CHARLES W. HOOKER. 41 



petiole inclining to yellow, indistinctly keeled ; post-petiole thicker 

 than and clearly defined from the petiole, luteous, finely and closely 

 punctured ; the other segments are densely pilose, the apical one more 

 darkly clouded. Wings hyaline, stigma testaceous, discocubital vein 

 angularly broken and strongly appendiculate, nervulus antefurcal to 

 interstitial. 



I have not seen the type or a specimen of this species, and 

 can only give the original description slightly rearranged. 



Type. — Location unknown.* 



Cameron adds : ' ' Smaller than O. flavo-orbitalis ; the head 

 and thorax almost entirely yellow, the third joint of the an- 

 tennae longer, the first abdominal segment longer and nar- 

 rower. The post petiole longer in proportion to the petiole : 

 the second segment contracted before the middle (in addition 

 to the contraction at the base), the third discoidal cellule dis- 

 tinctly angled in the middle, the projecting branch reaching 

 just half way across." 



I am not sure of the validity of this species, but it is closely 

 related to O. bilineatus. 



Distribution. — Guatemala, Capetillo. 



Ophlon bilineatus Say. 

 Ophion bilineatus Say, Contr. Maclur. Lye. Arts Sci., p. 75, n. 1..1828. 

 " Boston Journ. Nat. Hist., I, p. 240, n. 4. ..1835. 

 . •' " Compl. Wr. LaConte ed., I, p. 378, n. 1; 



II, p. 695, n. 4 (reprints, 1883, 1891) 1859. 



Cresson, Proc. Ent. Soc. Phila., I, 206, Ind 1862. 



Norton, Proc. Ent. Soc. Phila., I, 358 1863. 



" Sanborn, Mass. State Bd. Agr., Tenth Rept., 



p. 169 1863. 



" Riley, Third Ann. Rept. Ins. Missouri, p. 69 1871. 



Cresson, Trans. Amer. Ent. Soc, IV, p. 169 1873. 



Geog. Sur. Ter. Rept. Zool., 5, p. 



706, Eastern Nevada 1875. 



Provancher, Nat Can., XXI, pp. 117-118, fig. 4.1879. 

 Packard, Bost. Soc. Nat. Hist. Proc, 21, p. 19.. 1882. 



tityri " Idem 1882. 



" bilineatus Saunders, Ins. Inj. to Fruits, p. 273, 9 fig. 282 



(second ed., 1889, third ed., 1909) 1883. 



" " Provancher, Faun. Ent. Can., II, Hym., p. 



351, n. 3, fig. 36, a, 9 6" 1883. 



* Not in the British Museum ; it may have been deposited elsewhere 

 or retained by Cameron. 



TRANS. AM. KNT. SOC, XXXVIII. (6) 



