- 

 half as long as the elytra; striae of elytra finer and more distant than 

 usual, with only a few confused punctures near the scutel; ochreous 

 yellow, metasternum and greater part of abdomen blackish; 2.5 — 4 mm.; 



Lower Gala 1. Xaiiti Crotch. 



3. — Black opake, densely punctulate, sides of prothorax, basal and Literal 

 margins of elytra yellow; 3.5 mm.; Gala 2. Douiieri Crotch. 



Larger, black, densely punctured, pubescens || Oliv. ; 4 — 4.5 mm.; Atlantic 



region, Texas 3. morosus Ilald. 



a. — Elytra more coarsely punctured. 



Piceous black, densely and finely punctured ; sides of prothorax and elytral 

 margin especially near the apex, ferruginous; elytra with irregular rows 



of more distinct punctures; 3.5 — 4.5 ram.; Gala 4. aualis Lee. 



4. — Colors of upper surface definitely arranged, prosternum sulcate 5. 



Color uniform, or irregularly mottled 11. 



5. — Yellow and black or brown, striped 6. 



Eed and black 9. 



Yellow and black, spotted 10. 



6. — Elytra with striae in great part well-defined 7. 



Elytra confusedly punctured, two outer striae distinct , 8. 



Brown, base of antennae, upper surface and legs ochreous; head with 

 occiput and large frontal spot brown; prothorax strongly punctured, 

 with an M-shaped brown mark; elytra with a dark humeral spot, and 

 narrow sutural line, striae regular, though sinuous; 3.5 — 4.5 mm.; Tex.; 



Ks 5. striatus n. sp. 



a. — Entirely black; Colo. 

 7. — Brown, legs yellow; upper surface pale yellow; prothorax strongly not 

 densely punctured, \vith three brown stripes, the middle one wider; 

 elytra each with suture and two brown stripes, short striae near the scutel 

 confused; scutel brown; 4 mm.; Ks.; Neb 6. virgatiis n. sp. 



Brown, or black, legs, prothorax and elytra pale yellow; prothorax shining 

 rather strongly punctured, with brown spots, the middle one divided in 

 front, and confluent with the lateral ones, forming a dark M; elytra 

 with suture and two discoidal stripes dark, the inner one shorter; the 

 marginal stria approximates the margin about the middle, so that the 

 ejiipleural lobe appears more prominent than usual, and the margin is 

 blackish; viduatus X^ieiy, Hald.; 2.5 — 3.5 mm.; Atlantic region to Col.; 



Tex.; Fla 7. litigiosus Suflr. 



a. — Elytral vittse confluent, legs spotted with black. 

 /J. — Prothorax sparsely less strongly punctured. 

 7. — Almost entirely black. 



