96 PROCEEDINGS OF THE ACADEMY OP 



June 21th. 



Mr. Cassin, Vice-President, in the Chair. 



Thirteen members present. 



On Report of the respective Committees, the following papers were 

 ordered to be published : 



New Species of MORDELLIDiE collected in Illinois. 

 BY C. A. HELMUTH, M. D. 



MORDELLA. 



M. lunulata. Anal style long, slender. Last joint of maxillary palpi 

 scalene triangular. Black; head, margins of thorax, scutellum, basal margin 

 of elytra, a humeral lunule and suture cinereous pubescent, beneath varied 

 with cinereous and black. "18. 



MORDELLISTENA. 



M. intermixta. Hind tibiee with two equal ridges ; first joint of hind 

 tarsi with two, second with one ridge. Black ; mouth, front legs and elytra 

 piceous ; pubescence of elytra dark brown, with light hairs intermixed. -10. 



M. auricoma. Hind tibiae with two equal ridges; first joint of hind 

 tarsi with three, second with two ridges. Black, linear ; pubescence brown 

 sericeous ; head, antenna;, anterior half of thorax, front and middle legs fer- 

 ruginous. "11. 



M. nigerrima. Hind tibiae with two ridges, the anterior one extending 

 across the tibia; first joint of hind tarsi with three, second with two ridges. 

 Narrow, entirely black ; pubescence grayish. -09. 



Note on the Species of MYODITES Latr. inhabiting the United States. 

 BY JOHN L. LE CONTE, M. D. 



The species of this genus are found on the flowers of Solidago, in the 

 months of August and September. As they are not much sought after by 

 collectors, several species probably yet remain to be discovered. 



The following analytical table will separate the species now before me. 

 The measurements are decimals of an English inch : 



Abdomen yellow; podex piceous ; elytra yellow, immaculate. 



36. Vertex prominent, acutely carinated 1. s c ab er Lee. 



30. Vertex prominent, not carinated 2. semiflavus n. sp. 



Abdomen of both sexes black. 



24. Vertex obtusely rounded, elytra yellow. 3. 1 u t e i p e n n i s n. sp. 



28. Vertex prominent, slightly carinated ; elytra sparsely punctured, with 

 the base and outer margin black 4. fasciatus Lee. 



20. Vertex acutely prominent and carinated ; elytra densely punctured, 

 with the base aud outer margin blackish 5. W a Is h i i n. sp. 



12 - 14. Vertex slightly but acutely prominent; elytra fuscous; middle 

 and tip pale 6. stylopides Newman. 



1. M. s c a b e r. Niger, confertim subtiliter punctatus, vertice conico, apice 

 acute breviter carinato ; thorace linea dorsali tenuissima elevata ; elytris 



[June, 



