July, 1S92.] 



PSYCHE 



289 



THREE NEW PAMBOLIDS FROM THE UNITED STATES. 



BY WM. H. ASHMEAD, WASHINGTON, D. C. 



Arraphis Ruthe. 



No species of this interesting genus 

 is yet described from North America 

 and nothing is known of the habits of 

 the several described European species. 

 Two distinct species, captured by 

 myself in Florida while sweeping, and 

 known to me only in the male sex, may 

 be thus distinguished : — 



Metanotum coarsely rugose. 

 Black ; head yellowish. 



A. atnericana sp. n. 

 Metanotum distinctly areolated. 



Black ; collar yellow ; basal two- 

 thirds of abdomen reddish. 



A. minuta sp. n. 



A. atnericana sp. n. £. Length, 3 mm. 

 Black, shining, with a short, sparse pube- 

 scence; head and collar, reddish-yellow; 

 basal three joints of antennae, tegulae, and 

 legs, honey-yellow. Head transverse, rounded 

 off behind the eyes, smooth, impunctured ; 

 ej'es rounded, prominent. Mesonotum tri- 

 lobed, the middle lobe somewhat rugulose, 

 carinated at sides posteriorly, the lateral 

 lobes shagreened. Scutellum convex, 



smooth, shining, with a profound crenate 

 furrow at base. Pleurae rugose. Metathorax 

 coarsely rugose, the angles produced into a 

 long spine ; tips of the spines yellowish ; 

 there is also a delicate carina extending from 

 the base of each spine forward to the spira- 

 cles. Wings hyaline, the stigma and ner- 

 vures brownish-yellow, the costal edge black, 

 the recurrent nervure interstitial with the 

 transverse cubital. Abdomen oblong-oval, 

 black, much depressed, highly polished, and 



composed of but three segments, the first 

 with a deep channel along the sides, bounded 

 by a carina above. 



Hab. — Jacksonville, Florida. 

 Type in Coll. Ash mead. 

 Described from a single specimen. 



A. minuta sp. n . $. Length 1.4 mm. 

 Black, shining; collar yellow; basal two- 

 thirds of abdomen reddish, the basal half 

 finely longitudinally striated ; rest of the 

 abdomen highly polished. Antennae long, 

 slender, black, the pedicel and first flagellar 

 joint alone yellowish. Thorax faintly sha- 

 greened or punctate, the mesonotum trilobed, 

 the middle lobe with a slight impression, 

 posteriorly just in front of the scutellum but 

 without a carina at the sides. Scutellum 

 smooth with a faintly crenated fovea at base. 

 Pleurae finely rugose. Metathorax regularly 

 areolated, the angles produced into long 

 yellow spines, the surface of the areas, ex- 

 cept the long middle, smooth and shining, 

 the middle area transversely wrinkled. Legs 

 honey -yellow. Wings hyaline, the stigma 

 and nervures pale yellow. 



Hab. — Jacksonville, Florida. 

 Type in Coll. Ashmead. 



Pambolus Haliday. 



P. bifasciatus sp. n. $ $ . Length J 3 

 mm., ovip. 0.3 mm. ; $ 2.6 mm. Black, sub- 

 opaque, minutely shagreened ; metathorax 

 finely rugose and indistinctly areolated. 

 Mesonotum without furrows. Scutellum 

 flat with a crenate furrow across the base. 

 Wings hyaline with two transverse, fuscous 

 bands. Antenna? in $ 21-, in $ 22- jointed, 

 pale yellowish-brown. Legs dark fuscous, 



