186 PROCEEDINGS OF THE ACADEMY OF [April, 



Phidippus electus Koch. 



A young, half-grown female. Mandibles scarcely gr£en on the 

 apical part, clypeus white-haired, legs with many short white hairs; 

 abdomen shrunken, some metallic scales behind, with much white 

 on the sides above, venter with a broad black median stripe, and 

 white hairs each side. 

 Phidippus alchymista Koch. 



Male and female, is Ph. audax Hentz; is marked in every way like 

 his concinnatus. 

 Fhidippas concinnatus Koch. 



A male, is Ph. audax; spots on abdomen are snow-white, white 

 hair on inner side of patella I, tibia I with black fringe below. 

 Phidippus dubiosus Koch. 



One young specimen, is audax Hentz. 

 Phidippus personatus Koch. . 



Four specimens, all are young Ph. audax; the spots on abdomen 

 are yellowish. 

 Phidippus mundulus Koch. 



Three specimens; two are surely Ph. audax not mature; the other 

 is much rubbed and has some green metallic scales on abdomen, and 

 perhaps Ph. multicolor Htz. 

 Plexippus rufus Koch. 



One specimen, is Dendryphantes militaris. 

 Plexippus bivittatus Koch. 



A young, not half-grown specimen of Phidippus rufus Hentz. 

 Plexippus undata Koch. 



A male, Maria vittata, which is colored as in the female. 

 Plexippus albovittatus Koch. 



Two young rubbed specimens, appear to be Dendryphantes militaris; 

 clypeus white haired, cannot see any marks on the abdomen, which 

 has white scales on it; the mandibles are red-brown. 

 Eris aurigera Koch. 



Four specimens, male, are Dendryphantes militaris Hentz. 



Euophrys leucophaea Koch. 



One male, is Dendryphantes octavus Hentz {mstivalis Em.). 

 Euophrys humilis Koch. 



One female, not quite mature, is Dendryphantes militaris Hentz. 

 Euophrys amabilis Koch. 



A young female, is young of Phidippus podagrosus Hentz {multi- 

 formis Emer.). 



