126 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



meadow and pasture pests. Others live almost exclusively in 

 heath, swamp or bog conditions, and with knowledge of their habi- 

 tats often definite species can easily be collected since their 

 conditions of living are often very restricted. 



Key to Species. 



i. Head narrower than pronotum. (Fig. 12, ia.) 2 



Head as wide as or wider than pronotum. (Fig. 12, 2a.) 4 



2. Large, exceeding 6.5 mm. in length, broad, but rather elongate ... 3 

 Shorter and broader, not exceeding 6 mm. in length decorus 



3. Resembling a Gypona in general, very large, 9 to 10 mm., bright 



reddish brown majestus 



Smaller, not exceeding 7 mm., fulvous, elytra with pale trilobate 

 commissural line excultus 



4. Margin of vertex often rather sharp and angulate, but never thin 



or foliaceous. (Fig. 12, 2b.) 5 



Margin of vertex with a thin sharp edge sometimes foliaceous. 

 (Fig. 12, 3b.) 12 



5. Margin of vertex very bluntly angled with the front which is rather 



strongly inflated 6 



Margin of vertex more angulate, rather sharp, front not strongly 

 inflated 7 



6. Head angularly produced, longer on middle than next eye, elytra 



sparsely inscribed, male plates short and broad lobatus 



Head not produced, scarcely longer on middle than next eye, elytra 

 more heavily inscribed, male plates long, tapering. (Fig. 12, 2a.) 



fuscipennis 



7. Elytra rather uniformly inscribed, usually no conspicuous dark 



blotches or bands 8 



Elytra with light and dark areas often appearing as transverse 

 bands, usually conspicuous or with vertex and pronotum pale, 

 and elytra dark 11 



8. Short and robust not exceeding 5 mm. in length, female segment 



almost truncate with median notch pusillus 



Sometimes rather short but not robust, usually more than 5 mm. 

 or if short with female segment not notched 9 



9. Female segment truncate without teeth or incisions . , truncatus 



Female segment strongly incised or excavated on posterior margin 10 



10. Broad with rather blunt head. Female segment roundingly pro- 



duced with deep triangular incision, not uniformly irrorate . .incisus 

 Narrow with angled vertex. Female segment with rather deep,, 

 square excavation containing broad median tooth, rather uniformly 

 irrorate irroratus 



11. Vertex, pronotum and scutellum pale yellow, elytra with lighter 



areas at middle and apex of clavus, female segment with promi- 

 nent angles, shallowly excavated with median notch collitus 



Vertex, pronotum and scutellum darker, elytra with clavus paler, 

 female segment deeply, squarely excavated almost to base . . .apertus 



12. Small, 5.5-6.5 mm 13 



Larger, 7-8.5 mm. Vertex and pronotum with markings, elytra 



evenly inscribed or stippled 14 



13. Vertex, pronotum and scutellum pale yellow, unmarked, elytra 



uniformly evenly inscribed with heavy pigment lines, appearing 



very dark in color f ulvidorsum 



Vertex often thick but flattened near apex, appearing pressed in 

 above and below, vertex and pronotum pale in color heavily and 

 irregularly mottled with brown. Elytra banded tullahomi 



